250cc 4 valve Grom Clone

[warrenpeas]

Originally Posted by Thumper

That is one seriously musclebound Grom clone.

It looks gnarly, probably rides that way too

Nice

im having difficulty getting it tuned. first i tried a 28mm PE carb i think is too small and my wideband gauge was telling me the main jet needed to be 100 or 105 which i cant understand at all so today i put on the 32mm pwk and im getting closer with a 130 main jet