quick question

[Newrider08]

I put in a 42 pilot and a 155 main jet yesterday and it is smoking black on acceleration so its running rich but is it the pilot rich or the main?

[BEAVER.989]

The pilot controls the air/fuel mixture from idle to 1/8 throttle, the main jet covers 3/4 to full throttle. Where does it seem to be running rich?

[Newrider08]

yeah I told myself its the main since its only smoking on acceleration when I stab the throttle and not at idle. idling great.

I will put my 152 main back in and try that.