'83 XC500 38mm Carb Swap settings?

Okay folks, going to approach the 500 jetting through a touch more air velocity and swap over to a VM38mm

Anyone have the jetting specs for the swap over?

Im at sea level and mild temps but I can adjust for that, just looking at a start point with the 38mm..

Thanx!

HR

:usa:

Is a VM a square slide? USe caution if it is as it is a no no for vintage as per 'da rules. But most vintage aren't that stickler except for ARMHA

I know you know, but I have a hard time suggesting jetting without sayin' it... So I'm gonna say it...

Start rich and work down. "I'm just sayin'."

Anyway, 430 jetting is a surprisingly close starting point for the air cooled 500 with the VM38SS: 40 pilot, 3.0 slide, 6DH3 needle in the middle clip, R-4 needle jet, and 450 main worked REALLY well in my 83 500. Air screw at 2.0 to start.

You may have to tweak this around some for your individual bike, but it works well enough to a) go out and actually ride the bike without blowing it up, and b) run well enough to let you decipher the final jetting changes. I think you'll really like the way the bike runs with the 38. That's a round slide that's legal, by the way. Hope this helps.

Kewl....

Thanx Pic!

Just what I needed and was hunting for.


HR

:usa: