{"title":"Exhaust Spring and Accessories","description":null,"products":[{"product_id":"spring-o-ring-kit-cr500-92-01","title":"FMF Exhaust Spring and O-Ring Kit (78-1068 \/ 011308) | Honda CR500R (1989-2001)","description":"\u003cp\u003eComplete high-performance exhaust hardware replacement kit engineered to secure expansion chambers and prevent exhaust leaks at the cylinder spigot. Includes heavy-duty, high-temperature exhaust springs and matching high-grade sealing O-rings designed to withstand extreme thermal stress and heavy vibration under aggressive big-bore riding conditions.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs \u0026amp; Details\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eManufacturer Part Number:\u003c\/b\u003e 78-1068\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAlternative Part Number:\u003c\/b\u003e FMF 011308\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eKit Type:\u003c\/b\u003e Exhaust Spring and O-Ring Maintenance Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eApplication:\u003c\/b\u003e Pipe-to-cylinder connection seal and retention\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTwo-Stroke Vehicle Fitment\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eYear Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHonda\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCR 500R\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTwo-Stroke Big-Bore Motocross \/ Open Class\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1989–2001\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eTSO Garage Note\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAn inexpensive insurance policy against exhaust leaks, lost pipes, and doused cylinder spigots on a legendary CR500. Constant vibration and extreme heat cook out factory rubber O-rings and stretch springs over time, leading to oily spooge leaking down your cases and lost exhaust pressure. Keeping a fresh FMF kit on hand ensures a tight seal and locks your expansion chamber securely in place.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":54553836716311,"sku":"78-1068","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/3818\/7543\/files\/8a68-572a8972aadab.jpg?v=1785216242"},{"product_id":"spring-o-ring-kit-yz250-95-98","title":"FMF Exhaust Spring and O-Ring Kit (78-1097 \/ 011319) | Yamaha YZ125 (1999-2021)","description":"\u003cp\u003eComplete high-performance exhaust hardware replacement kit engineered to secure expansion chambers and prevent exhaust leaks at the cylinder spigot. Includes heavy-duty, high-temperature exhaust springs and matching high-grade sealing O-rings designed to withstand extreme thermal stress and heavy vibration under aggressive high-revving two-stroke riding conditions.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs \u0026amp; Details\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eManufacturer Part Number:\u003c\/b\u003e 78-1097\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAlternative Part Number:\u003c\/b\u003e FMF 011319\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eKit Type:\u003c\/b\u003e Exhaust Spring and O-Ring Maintenance Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eApplication:\u003c\/b\u003e Pipe-to-cylinder connection seal and retention\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTwo-Stroke Vehicle Fitment\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eYear Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eYamaha\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eYZ 125\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTwo-Stroke Motocross \/ Off-Road\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1999–2021\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eTSO Garage Note\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAn inexpensive insurance policy against exhaust leaks, lost pipes, and doused cylinder spigots on high-revving YZ125s. Constant vibration and extreme heat cook out factory rubber O-rings and stretch springs over time, leading to oily spooge leaking down your cases and lost expansion chamber pressure. Keeping a fresh FMF kit on hand ensures a tight seal and locks your exhaust securely in place.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":54553851592983,"sku":"78-1097","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/3818\/7543\/files\/9722-5b05d3128200d.jpg?v=1785216319"},{"product_id":"spring-o-ring-kit-yz250-99-20","title":"FMF Exhaust Spring and O-Ring Kit (78-1096 \/ 011318) | Yamaha YZ250 \/ YZ250X (1999-2026)","description":"\u003cp\u003eComplete high-performance exhaust hardware replacement kit engineered to secure expansion chambers and prevent exhaust leaks at the cylinder spigot. Includes heavy-duty, high-temperature exhaust springs and matching high-grade sealing O-rings designed to withstand extreme thermal stress and heavy vibration under aggressive modern two-stroke riding conditions.