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Wombat 94 rebuild parts

Posted: Mon Feb 13, 2017 6:52 pm
by Bill2001
The last Winter project will be spitting the cases on my Wombat 94. The engine is worn but runs "well".

The piston siezed last year and a new piston was installed and the cylinder honed. I'll reuse that top-end rebuild.

I'm assembling major rebuild parts and will get minor parts as needed.
What is usually needed on a worn engine of this vintage? I have a bearing-seal-gasket kit and SH clutch plates. I plan to get a SH super-duper shift springs. The shifter cover bushings are good and tight. I'll have the crank rebuilt. I'll blueprint the clutch. What other minor parts are usually needed on a rebuild, such as kickstarter rollers and parts?

Re: Wombat 94 rebuild parts

Posted: Mon Feb 13, 2017 7:15 pm
by Bullfrog
Yessir, inspect the kick shaft and kick start rollers for any damage. Make sure you use the heavy duty kick roller retainer on the rebuild.
Ed

Re: Wombat 94 rebuild parts

Posted: Tue Feb 14, 2017 2:53 am
by taber hodaka
Look for pitting on the kick start shaft where the rollers lock------------Clarence

Re: Wombat 94 rebuild parts

Posted: Tue Feb 14, 2017 4:42 am
by viclioce
Also consider new bushings. And don't forget the Yamabond! ; D Victor

Re: Wombat 94 rebuild parts

Posted: Tue Feb 14, 2017 7:41 pm
by Bill2001
The machined "new and improved kickstart roller retainer is part# 994714. It's listed under "engine parts" and not on the schematics. Kickstarter improvements seem to be a good idea.

And check, check, check on the other parts.