Help!!! 1984 500 interceptor not starting after carb clean

Discussion in 'Mechanics Garage' started by Tmuff, Nov 28, 2014.

  1. Tmuff

    Tmuff New Member

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    So i recently cleaned out my carbs. While i cleaned the carbs i also decided to give it an oil change, and change the spark plugs. I put the bike back together, and it would not start. I decided to put some gas in the carbs to help give it some help. STILL NOTHING!!! So then i tried some starter fluid. The bike still did not fire up. I am thinking that it may be one of two things. Since the starter fluid did not work my first thought is the spark. I checked the plugs but they seem fine. My next thought is that i put too much gas into the carbs, but when i checked the spark plugs they did not seem to be wet. PLEASE LET ME KNOW IF YOU HAVE ANY ADVICE. Thanks
     
  2. rjgti

    rjgti New Member

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    you may have knocked a wire off the coils when r/r the carbs, check all wiring
     
  3. Tmuff

    Tmuff New Member

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    I checked checked wires. I forgot to mention along with oil change and spark plugs i also had to replace one of the spark plug coils.
     
  4. fortyfive

    fortyfive New Member

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    Can you be more specific with the description of the "still nothing",what does that mean???, nothing, like no power, no crank, no start but there is crank... As each situation has a different diagnosis work thru. Let us know, I'm sure someone here can help diagnose, but more information is required.:cheersaf: Hope this helps.
    check out link from V4Musclebike forum site:
    http://v4musclebike.com/forums/showthread.php?t=14281
     
  5. rjgti

    rjgti New Member

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    so then you have confirmed that you have spark???????????
     
  6. rjgti

    rjgti New Member

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    if not, pull a plug wire and put one of your old plugs in the boot. hould the the plug threads against frame and hit the starter button, let us know if you see a spark
     
  7. Tmuff

    Tmuff New Member

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    The engine cranks, but will not start
     
  8. rjgti

    rjgti New Member

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    read my last post, do it, and let us know
     
  9. Tmuff

    Tmuff New Member

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    Will try tomorrow when i get back to the shop, thanks rjgti
     
  10. rjgti

    rjgti New Member

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    your welcome, lots of talented people hang there hats here. we will help you get it sorted
     
  11. kennybobby

    kennybobby New Member

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    Heart of Dixie Georgia Boys mighta been usin' dat
    Map
    That is a very important clue to this mystery--Is there anything else that you forgot to mention? What was the reason that led you to decide to replace this one coil? Was the replacement coil known to be good, or did you buy a broken one off of ebay? Are the spark igniter boxes known to be good, etc.?

    Do the spark test on all four plug wires to help answer/rule out possibilities...
     
  12. Tmuff

    Tmuff New Member

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    I broke one of the coils trying to pull it off a spark plug. I got the coil at a reliable motorcycle salvage place locally. I will be at the shop at 330 to do the test today, and will post results, thanks
     
  13. squirrelman

    squirrelman Member

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    Even if you do find spark, the wires could be connected incorrectly.
     
  14. Tmuff

    Tmuff New Member

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    So yesterday my friend and i went to the shop, and checked all the plugs and they all had spark. We tried for about 15 minutes to start it. The bike sounded so close to starting, but then let out a loud backfire. Could it be a timing issue?
     
  15. NormK

    NormK New Member

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    What you have not told us, was the bike running BEFORE you pulled the carbs
     
  16. rjgti

    rjgti New Member

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    good ? normk, I do not think he did
     
  17. NormK

    NormK New Member

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    This changes the game altogether, could be anyone of a dozen things, it is not simply a runner that he pulled the carbs off and now can't get it started which was what was originally implied. Timing won't be a problem unless somebody has dicked with it. The backfire could indicate coil wires crossed but who knows, it is a case of you have to go right back to the start and check everything, start with compression check and work forward, check timing, all this sort of stuff you can't do running down to some shop for 15 mins at a time, this is serious work and why mechanics spend years learning their trade
     
  18. Tmuff

    Tmuff New Member

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    The bike was running (poorly) before i removed the carbs. If i had more than 15 minutes i would have spent more time on it .My truck is getting a lift and tuned, so i do not have any wheels right now, so i am relying on friends for rides.
     
  19. Tmuff

    Tmuff New Member

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    The next couple days i have meps, so i hope on Saturday i am able to do as NormK suggested and start from the beginning and check everything. I will post an update after i do so, thanks
     
  20. VF-Scott

    VF-Scott New Member

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    Double, triple, quadruple check the plug leads are on the right way round. If you have a spark on all cylinders and even starter fluid gives you no bang then the plugs have got to be off!

    For reference...
    [​IMG]
     
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