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Fri, Jun 3, 11 at 21:01
| When using the rear tine tiller the engine surges then back to normal then surges again and back to normal. This happens about every few seconds. There is a new air filter on it. I don't know why the engine does this. Any help would be great, thanks in adavance. |
Follow-Up Postings:
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| If it's an older model with an adjustable main jet on the carb, I'd say the screw needs to be backed out a little. Tecumseh's act like that. Otherwise, you have some varnish in the main jet, most likely. |
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| Surging is almost always caused by a lean fuel mixture. If the carb does not have an adjustable jet, it is time to disassemble it and clean it with solvent and compressed air. |
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