Question about 2004 Honda VTX 1300

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Backfires at decelaration,and popping at steady pace of travel

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Hi, the most common cause of this is an air leak into the exhaust system, check the header pipe gaskets and any other joins in the exhaust system. Another cause can be damaged valves and seats usually caused by not cleaning the valley before removing spark plugs, small stones then fall into the combustion chamber causing the damage. Hope this helps, cheers.

Posted on Oct 07, 2010

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Posted on Jan 02, 2017

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the bike will like backfire/misfire and if i hold the throttle steady it will backfire like 2 times again....and it does this while riding at a steady pace too...it just started it didint do it a week ago. i didnt change anything except a new air filter..fuel screw is 2.5 turns out . the timing valve clearances and everything is in spec. is this a sympton of it being rich or lean? and it doesnt do it on chokeYes, it could (and probably is) be an air leak. Check to be sure the carb is tight in the intake manifold, and make sure the hot-start isn't loose and is sealing properly. Also make sure all of the exhaust system joints are tight, an air leak in the exhaust will make a four-stroke pop and backfire like an old work truck with no muffler...,,,

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