7 replies to this topic

[bryan 110]

Turns over great, has spark.nice blue spark pops a few times but will not run? What's wrong


I put. New points in new wire harness checked 4 times to make sure wiring was hooked up right.

[larrybl]

Timing? Fuel? Air Leak? Flywheel key? Bad Cap?

Edited by larrybl, July 25, 2015 - 08:37 PM.

[dthomp17]

Was it running before you put in the new points and wire harness?  For the engine to run, it has to have decent compression, a good hot spark, and the right fuel/air mixture at the right time.  Does it have compression?  Will it run briefly if you spray a little starter fluid in the throat of the carburetor? If you're getting a good hot spark and it won't run when you spray starter fluid in the carb, then you may have a timing problem or low compression. If it does run briefly with starter fluid, then you probably have a fuel system problem.

[Lmiller3358]

Timing? Fuel? Air Leak? Flywheel key? Bad Cap?

Stuck valve ?

[bryan 110]

Going to check the compression . No it didn't run befor this. Timing should be set right I didn't touch that part of it. Heck I haven't even opened the engine. Just kind of going by the po "it ran when we parked it". Why I changed the points and redid the wiring is because it went through a small fire and the harness got melted but not hot enough to burn the coating off. So I just changed it to be safe. Any ways I'll look into the suggestion and let you guys know what happens

[larrybl]

If I had a nickel for every time I had read or heard "Just kind of going by the po "it ran when we parked it"." I would be hanging out in the CUT section by now.

[bryan 110]

I would be right there with you but I was told out of the two I got from the guy that the original was the runner and the 102 was a parts machine low and behold I think it was the other way around. 102 needed a air cleaner and a head gasket. Runs fine. Original well still playing with it. On my way to check compression. And run a few more tests

[bryan 110]

Just a stuck valve. Compression is really good. I'm going to re build the carb because it's not sucking the fuel very well and replace the gaskets inn the carb.