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firing order for 82 maxim xj550?

Discussion in 'XJ Technical Chat' started by chaos15, Jan 19, 2007.

  1. chaos15

    chaos15 New Member

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    Re: dirty plugs....

    I recently purchased a 82 xj550 maxim and think the wires were tinkerd with. Can u tell me the firing order?
     
    chaos15, Jan 19, 2007
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  2. chaos15

    chaos15 New Member

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    Re: questions about an fleabay find

    can anyone tell me the firing order for a 82 maxim xj550
     
    chaos15, Jan 19, 2007
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  3. SnoSheriff

    SnoSheriff Site Owner Staff Member Administrator

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    Re: dirty plugs....

    chaos15, don't cross post, don't hijack the posts and don't post duplicates. If you can't find the answer then start a proper new thread. Please follow these site rules http://xjbikes.com/Forums/viewtopic/t=203.html

    Moving your question to a new thread... Thank you.
     
    SnoSheriff, Jan 19, 2007
    #3
  4. Robert

    Robert Active Member

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    Hey there bud, I am not versed with the 550's so I can't say for sure. The 650/750 are set up to fire off on 1 and 4, then 2 and 3. Assuming your 550 runs on similar ignition engineering, you should be good if you line up tdc and get a spark on 1 and 4. Rotate the engine over once and 2 and 3 should fire. Best I can do with what I have. Hopefully one of our 550 whizes will provide the requested data. Welcome to the forums and do mind the local patrolman, looks like you met him already.
     
    Robert, Jan 20, 2007
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  5. bosozoku

    bosozoku Member

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    Re: questions about an fleabay find

    The ignition fires the outer two and the inner two cylinders each as a pair, so it's 1&4, 2&3, 1&4, 2&3 to fire all four cylinders (720 degrees of crank rotation), with an ignition event every 180 degrees.

    One coil supplies spark to the inner pair, the other to the outer pair.

    Most bike four cylinder ignitions work this way, with only two coils supplying spark to the 4 cylinders. There's a waste spark on the exhaust stroke, so you can't be 360 degrees off.

    As long as each coil is going to either the inner or the outer pair of cylinders, there can only be two possible ways to connect them.
     
    bosozoku, Jan 20, 2007
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