Engine mounting bolts for '78

[MOonRocKs]

I need the sizes for engine mounting bolts. I've been looking through threads and have found some info, but I'm still having a hard time with specifics. If anyone has a diagram even with part numbers that would be great. Thanks!

 

[5twins]

This might help, but since you haven't stated a model year, it could be wrong. Some of the bolts appear to still be available, some not .....

http://www.boats.net/parts/search/Yamaha/Motorcycle/1980/XS650G/FRAME/parts.html

 

[MOonRocKs]

1978, but actually now another quick q: in reading the product serial "90105-10139" I refer to the second set for sizing. It would state, metric10 by 1 or "I" for pitch (I can't find a metric 10x1 pitch...) by 39 for length? Or do I read otherwise?

 

[TwoManyXS1Bs]

Here's a couple of threads that discuss deciphering those part numbers:

http://www.xs650.com/forum/showthread.php?t=4386
http://www.xs650.com/forum/showthread.php?t=33606

 

[MOonRocKs]

¡gracias!