Hi mate,
If you've had the starter off I strongly recommend replacing the o ring. There are 2 o rings on the manifold too. A small one and a slightly larger one. These ones wear out less frequently BUT it's worth checking. Also the spring washer on the manifold could be worn out. May be worth checking that out later if nothing else works.
Biggest question though is do you have spark? If not try disconnecting the kill wires and see what happens.
If the rubber boot on the kill pin is worn it MUST be replaced. When the rubber boot is work either kill switch will not work and you will ALWAYS have spark OR you will NEVER have spark.
Test out your decomp valve (attach clean fuel line and suck on it. If it closes then it's OK). After that think about the head gasket. If that doesn't fix it keep it for parts and get another one. These engines are fantastic but a dime a dozen so don't waste too much time and money getting one to work.
90% of the time I find it's either a leaky primer cap O ring, leaky starter o ring or incorrectly fitted/damaged kill wires.
Good luck.
Pete.
Thanks Pete ,plenty of spark. I'm getting a lot of leakage around the primer. I don't know why because I have used a new primerplate,o ring, float and float pin(I forget the proper name). I have also changed carbs. I said earlier it was a G4 but now I think they are LM.
The O rings on the starter and manifold looked ok but I will change them as soon as I can get new parts. The spring washer seemed to be ok
At the moment its the fuel leak that has me baffled.
I have new rubber boots on the wires
I think I also have dry spark plug, meaning its not getting fuel into the combustion chamber, so insufficient vacuum me thinks.
Rosco
