I have a Brillelli 46cc with a C&H ignition on a Great Planes Giant Super Sportster. With the plug out it fires good, but won't hit a lick after I put it in and try to crank it.
It is getting plenty of gas and has good compression. I bent the ground prong on an old plug and it will fire strong across a 1/8 gap.
I'm wondering if anybody else has run into this problem and can maybe give me some advice. It's got me baffled and I appreciate any help ya'll could give me.