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs \u0026amp; Details\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eManufacturer Part Number:\u003c\/b\u003e 78-1096\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAlternative Part Number:\u003c\/b\u003e FMF 011318\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eKit Type:\u003c\/b\u003e Exhaust Spring and O-Ring Maintenance Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eApplication:\u003c\/b\u003e Pipe-to-cylinder connection seal and retention\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTwo-Stroke Vehicle Fitment\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eYear Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eYamaha\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eYZ 250\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTwo-Stroke Motocross \/ Off-Road\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1999–2026\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eYamaha\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eYZ 250X\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTwo-Stroke Cross-Country\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2016–2026\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eTSO Garage Note\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAn inexpensive insurance policy against exhaust leaks, lost pipes, and doused cylinder spigots on modern aluminum-frame YZ250s. Constant vibration and extreme heat cook out factory rubber O-rings and stretch springs over time, leading to oily spooge leaking down your cases and lost exhaust pressure. Keeping a fresh FMF kit on hand ensures a tight seal and locks your expansion chamber securely in place.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":54553851822359,"sku":"78-1096","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/3818\/7543\/files\/8a68-572a8972aadab_2bce9784-6dc7-4e86-9365-046b66c83e04.jpg?v=1785216323"},{"product_id":"spring-o-ring-kit-yz250-89-98","title":"FMF Exhaust Spring and O-Ring Kit (78-1095 \/ 011317) | Yamaha YZ250 (1989-1998)","description":"\u003cp\u003eComplete high-performance exhaust hardware replacement kit engineered to secure expansion chambers and prevent exhaust leaks at the cylinder spigot. Includes heavy-duty, high-temperature exhaust springs and matching high-grade sealing O-rings designed to withstand extreme thermal stress and heavy vibration under aggressive two-stroke riding conditions.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs \u0026amp; Details\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eManufacturer Part Number:\u003c\/b\u003e 78-1095\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAlternative Part Number:\u003c\/b\u003e FMF 011317\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eKit Type:\u003c\/b\u003e Exhaust Spring and O-Ring Maintenance Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eApplication:\u003c\/b\u003e Pipe-to-cylinder connection seal and retention\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTwo-Stroke Vehicle Fitment\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100.059%; height: 45.1876px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 12.4369%; height: 19.5938px;\"\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 10.9978%; height: 19.5938px;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 53.2271%; height: 19.5938px;\"\u003e\u003cstrong\u003eEngine Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 18.8818%; height: 19.5938px;\"\u003e\u003cstrong\u003eYear Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 25.5938px;\"\u003e\n\u003ctd style=\"width: 12.4369%; height: 25.5938px;\"\u003e\u003cspan\u003eYamaha\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 10.9978%; height: 25.5938px;\"\u003e\u003cspan\u003eYZ 250\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 53.2271%; height: 25.5938px;\"\u003e\u003cspan\u003eTwo-Stroke Motocross \/ Off-Road\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 18.8818%; height: 25.5938px;\"\u003e\u003cspan\u003e1989–1998\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eTSO Garage Note\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAn inexpensive insurance policy against exhaust leaks, lost pipes, and doused cylinder spigots on older steel-frame YZ250s. Constant vibration and extreme heat cook out factory rubber O-rings and stretch springs over time, leading to oily spooge leaking down your cases and lost exhaust pressure. Keeping a fresh FMF kit on hand ensures a tight seal and locks your expansion chamber securely in place.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":54553852051735,"sku":"78-1095","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/3818\/7543\/files\/8a68-572a8972aadab_9cfe8018-42ba-4f5d-80b4-57514625f0fb.jpg?v=1785216326"},{"product_id":"spring-o-ring-kit","title":"FMF Exhaust O-Ring \u0026 Spring Kit (78-014814 \/ 014814) | Beta 250RR \/ 300RR (2013-2025)","description":"\u003cp\u003eHigh-performance exhaust maintenance kit engineered to maintain a secure, leak-free seal between the expansion chamber and exhaust port under severe thermal cycling and high-frequency engine vibration. Built with high-tensile steel springs for optimal tension and high-temperature Viton-type O-rings formulated to withstand aggressive exhaust gas temperatures without hardening, flattening, or blowing out.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs \u0026amp; Details\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eManufacturer Part Number:\u003c\/b\u003e 78-014814\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAlternative Part Number:\u003c\/b\u003e \u003cspan class=\"citation-166 citation-end-166\"\u003eFMF 014814\u003csup class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eKit Contents:\u003c\/b\u003e 2 High-Temperature Exhaust O-Rings, 2 Heavy-Duty Exhaust Springs\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eApplication Type:\u003c\/b\u003e Expansion Chamber Mount \/ Seal Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial Composition:\u003c\/b\u003e High-temp elastomeric rubber compounds and heat-treated spring steel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTSO Garage Note\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAn essential service kit for high-output two-stroke builds. Exhaust leaks at the spigot rob bottom-end power and create messy carbon buildup down the front of the cases. Keeping a fresh set of these high-temperature O-rings and high-tension springs ensures proper pipe positioning and an airtight seal under aggressive racing frequencies.