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  #21  
Old 02-18-2007, 09:54 AM
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Default Re: How do you stop a plug fouling

     

Quote:
Originally Posted by TUK101 View Post
I have a feeling that after you clean the air filter the bike will run longer than 30 minutes on a fresh plug. One thing that I have found out after years of working on 2 strokes is that usually if they are going to foul a plug, it is when the bike is cold, not after 30 minutes of riding. Unless it is stop and go riding and you are running the gas too rich. Get rid of the Castrol quick stop 2 cycle oil and get some good synthetic stuff. You should be able to run 40:1 with quality oil and I would almost bet that your bike runs fine after that. If not, somebody probably jetted the bike too rich for your climate or you have leaky crank seals.

OK<, while I agree with running 40:1 with a good synthetic.. I've said before, over and over, and have in the past even posted the math to prove it.. changing oil mix ratio is a waste as far as changing jetting.. changing from 32:1 to 50:1 is about the same as 1/3 of a main jet size. Not enough to really do anything.

Pick a mix rate you like and then jet, but odds are the proper jetting will be the same either way.
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  #22  
Old 02-19-2007, 01:09 AM
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Default Re: How do you stop a plug fouling

Yes, the fouling could come from a bad stator. Like your primary coil, it can be checked by a resistance test. Everyone that I have ever tested with a simple multi meter that failed the test really was bad, and replacing it worked. However, I have tested some that were ok on the test, but still got weak when hot. Didnt seem to matter when it was tested, hot or cold, it passed the test, but would not keep a good spark as it warmed up.
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  #23  
Old 02-25-2007, 11:26 AM
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Default Re: How do you stop a plug fouling

Change you oil/feul ratio to 40/1 , 25ml oil per litre.
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  #24  
Old 02-25-2007, 11:30 AM
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Default Re: How do you stop a plug fouling

TUK101 has good suggestion go with it, What is standard jetting.
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