ATV 250 Service Manual page 183

Clutch spring
1)Inspection
.Clutch spling
If worn damaged,replace it
2)Measurement
.Free length of clutch spring@
If not of specification replace a set of spring
Min Limit of clutch spring length
32.9mm(1.30 in)
Clutch operartion rocker assy
Inspection
.Operation rocker assy ¢Ù
.Adjusting screw ¢Ú
.O-ring ¢Û
If cracks,wear or damage replace it
21.Oil pump
1)Measurement
.Clearance @ between oil pump and out rotor
¢Úwith feeler gauge
If out of specification,replace oil pump
Clearance Limit
0.09mm(0.004 in)
2)Measurement
.Side clearance between outer rotor¢Ù and in-
ner rotor ¢Ú
If out of specification,replace oil pump
Side clearance limit
0.2mm(0.008 in)
3)Inspection
.Gear of driving oil pump on driving gear of
balance shaft
.Oil pump gear assy ¢Ú
If worn scraped damaged,replace it
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