Hi I just bought a inner rotor kit off eBay, I 125cc four stroke,, fitted it n couldn't get spark from it, so I left the cdi box on it n put the old,original,stater plate n magneto on,my bike goes but fouls the plug after. I give it a gut full,do I need a hotter plug and is it a better cdi box
Motorcycles
Answers & Comments
You can "read" your plug to see what your mixture is.
Too rich and the plug will foul, too lean and the plug will over-heat.
Leaking oil ring(s) and the plug will be gunked-up with burnt oil.
Suggest not deviate from the factory plug heat range.