WLA Gearbox oil leak

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old man emu
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WLA Gearbox oil leak


Post by old man emu » Wed Mar 14, 2018 6:49 am

I'm getting sick of having to clean the burnt oil from my exhaust pipe underneath the gearbox. Obviously one of the seals need replacing, but I can't find anything on YouTube or in this site's documentation to show me how to do the job, which I believe can be done with the gearbox still in the bike.

I have two replacement seals, Part Nos 2512-41 and 2293-36A (or -41). 2512-41 is identified as item 17 in the diagram, and 2293 can be seen on the right hand side.
Gearbox components.png
Gearbox components.png (533.37 KiB) Viewed 290 times
Which seal would normally need replacing if the oil is going onto the exhaust pipe?

How do you do the job?



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Re: WLA Gearbox oil leak


Post by Doc37W » Wed Mar 14, 2018 4:50 pm

17 is on the clutch side and wouldn't affect the exhaust side. I would look at 13 off the kick start shaft as a possible leak as well as the seal on the sprocket for dripping oil on the exhaust. Also, check the surface that the sprocket seal rides on for imprefections that would rip or tear the seal. Should be smooth for a good seal. Check if there is oil seeping around the studs holding the end cover and sprocket cover. Doc

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