Question about Briggs & Stratton Intek Snow Horizontal Engine 7.5 Hp, 1in. X 2 27/64in. Shaft, Model# 12D412 0009 E1

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Briggs & Stratton 7.5 HP Intek engine on my Sears Chipper Shredder won't start when it is warm. It will start when cold but requires continued recoil starter pulling to accomplish this. Also when it is running it tends to miss under load and loses RPM.

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I would replace the sparkplug making sure it is gapped properly and put a new air filter on the engine.

Posted on Mar 18, 2011

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From your description it seems that the starter is not engaging to turn over the engine. First ensure all the connections of the thicker cables to the battery, starter and tractor frame are clean and tight. If starter motor is turning but still not engaging it will mean that the pinion on the starter motor is binding on the shaft. You can buy a new starter pinion gear from your local B & S agent.
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