2004-2006 (2007) Honda TRX400FA Fourtrax Rancher / TRX400FGA Rancher AT GPScape Service Manual, Page 171Get this manual
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CYLINDER HEADVALVECAMSHAFT INSPECTION CAMSHAFT
Check the decompressor cam operationPress on the decompressor cam as shownAs you press on one side, the decompressor cam should lock above t