Originally Posted by
stefan
I'd say it's way to lean on the bottom.
Picco carbs need to be rich on the low end needle and VERY important, those composite carbs need a few laps to heat up.
If you adjust a Picco carb too early, you'll lean it out and kill it.
Run at least 4-5 laps at race speed, before you attempt any adjustments.
Agree on being rich, but could be lean also. May have to play with it on the LSN. Slowly turn LSN CW. Does it stay at idle speed? or rises then stalls? Rises then stalls too lean. Hotter the temp, the leaner it gets,