i have 2 new b5 2010 carb engines both with 2057 pipes.installed on mine and sons buggies.

p3 glo plugs.
30% nitro.

followed werks break in proceedure to the letter.
after following werks tuning proceedure after break-in,motors wont idle correct.seems no matter how much you chase the needles.its either too lean,or rich.

2 stage idle is the best i can get to keep them running.

i did by a b6 used motor from a guy at track.

i took the carb from the b6 and installed on 1 of the new b5's.
it tunes much better but still lean or rich on ls.

any help would be great.