Yingang YG125-25, Maintenance Manual

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YG125-25 Maintenance Manual Crankcase, crankshaft and Shift mechanism
17
Pin
1 Apply engine oil while assembling
18
O-ring
1 Apply engine oil while assembling
Check
Check the driving/driven shaft gears for serious abrasion
and pit corrosion; check whether the shift fork is bent and
whether the gearshift drum guiding slot is damaged.
Measure the shift fork claw thickness.
Maintenance limit:
≥
5.80mm.
Shift mechanism
To remove the shift mechanism
1. Removal of left hand crankcase cover(See “Removal
of left hand crankcase cover ").
2. Remove the unloaded rotor assembly, left crankcase
assembly(See “Removal of left hand crankcase
cover ").
3. If only remove unloading gear arm, is not required to
remove unloading gear drum assembly can be
directly drawn outward shift arm combination.
To mount the shift mechanism
Driving/driven shaft inspection
Gearshift drum inspection
Shift fork shaft inspection
Outside micrometer
Pull out the shift arm combination
Mount the left crankcase assembly
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