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WISECO offers this complete crankshaft for YAMAHA YFM 660 RAPTOR 2WD 2001-2005. The crankshaft is the engine’s main shaft: the rod turns it and it drives the clutch and gearbox.
The benefits:
Wiseco crankshafts have a heat-treated, shot-peened rod and precision-machined flywheels, from the American engine specialist since 1941.
Unusual vibration, a deep knock that follows engine speed or play in the con-rod: the bottom end needs a rebuild.
The manufacturer publishes no hour interval for this model: have the con-rod play checked at every piston change. Cross-Mania guideline: rebuild the bottom end every 2 to 3 top-end rebuilds.
Cross-Mania tip: Take the opportunity, with the cases open, to replace the crankshaft bearings and oil seals.
Check the exact model and year of your bike in the list below before ordering.
Fits:
YAMAHA YFM 660 RAPTOR 2WD 2005
YAMAHA YFM 660 RAPTOR 2WD 2004
YAMAHA YFM 660 RAPTOR 2WD 2003
YAMAHA YFM 660 RAPTOR 2WD 2002
YAMAHA YFM 660 RAPTOR 2WD 2001
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