MB5 jetting

Anyone running a vm20 on a 70cc mb5 kit?

I have a 150 in it and it dies as soon as I rev it up

Re: MB5 jetting

Chris Carleton /

Lean bog?

Re: MB5 jetting

Michael Forrest /

more like a #80 main jet is near correct for a 70cc

Re: MB5 jetting

Dirty30 Dillon /

> Michael Forrest Wrote:

> -------------------------------------------------------

> more like a #80 main jet is near correct for a 70cc

False.

I've yet to see a 70cc bike dip below 100 with a VM20. My chappy with Polini is lean with a 135

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