YG125-30A Maintenance Manual
Crankcase, crankshaft and Shift mechanism
95
Do not remove breather pipe joint, otherwise damage will be caused. Generally, do not remove the bearing; if it is
removed, coat engine oil on surfaces of spare parts while pressing it in; mount it with SST and confirm the press-in depth
of the bearing.
Assemble the driving shaft bearing with the with oil seal facing inwards. Disassembling the needle bearing may damage it;
in case it is damaged, always change a new one. Replace oil seal with a new one after being removed.
Notice:
Do not dent the sealing surface, and assemble the driving shaft bearing with the side with oil seal facing inwards.
No.
Procedure
Quantity
Remarks
Removing order
Installation is in the reverse order of removal
1
Left hand crankcase
1
Apply engine oil while assembling
2
Crankshaft bearing 6203
1
Apply engine oil while assembling
3
Driving shaft bearing 6006
1
Let the oil seal side face inward and apply engine
oil while assembling
4
Balance shaft bearing 6301/13/C3
1
Apply engine oil while assembling
5
Crankshaft paper gasket -HK121610
1
Replace it with a new one while assembling
6
Arm stopper bolt M8x41
1
Do not remove it
Disassembly and assembly of right hand crankcase
Generally, do not remove the bearing; if it is removed, coat engine oil on surfaces of spare parts while pressing it in; mount
it with SST and confirm the press-in depth of the bearing. Assemble the driven shaft bearing with the with oil seal facing
inwards.
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