[Cubpwr1811]

Well, I switched fuel pumps and had no luck, so I removed the carb again and checked the needle valve. Cleaned the carb all up and blew it out with air. Pulled the intake & cleaned and blew it out. I put it all back together and was able to get it to start, but not very easily. It ran for about 10 minutes or so and sounded pretty good. Then while I was trying to fine tune the new carb I went a little too far and it shut down. After that it wouldn't fire again. If you let it cool, you can sometimes get it to start again.

I did notice yesterday that I have an orange spark in one cylinder and the other had some orange with a little blue. So now I'm leaning towards a weak/failing ignition module. How do you test them to make sure that is the problem?