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Old 12-17-2012, 05:06 AM   #31
divimon2000 OP
Studly Adventurer
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Joined: Apr 2011
Location: Lake Champlain, Vermont
Oddometer: 628
Case coming apart

Getting the starter gears off. This bike uses a couple plastic gears to get to the Sprag clutch embedded in the flywheel. Cool system, first I've seen (when my spring broke this spring).


The twins take apart the case. Eric on the right with the right side cover, Bill on the left. Me shooting.

Cool stuff. I think: Shifter shaft up front, then the counter shaft (output sprocket) then main crank shaft (magnet attached), then the counterweight shaft.

Important to take this apart since the F650 GS engine is known to have blown counter balance seals causing the symptom we had (oil blowing out the breather). Not that we didn't find a better culprit in the piston, but....

Eric decided to pull the bearings and seals here for good measure. Bearings did feel a tad grungy, but not much. Pulling is the next step.
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