Baja WD250U Service Manual page 175

Main points of reassembly of crankshaft:
The oil traces on crankshaft (1) and crank pin
(2) should be connected correctly, the malposi-
tion of two oil traces should be within 1mm (0.04
in)
17. Driving gear of balance shaft and gear of
balance shaft
Inspection:
• Driving gear of balance shaft (1)
• Gear of balance shaft (2)
If worn or damaged, replace two gears at the
same time.
18. Primary gear and electric starting gear
1) Inspection
• Main driving gear (1)
• Clutch gear assy (2)
If scraped, worn, damaged, replace it
If the noise is overhigh during operation replace
two gears at the same time.
2) Inspection
• Duplex Intermediate gear (1)
• Intermediate gear axle (2)
If scraped, worn, or damaged, replace it.
• Electric starting gear assy (3)
• Contact surface of overrunning clutch (4)
• Bimetallic bushing (5)
If scraped, worn, or damaged, replace duplex
intermediate gear, intermediate gear axle, electric
starting gear assy as a set.
3) Inspection of overrunning:
• Install the electric starting big gear to the run-
ning clutch and fasten the running clutch
• Turn the starting big gear counterclockwise in
direction A as shown on the drawing, the
starting big gear will drive the overrunning
clutch, if out, it indicates 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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