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":54553883312407,"sku":"78-014814","price":12.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/3818\/7543\/files\/e410-5eac2a8097a5e.jpg?v=1785216473"},{"product_id":"spring-o-ring-kit-1","title":"FMF Exhaust O-Ring \u0026 Spring Kit (78-014815 \/ 014815) | Kawasaki KX250 (2005-2007)","description":"\u003cp\u003eHigh-performance exhaust maintenance kit engineered to maintain a secure, leak-free seal between the expansion chamber and exhaust port under severe thermal cycling and high-frequency engine vibration. Built with high-tensile steel springs for optimal tension and high-temperature Viton-type O-rings formulated to withstand aggressive exhaust gas temperatures without hardening, flattening, or blowing out.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs \u0026amp; Details\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eManufacturer Part Number:\u003c\/b\u003e 78-014815\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAlternative Part Number:\u003c\/b\u003e FMF 014815\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eKit Contents:\u003c\/b\u003e 2 High-Temperature Exhaust O-Rings, 2 Heavy-Duty Exhaust Springs\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eApplication Type:\u003c\/b\u003e Expansion Chamber Mount \/ Seal Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial Composition:\u003c\/b\u003e High-temp elastomeric rubber compounds and heat-treated spring steel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTSO Garage Note\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAn essential service kit for high-output two-stroke builds. Exhaust leaks at the spigot rob bottom-end power and create messy carbon buildup down the front of the cases. Keeping a fresh set of these high-temperature O-rings and high-tension springs ensures proper pipe positioning and an airtight seal under aggressive racing frequencies.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":54553884229911,"sku":"78-014815","price":12.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/3818\/7543\/files\/e410-5eac2a8097a5e_0ba87693-287b-426b-86f4-c2c5cebc100a.jpg?v=1785216478"},{"product_id":"spring-o-ring-kit-cr250-92-01","title":"FMF Exhaust O-Ring \u0026 Spring Kit (78-1065 \/ 011307) | Honda CR250R","description":"\u003cp\u003eHigh-performance exhaust maintenance kit designed to maintain a secure, leak-free seal between the expansion chamber and exhaust port under severe thermal cycling and high-frequency engine vibration. Engineered with high-tensile steel springs for optimal tension and high-temperature Viton-type O-rings formulated to withstand aggressive exhaust gas temperatures without hardening, flattening, or blowing out.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs \u0026amp; Details\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eManufacturer Part Number:\u003c\/b\u003e 78-1065\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAlternative Part Number:\u003c\/b\u003e FMF 011307\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eKit Contents:\u003c\/b\u003e 2 High-Temperature Exhaust O-Rings, 2 Heavy-Duty Exhaust Springs\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eApplication Type:\u003c\/b\u003e Expansion Chamber Mount \/ Seal Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial Composition:\u003c\/b\u003e High-temp elastomeric rubber compounds and heat-treated spring steel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTSO Garage Note\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAn essential service kit for high-output two-stroke builds. Exhaust leaks at the spigot rob bottom-end power and create messy carbon buildup down the front of the cases. Keeping a fresh set of these high-temperature O-rings and high-tension springs ensures proper pipe positioning and an airtight seal under aggressive racing frequencies.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":54553885540631,"sku":"78-1065","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/3818\/7543\/files\/8a68-572a8972aadab_9ab1f49a-867f-4ff4-8795-cdb8ee9b00ab.jpg?v=1785216482"},{"product_id":"spring-o-ring-kit-kx80","title":"FMF Exhaust Spring and O-Ring Kit (78-1071) | Kawasaki KX80 \/ KX100 (1991-1997)","description":"\u003cp\u003eComplete high-performance exhaust hardware replacement kit engineered to secure expansion chambers and prevent exhaust leaks at the cylinder spigot. Includes heavy-duty, high-temperature exhaust springs and matching high-grade sealing O-rings designed to withstand extreme thermal stress and heavy vibration under aggressive junior two-stroke riding conditions.