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Why is my Susuki GS 750 backfiring?

My motorcycle runs rough.

asked by M85 (170)

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Tags:  motorcycle  why

answers

Either your spark plugs are fouled or your carburetor is dirty. Anouther possibility is a cracked intake boot. This allows it to suck way to much air. I'd check the carbs first, specifically the pilot jet (smallest one) and clean it entirely.

reply
posted by jon40 (413)
5 votes

Make sure your air/fuel mix is correct and not rich. Also if you have an bike with a vacuum operated petcock check to see it isn't leaking.

4 votes

Backfiring is typically caused by the motorcycle running to rich, you'll need to adjust your carb as necessary to lean out the air fuel mixture.

2 votes

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