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Old 02-23-2008, 12:28 PM
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Norman Norman is offline
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Join Date: Jan 2008
Location: pampa texas
Posts: 1,367
Default Re: performence and ride?

Do you guys have spark plug abrasive blast cleaner?
I found out that if the plug gets dirty, carbon, oily etc it will run, but not real well, up to the point of dieing and will not start. I found this out playing with my lights the bike ran good with the old lights and I put on the new big light and I start having trouble the bike would run get sort of warmed up, then start acting up. light off ran good, lights on run then die.
I know the wrist pin bushing is going bad along with the spark plug problem.
So I check out the coil it checks out and the plug wire checks out even changed out the plug wire, then I went after the wiring which is inside the frame I figured I got a wire bare somewhere and shorting out. It will run with the light off but not long with the light on.
To make a long story short it was the china plug fouled out I cleaned it with the blaster and it now runs like a champ. I know carbon will conduct electricity. Off the wall, the wrist pin bushing is putting out microscopic particles of brass and the combination of these is allowing the plug to fowl out along with idling it to much playing with and adjusting the light etc.
After cleaning the plug I have yet to fowl it out again. I found out it was the plug by simply changing out the plug. Funny thing the plug that fowled out would show a spark when out of the cylinder and laid against the head, pushing the bike I could see a fairly good spark. Put the plug in the cylinder and no fire. I ran into this years ago with plugs that will fire in normal atmosphere but not fire when under combustion pressures. So next time you have one of your engines not wanting to run change out the plug even if it looks good cause it might not be( but if you blast clean it, it should be good). I could of saved myself a lot of chasing if I had changed the plug or just cleaned it well. So I am still on the original spark plug.
Something else you have to be sure to get all the nasties out of the plug before you reuse it, threads and inside the plug if you don't the abrasives will eat the engine up. I use high pressure air and carb cleaner with a wire pick then clean the threads and a dab of never seize on the threads. Don't forget to gap the plug to your favorite gap.( before you put on the never seize)
Norman
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