Re: 706 looses power on long pulls

Posted by Thack on May 11, 2007 at 10:09:11 from (4.161.93.134):

In Reply to: 706 looses power on long pulls posted by cjd12000 on May 11, 2007 at 03:55:48:

Since it does it while climbing a hill that would be during acceleration. If carb is improperly adjusted that will cause the air/fuel mix to burn slowly and combustion is still taking place during the exhaust stroke, and even when the intake valve opens.

The flame front can then travel up the intake and cause a backfire which means you are running lean or as some of the others pointed out you have an obstruction or...it's bad spark timing.

Since you did all the work you mentioned I would look at the ignition. It does it after it warms up. What do the plugs look like?

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