Just general information not specific to any brand...
Have you changed the plug? Do it just to say you did, fought the same problem on a Kawasaki lawn mower. $200 worth of parts and much frustration later ended when I replaced a perfectly good looking plug!
Exhaust backfire is usually a sign of weak or intermittent ignition.
Intake sneezing is usually lean mixture or retarded ignition timing.
When adjusting mixture be sure the air cleaner is in place, any baffling or cleaner box is in place and completely assembled. Learned that one the hard way too!
New carbs are often adjusted too lean. If it is a slide carb, try raising the needle. If fixed jet, compare the original carb jet size.
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Today's Featured Article - It Can't Be Done! - A Tractor Story - by Neil Campbell. I'll never forget the time back when I was a boy baling hay on our Farm in Big Rapid, Michigan. The most memorable event that took place was a trip up the steepest incline on the farm pulling an old New-Idea baler with a pony-motor for power and a haywagon. I had just talked my Dad into buying an old John Deere B with 6-speeds ahead and I was real proud of it, except it was a little smaller than the Case tractor that we normally
... [Read Article]
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