Questions for the Yamaha triple fiends.

[dorcy]

I just picked up a 1978 xs750 and there have been hints that you can put the xs850 cylinder and head on this bike as a direct bolt-on. People have been talking about boring two of the cylinders to fit the xs1100 standard pistons and keeping one cylinder standard sized xs850 piston to turn your 750 into a nine hundred. Is this true? if so salvage yards and ebay here I come!

Thanks,

 

[hillsy]

Can't say I'm an expert on XS triples, but putting different sized pistons in the same motor just doesn't sound right.

You'd be best off asking these sort of questions on an XS triple forum.

 

[98kellrs]

It's definitely possible, I've got a XS750 bottom end with an 850c heads that came with my new project. That engine needs some work though so I haven't opened it yet to see how it was done. But yes the heads do seem to bolt straight on.

Have you joined www.yamaha-triples.org yet? It's a forum dedicated to the xs triples and heaps of useful info on there

 

[ApriliaBill]

I belong to this site. These guys know every nook and cranny of the triples. http://yamahatriplesuk.myfreeforum.org/sutra2406.php