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs \u0026amp; Details\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eManufacturer Part Number:\u003c\/b\u003e 78-1071\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eKit Type:\u003c\/b\u003e Exhaust Spring and O-Ring Maintenance Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eApplication:\u003c\/b\u003e Pipe-to-cylinder connection seal and retention\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTwo-Stroke Vehicle Fitment\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eYear Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eKawasaki\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eKX 80\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTwo-Stroke Junior Motocross\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1991–1997\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eKawasaki\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eKX 100\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTwo-Stroke Junior Motocross\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1995–1997\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTSO Garage Note\u003c\/h3\u003e\n\u003cp\u003eAn inexpensive insurance policy against exhaust leaks, lost pipes, and doused cylinder spigots on vintage mini-motos. Constant vibration and extreme heat cook out factory rubber O-rings and stretch springs over time, leading to oily spooge leaking down your cases and lost exhaust pressure. Keeping a fresh FMF kit on hand ensures a tight seal and locks your expansion chamber securely in place.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":54553886523671,"sku":"78-1071","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/3818\/7543\/files\/8a68-572a8972aadab_036594d7-335d-4877-b0cb-44414d0fb5ba.jpg?v=1785216486"},{"product_id":"spring-o-ring-kit-kx80-85-100-98-02","title":"FMF Exhaust Spring \u0026 O-Ring Kit (78-1072 \/ 011298) | Kawasaki KX80 \/ KX85 \/ KX100 (1998-2002)","description":"\u003cp\u003eHigh-performance replacement exhaust mounting hardware kit engineered specifically for Kawasaki two-stroke mini-motocross applications. Designed to provide a secure, leak-free seal between the exhaust header pipe and cylinder spigot while withstanding extreme thermal expansion and high-RPM engine vibration.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs \u0026amp; Details\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eManufacturer Part Number:\u003c\/b\u003e 78-1072\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAlternative Part Number:\u003c\/b\u003e FMF 011298\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eComponent Type:\u003c\/b\u003e Exhaust Spring \u0026amp; O-Ring Kit \/ Mounting Hardware\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial \u0026amp; Construction:\u003c\/b\u003e High-temperature fluoroelastomer (Viton) O-rings and heavy-duty steel tension springs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTwo-Stroke Vehicle Fitment\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eYear Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eKawasaki\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eKX80 \/ KX85 \/ KX100\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTwo-Stroke Mini Motocross\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1998–2002\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eTSO Garage Note\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAn essential maintenance item for keeping your young rider's Kawasaki mini smoker leak-free at the exhaust spigot. Fresh high-temp O-rings eliminate oily exhaust drool, while new heavy-duty tension springs ensure the expansion chamber stays firmly anchored under high-RPM junior track abuse.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":54553888522519,"sku":"78-1072","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/3818\/7543\/files\/8a68-572a8972aadab_4ec10037-85c9-49d9-bb85-8bf9039279b0.jpg?v=1785216490"},{"product_id":"spring-o-ring-kit-kx125-91-02","title":"FMF Exhaust Spring \u0026 O-Ring Kit (78-1073 \/ 011299) | Kawasaki KX125 (1991-2002)","description":"\u003cp\u003eHigh-performance replacement exhaust mounting hardware kit engineered specifically for Kawasaki two-stroke motocross applications. Designed to provide a secure, leak-free seal between the exhaust header pipe and cylinder spigot while withstanding extreme thermal expansion and high-RPM engine vibration.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs \u0026amp; Details\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eManufacturer Part Number:\u003c\/b\u003e 78-1073\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAlternative Part Number:\u003c\/b\u003e FMF 011299\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eComponent Type:\u003c\/b\u003e Exhaust Spring \u0026amp; O-Ring Kit \/ Mounting Hardware\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial \u0026amp; Construction:\u003c\/b\u003e High-temperature fluoroelastomer (Viton) O-rings and heavy-duty steel tension springs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTwo-Stroke Vehicle Fitment\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eYear Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eKawasaki\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eKX125\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTwo-Stroke Motocross\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1991–2002\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eTSO Garage Note\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAn essential maintenance item for keeping your 90s-era Kawasaki KX125 screamer leak-free. Fresh high-temp O-rings eliminate oily exhaust drool at the cylinder port, while new heavy-duty tension springs ensure your expansion chamber stays firmly anchored under high-RPM track abuse.