by bgsengine » Wed Jul 30, 2014 5:49 am
Pull muffler and check rings, cylinder condition, and exhaust port for plugging , check muffler itself for any restrictions.
if nothing found there, try a new plug.
If you get a spark - *ANY* spark at all , from ignition system with an inline spark tester and plug under compression, you got *plenty* of spark... don't matter what the color is.
If you find nothing with the cylinder bore or rings (use a small screwdriver, carefully poke the rings and make sure they are not stuck) , and no scoring or damage or burned up piston, and no muffler restrictions, only other thing to try is compression test to eliminate plain old worn out rings
Other than that if you got good compression, you got spark, then only other things are fuel and air - so with plug being wet, it *could* be flooding out (too much gas) and there'll be gas in the crankcase that can also make it hard to start , even if a carb problem has been fixed.
How poor are they who have not patience. What wound did ever heal, but by degrees? - Iago (Othello Act II, Scene 3)