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Discussion Starter #1
Hey y'all,
Referencing my other thread: 1997 Big Bear 350 4x4 with broken starter gear boss

It appears that the Big Bear 4x4 YFM350 engines in 1997 and 1998 are the same. The 1999 engine has improved starter gear bosses that are visibly larger (and I guess stronger).

Can anyone confirm that the 1999 case will be a direct swap for a 1997 engine?
Will the engine internals and top end bolt on and work?

Thanks in advance,
Jamie
 

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Will not fit by partzilla statement.
I sent you the link in your other thread and how to cross reference part numbers on partzilla for other applications.
 

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Discussion Starter #3
Will not fit by partzilla statement.
I sent you the link in your other thread and how to cross reference part numbers on partzilla for other applications.
Thanks Jim,
I had trouble interpreting the Partzilla info about engine cases so wasn't sure. I meant to thank you in the other thread as well but got side tracked.

I appreciate your responses.
Jamie
 

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I pulled up the 1999 crankcase assembly number and it does not go in a 1997 or 1998...but will go in a few later year models...nothing earlier.
 
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