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Old 04-18-2013, 02:45 AM   #12
Beastly Adventurer
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Joined: Jun 2008
Location: morgantown, wv
Oddometer: 2,278
Originally Posted by clicheche View Post

also, do i have to disconnect the chain in order to loosen the crankshaft?
or just loosen the crankshaft?

1980 yamaha enduro 175cc
huh? loosen the crankshaft? i'm assuming this is a typo/misspoke/etc...

you mean countershaft seal? remove rear wheel, move chain off front sprocket. bend lock tab on frt sprocket. remove nut. remove sprocket. remove/replace seal. you may want to bend locktab and loosen frt sprocket nut before you remove wheel/chain so you have something to hold the frt sprocket from spinning..

there is a bushing the countershaft seal rides on. you may want to replace, or at least flip it around if the seal has worn a big groove in it.
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