Question about Harley Davidson XLH 1000 Sportster Motorcycles

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Replaced stater,put bike back togeather, and now have flames

Shooting from pipes

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  • paul erickson
    paul erickson May 11, 2010

    couldnt read all of your question

    what is shooting from pipes?


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If you're seeing fire coming out of your pipes, you need to adjust your timing and lean out your carb. It's running too rich.

Posted on Nov 21, 2008

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If the bike was running correctly when it was put in storage two years ago, I would start with the easy things first: As the previous poster suggested, install new, correctly gapped plugs, along with a new battery. Your bike uses an electronic ignition system, and it will not opporate correctly if you have a bad battery. The bike will miss, pop, and backfire, because there is not enough electrical power in storage (battery) to properly run the ignition system.

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My 2008 1200 sportster is back firing and shooting blue flames since i have installed vance and hines short shots. i also installed the power commander 3 and screamin eagle stage 1 filter. Is it normal to...

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1 Answer

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Blimey you really are on the Ball with this request. Do you realise that continuous and repeated deliberate miss firing can and will possibly damage your engine and blow the exhaust system apart?
Why go to all that trouble? When I used to do it I just shut the kill switch off whilst de-cellerating open the throttle a little the turn it back on (Bang/Flames) doesn't do it every time but with practice you can get it most times and the longer you shut off the louder the bang.
This was for OFF ROAD trials only!!!
The reason I have given you the tip above is because it looks a seriously dangerous area you are going into with spark plugs and seperate batteries.
I personally would leave well alone.
Paul 'W' U.K.
Press the Blue button please for rating of my effort!

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