VM34s on GS450?

[Guest]

Is anyone running mikuni VM34s on their GS450s? I've just put a set on mine, they've come with the following as standard and I'd just like to get an idea where I should be aiming!

260 main, 35 pilot, 159 Q-2 needle jet, 6DH4 jet needle, 2.5 slide, and 2.0 air jet.

Thanks.

[hannibal]

Aren't 260 mains very very big?

[Ipreohippo]

Yep, much too big I suspect. Hoping to find out what people are running in theirs, if anyone's using them, so I can get a rough idea where I should start!

[Big Rich]

VM34's are too big for a GS450. VM30's would probably be a better fit.

But if you want to give them a shot, Google around for "XS650 VM34 jetting" since there are plenty of folks that put them on an XS650. Than you can try to jet down from what you find there.

[Ipreohippo]

Thanks for the advice Big Rich. As I've already got the carbs, I think I'll give 'em a go! I managed to find a small amount of info on a set of VM34s fitted on a gs450, and a couple of home made graphs a guy made detailing a few combinations of jets and needles, all of which don't seem to be hugely far off what people seem to jet them for XS650s, but its certainly a long way off how they're jetted in their brand new 'standard' state! Hopefully I can get it running nicely enough to ride for the remainder of this years good weather, then I'll probably get it Dyno jetted properly for next summer.