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Message started by Justinmkantor on 04/19/10 at 22:32:48

Title: question for any experienced wrenchers out there
Post by Justinmkantor on 04/19/10 at 22:32:48

So I have a question. I installed the Mikuni VM roundslide 34 in my bike ands runs well. The only issue I have is right off the throttle it bogs down some. Worst when cold, mild when warm. I know there are accelerator pump called "powerpumps" which replace the float and increase fuel pressure and decreases bogging. I have not found anything for the VM roundslide. Any comments or suggestions?

Title: Re: question for any experienced wrenchers out the
Post by LANCER on 04/20/10 at 02:35:33

Did you check to be sure the float level is correct ?

Also, what needle jet and jet needle does it have installed ?
Many of these carbs were used on racing bikes, some 2 strokes, and they change the jet and needle for a MUCH RICHER MIX, and that will totally screw up the mix for a stock LS650 engine.
You can go to the Sudco website and look up the stock needle and jet #'s for the 34 VM. I have it in the dealers book but it is in the garage and I don't have it with me right now.

I found it, I did download the catalong before and forgot I had for a minute there.

needle jet: 159 Q-2
jet needle: 6DH4
sllide: 2.5
air jet: 2.0
float height: 22-24mm
main jet: try a 180
pilot jet: try 17.5 or maybe 20 ... you can go down to a #15 if you need to

Title: Re: question for any experienced wrenchers out the
Post by Justinmkantor on 05/01/10 at 13:09:50

needle jet: 159 Q-2 (Whatever came with it from the lancer kit)
jet needle: 6DH4 (Whatever came with it from the lancer kit)
sllide: 2.5(Whatever came with it from the lancer kit)
air jet: 2.0 (Whatever came with it from the lancer kit)
float height: 22-24mm (adjusted to this level)
main jet: 180
pilot jet: 17.5