Vintage Dirt Bike Q & A

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 Post subject: 01' YZ426 crank gear
PostPosted: Sun May 15, 2016 2:30 pm 
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Joined: Wed Mar 23, 2016 5:54 am
Posts: 12
Hi all,
Have a 99' YZ400 stopped running (rather abruptly I might add, but that's another story)
case numbers show the motor to be an 01' 426 (J308E)
pulled R side cover off and found clutch basket came apart and took some other gears w/it.

Issue,
Idler gear is cracked, can get one just about anywhere NP.

On the crank there are 2 gears, 1 is the primary drive and runs off the clutch basket gear.
the inner crank gear drives the engine counter balance/water pump drive.
this inner gear came apart as well, I cannot find one to match mine anywhere.. all the ones I find are for a keyed crank shaft.
Mine is splined.?!? Aftermarket crank ??

Love the bike and would like to put it back together, cases appear salvageable after a good cleaning.

Thanks,
HL


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