Originally Posted by
jpalessi
If its running on at the end of the straightaway its too lean on the top. fatten the top 1 hr at a time till it stops running on, then start leaning the bottom till the idle is strong and steady. idle should not be adjusted more then 1/8 of a turn in either direction from box setting for the perfect tune.
Would running 25% nitro affect adjustment of the bottom? 1/8 of a turn in and mine still seems to be running a bit fat. Idle not steady but drops after a few seconds. After ca. 20 secs the engine stops.