I always thought coils either worked or they didnt? I guess there is a grey area.

yer we had the same problem with my bros 600.. wen u have a good spark plug and a bad coil, you will see a spark but it wont be strong. so the plugs wont burn whats in the barrel. my nc30 back firing tho so im putting some upgraded spark plugs in.

HAHA, ok sins i posted this iv had 3 cdis and 4 engines in ma vfr just got my 4 engine and cdi both running great. also bought my self a smart twin stack looks mint

What have you been at, wheeling?

first engine was restricted and i over reved it and snaped a rocker whitch dropped 4 values in to the pistan.
second engine was a head gasket 7 miles down the road
third was copper shells ripped to bits becouse oil pump got clogged
four engine only problem was the cdi making it bounce at 9000rpm, but fixxed now. this engine i have now thats perfect so far was bought from geoff33.

heres my baby