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Old 12-05-2012, 10:45 AM
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dutch1 dutch1 is online now
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Join Date: Dec 2004
Location: Jayhawk
Posts: 2,196
You've got 2 of the three essentials covered--air and spark. You likely have a fuel delivery problem--replace the intank fuel filter, check your fuel lines for any soft spots/air leaks. Have you checked your tank vent--you should be able to suck air through it--if the tank vent is not operating properly, you'll develop a vacuum in the tank that the carb cannot overcome when attempting to pump fuel.

Have you cleaned/removed the muffler screen?

Check for air leaks in the intake area. I've seen a few isoblocks develop cracks that expand after getting hot.

Just a couple of thoughts.

Other than the above, look at a carb rebuild although since you say it will run for 15 minutes, I doubt that the carb is the problem.
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