BP micro engines 3 + boost
 

anyone know anything about this engine?? factory needle settings???
having major issues trying to tune it!!!:cry: has had probably 2 gallons of byrons thru it and just cant get it to hold a tune :cry:
any help appreciated :D

What plug are you using?

Odonnel 97t and JQ the plug

When I ran BP, I never had success with either of those plugs. (I am assuming the JQ is an OS plug). The 97T worked but it just felt lackadaisical, for lack of a better word. And the OS plug is too hot. Try a Nova or Werks #5, if it gets really hot outside, drop to a Nova C6TGC or Werks 6.

The BP's also seemed to prefer an ever-so-slightly rich lowend.