FITS ALL YAMAHA YFZ450 CARB MODELS AND YEARS

• NEW 98mm cylinder
• CP or JE forged hi comp pump gas piston
• Hi temp piston rings
• DLC wristpin
• Circlips
• Hotrods Stroker crank with rod
• HD crank bearings
• Water pump bearing and seal
• Transmission bearings
• Complete top and bottom end gasket kit
• Complete crankcase oil seal kit
• Head stud kit
• '07+ Oil pump
• Timing chain
• HD clutch kit
• Late model oil pump assembly
• Install instructions***
  Stickers

This is a bolt on kit that requires no machining of any kind.  Runs on race gas.  All parts are new in the original packaging, and the original manufacturers' warranties apply*.

Please check your order thoroughly when receiving it.  If for any reason at all you are not 100% happy please contact us right away so we can help resolve the issue. Thanks 

***We ALWAYS recommend that this kit be installed by a qualified mechanic with experience working on these types of motors.  Warranty does not include any failure that is a result of improper installation, improper tuning, improper break in, or misuse.  Piston comes with specific instructions for setting the ring gap.  If you do not follow these exactly your motor will fail.  For any warranty to be considered the part(s) in question must first be sent to us and possibly the manufacturer for inspection.  We can not warranty parts based on photos or phone calls alone.