Briggs and Stratton 4.5hp not priming


Old 11-24-12, 09:48 AM
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Briggs and Stratton 4.5hp not priming

Briggs and Stratton 10H902 on a Murray push mower. Cleaned carb, replaced diaphragm, tested primer bulb while not attached to gas tank, it works just fine, changed gas in tank. Nothing doing when everything is put together.

What have I missed?
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Old 11-24-12, 11:06 AM
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Sounds like maybe something got stuck in one of the check valves or something is out of place with the diaphragm. Did you put the diaphragm on the tank, then the gasket, then the carb?

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