Ignition Coil for Yamaha Yfm660 Yfm 660 Grizzly (2002-2008) Warranty COILSPEC Ignition Coil - 2 Year Warranty Included Yamaha YFM 660 Grizzly (2002-2008) Ultra high output spark / Smooth engine operation Efficient power transfer connections Please Note: Some models require use of the original spark plug boot from ATV.