HP 500 backfire

[MILD THUNDER]

If it were a burnt valve, it wouldnt be a intermittant issue. Its sounding ignition related to me, since its a intermittant problem. I would double check all connections, and make sure you have 12v at the coil. Could be a bad pickup, or module.

Also, when you replaced the cap and rotor, did you put locktite on the rotor to keep it from coming loose? And your sure there is no moisture in the cap?

 

[donzi2287]

You won't believe it. When I loosened the exhaust and intake valve, I also leaned the carb because I was way too rich. Well, I over leaned it. I richened it back to where it supposed to be, and it is running perfect. The compression came up on 8 cylinder as well. All cylinders are within 8 pounds!! That was an easy fix but also a pain!!!

 

[Geronimo36]

You won't believe it. When I loosened the exhaust and intake valve, I also leaned the carb because I was way too rich. Well, I over leaned it. I richened it back to where it supposed to be, and it is running perfect. The compression came up on 8 cylinder as well. All cylinders are within 8 pounds!! That was an easy fix but also a pain!!!

Glad you figured it out!! :26:

It was showing rich cause that cylinder was bleeding off... Just goes to show that you can only make one change at a time and always start with the stupid stuff first! :blush5:

Frank

 

[Thunderstruck]

Great job, thanks for sharing.

 

[donzi2287]

Thanks again! You are right....one thing at a time!!!! Eddie

 

[MOBILEMERCMAN]

Glad you figured it out!! :26:


Frank

It is nice to hear good news.