RE: Question about breakin process
You should lower the idle with the "idle" adjustment screw on the carb.. Using the trim is just a quick fix (and usually only used to "increase" the idle to get it to stay running) and should be set back to "neutral" trim as soon as you get the idle corrected with the adjustment screw.. If your seeing alot of raw fuel coming out the exhaust pipe, you have it set plenty rich.. Your not seeing alot of smoke because your not revving the engine up much.. You should really use a temp gun or the "spit" method, to make sure the engine is reaching proper breakin temps.. Running them too rich during breakin is just as bad as running them too lean.. (and some say can actually cause catastrophic failure of the connecting rod, as soon as you start running it hard, if run too cool during breakin.) But just follow the manuals settings for the high and low speed needles, during breakin, and you should be fine.. Hope that helps out your breakin process a little!!