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":54553889308951,"sku":"78-1073","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/3818\/7543\/files\/8a68-572a8972aadab_e0009bdd-aeb6-4aca-a218-a8c0394d3c07.jpg?v=1785216494"},{"product_id":"spring-o-ring-kit-kx250-500-89-02","title":"SEO \u0026 GMC Title FMF Exhaust Spring \u0026 O-Ring Kit (78-1075 \/ 011301) | Kawasaki KX250 \u0026 KX500 (1989-2004)","description":"\u003cp\u003eHigh-performance replacement exhaust mounting hardware kit engineered specifically for legendary big-bore Kawasaki two-stroke applications. Designed to provide a secure, leak-free seal between the exhaust header pipe and cylinder spigot while withstanding extreme thermal expansion and massive engine vibration.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs \u0026amp; Details\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eManufacturer Part Number:\u003c\/b\u003e 78-1075\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAlternative Part Number:\u003c\/b\u003e FMF 011301\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eComponent Type:\u003c\/b\u003e Exhaust Spring \u0026amp; O-Ring Kit \/ Mounting Hardware\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial \u0026amp; Construction:\u003c\/b\u003e High-temperature fluoroelastomer (Viton) O-rings and heavy-duty steel expansion springs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTwo-Stroke Vehicle Fitment\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eYear Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eKawasaki\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eKX250 \/ KX500\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTwo-Stroke Motocross \/ Off-Road\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1989–2004 (KX250) \/ 1989–2004 (KX500)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eTSO Garage Note\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAn absolute workbench staple for keeping your big-bore KX running clean and sealed. Fresh high-temp O-rings put an end to oily exhaust drool at the cylinder port, while new heavy-duty tension springs make sure your expansion chamber stays firmly anchored under the brutal power pulses of a KX500 or hard-hitting KX250.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":54553889997079,"sku":"78-1075","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/3818\/7543\/files\/8a68-572a8972aadab_af2dff2d-7c15-4940-8004-7a8ec4b12241.jpg?v=1785216499"},{"product_id":"spring-o-ring-kit-rm125-97-02","title":"FMF Exhaust Spring \u0026 O-Ring Kit (78-1083 \/ 011309) | Suzuki RM125 (1997-2002)","description":"\u003cp\u003eHigh-performance replacement exhaust mounting hardware kit engineered specifically for two-stroke motocross applications. Designed to provide a secure, leak-free seal between the exhaust header pipe and cylinder spigot while withstanding extreme thermal expansion and engine vibration.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs \u0026amp; Details\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eManufacturer Part Number:\u003c\/b\u003e 78-1083\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAlternative Part Number:\u003c\/b\u003e FMF 011309\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eComponent Type:\u003c\/b\u003e Exhaust Spring \u0026amp; O-Ring Kit \/ Mounting Hardware\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial \u0026amp; Construction:\u003c\/b\u003e High-temperature fluoroelastomer (Viton) O-rings and heavy-duty steel expansion springs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTwo-Stroke Vehicle Fitment\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eYear Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSuzuki\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRM125\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTwo-Stroke Motocross\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1997–2002\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTSO Garage Note\u003c\/h3\u003e\n\u003cp\u003eAn essential maintenance item for keeping your late-90s to early-2000s Suzuki RM125 screamer leak-free. Fresh high-temp O-rings eliminate oily exhaust drool at the cylinder port, while new heavy-duty tension springs ensure your expansion chamber stays firmly anchored under high-RPM track abuse.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":54553890717975,"sku":"78-1083","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/3818\/7543\/files\/8a68-572a8972aadab_7e6e9ffc-e48c-4774-bf78-78e3c508221f.jpg?v=1785216508"},{"product_id":"spring-o-ring-kit-rm250-94-02","title":"SEO \u0026 GMC Title FMF Exhaust Spring \u0026 O-Ring Kit (78-1085 \/ 011311) | Suzuki RM250 (1994-2002)","description":"\u003cp\u003eHigh-performance replacement exhaust mounting hardware kit engineered specifically for two-stroke motocross applications. 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Fresh high-temp O-rings eliminate oily exhaust drool at the cylinder port, while new heavy-duty tension springs ensure your expansion chamber stays firmly anchored under aggressive motocross and track abuse.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":54553891209495,"sku":"78-1085","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/3818\/7543\/files\/8a68-572a8972aadab_e20b3ed2-5321-4800-bf8b-bccc069d5bf4.jpg?v=1785216512"},{"product_id":"spring-o-ring-kit-yz125-89-98","title":"FMF Exhaust Spring \u0026 O-Ring Kit (78-1093 \/ 011315) | Yamaha YZ125 (1989-1998)","description":"\u003cp\u003eHigh-performance replacement exhaust mounting hardware kit engineered specifically for two-stroke motocross applications. 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