1998-2001 Yamaha YFM600FHM Grizzly Factory Service Manual, Page 108Get this manual
COMPRESSION PRESSURE MEASUREMENT ENGINE Oil lEVEL INSPECTION
IINSP ADJ
Compression pressure (at sea level): Standard: 850 kPa (8.5 kgcm2, 121 psi) Minimum: 800 kPa (8.0 kgcm2, 114 psi) Maximum: 900 kPa (9.0 kgcm2, 128 psi)
Measurement steps: .Crank over the engine with the electric starter (be sure the battery is fully charged) with the throttle wide-open until the compression reading on the gauge stabilizesWARNING When cranking the engine, ground the spark plug lead to prevent sparking
7.lnstall: Spark plug
'''30118 Nm (1.8 kg13 ft Ibll
ENGINE OIL LEVEL INSPECTION 1.Place the machine on level surface2.lnspect: Engine oil level Oil level should be between the maximum CD and minimum marksOil level low Add oil to the proper level