ATV 250 Service Manual page 180

Main points of reassembly of crankshaft:
The oil traces on crankshaft ¢Ùand crank pin
¢Ú should be connected correctly, the malpo-
sition of two oil traces should be with in 1mm
(0.04 in)
17.Driving gear of balance shaft and gear of
balance shaft
Inspection:
.Driving gear of balance shaft ¢Ù
.Gear of balance shaft ¢Ú
If worn or damaged, replace two gears at the
same time
18.Primary gear and electric starting gear
1)Inspection
.Main driving gear ¢Ù
.Clutch gear assy ¢Ú
If scraped worn or damaged, replace it
If the noise is ovehigh during operation, replace
two gears at the same time.
2)Inspection
.Duplex intermediate gear ¢Ù
Intermediate gear axle ¢Ú
If scraped, worn , or damaged, replace it
.Electric staring gear assy ¢Û
.Contact surface of overrunning clutch ¢Ü
.Bimetallic bushing¢Ý
If scraped, worn or damaged, replace duplex
intermidiate gear, intermidiate gear axle, elec-
tric staring gear assy as a set.
3)Inspection of overrunning:
.Install the electric starting big gear to the run-
ning clutch and fascten the running clutch
.Turn the starting big gear counterclockwise in
direction A as shown on the drawing, the start-
ing big gear wil drive the overrunning clutch, if
not, it indicatas the running clutch is out of
operation, replace it.
.Turn the electric starting big gear clockwise
in direction B as shown or the drawing, the
starting big gear will run in idle speed if not, it
indicates that the overrunning clutch is out of
operation, replace it.
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