rst in breaking

iTrader: (2)

picked up a kx80 as a toy which needed a couple of gaskets and from what i can see/imagine the gearbox and engine share the same oil but the gearbox had a leak from the gasket and i think has made the bottom end knock slightly (havnt yet properly looked over it). im wondering how hard they are to get the crank out? and being these bearings:
http://cgi.ebay.co.uk/Kawasaki-KX80-...item2c528c0029
i'd prob be alright with a polish and new bearings? just after a few opinions from people who tinker with bikes, cheers

PAUL V

They don’t share the same oil, the gear box/ clutch has a bath of oil and it is sealed off from the crank area. The crank, main bearings and piston is lubricated by the 2 stroke oil you mix in the fuel.

The KX80 does not have a gasket between the 2 crank cases. The clutch cover does have a gasket on it. There are 2 crank seals but again the one of the RH side stops the gearbox oil getting in to the crank area. The on the LH side stops the air getting in to the crank case.

Ok the KX 80 you CAN NOT change the crank seals without stripping the engine and removing the crank and the main bearings.

I could recommend a good site for getting your engine parts from, but last time i did this i got an infraction

rst in breaking

iTrader: (2)

that would be great mate, is it a big job? it may even be fine just need a better look over the bike but defo has a bad gearbox oil leak

Roosie

iTrader: (8)

yes it is a big job. but ive done one before and its fairly self explanatry

smudger068

after racing these for 3 years and practicing for 5-6 , i went through 3 gearboxes and had all 3 done professionally, twice from a friend of mine. as taking them apart is the easy bit but putting them back together if you dont know what your doing is the hard part. just get it done professionally to be on the safe side

rst in breaking

iTrader: (2)

whipped it all apart today, all easy enough stuff to work on, must have dislodged the kickstart spring though as no kick start , will sort that in the week, bump started it and it shifts, looks to be a 100cc too