Hard To Start, 1000ds

Discussion in 'Technical Help' started by idrinkbeer, May 22, 2016.

  1. Ok iv an sc1000s with full system and wasp puk ( power commander,velocity stacks and k&n filters in breathers ) anyhows the bike hasn't had a problem starting before.
    I upgraded the starter cables and fitted a lithium battery , the bike now cranks stronger, but, it won't fire unless I give it some throttle and even then it's reluctant. When trying to fire it smells of fuel and even let's a crack from exhausts the odd time. I removed the plugs and they look blacker than normal and the front ones are moist. When the bike starts it idles and runs perfect and I hit 140mph on the clocks ( closed runway obviously ) iv had tank off checking in case iv knocked a connector loose, iv bypassed the p/commander and it's just the same, iv ordered new plugs but only 4100miles on bike. I fitted the old battery but no help?????
    I'm going to stick it on diagnostics next week but I wondered if anyone can help.
    Could a coil breaking down effect starting but not running ? HELP.
    Stephen

    Ps belts were replaced a year ago, filters are clean, fuel , fresh, bike turns over really well. All fused are intact and relays seem ok ????
    Hot or cold starting the same.
     
    #1 idrinkbeer, May 22, 2016
    Last edited: May 22, 2016
  2. Iridium plugs?
     
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  3. No standard ngk plugs, they haven't been touched. New ngk arriving tomorrow , the fuel pump cycles as normal or sounds like it, when tank refitted and turned on you can hear it purging the air in fuel line .
     
  4. Problem sorted. Will post up later what I found.
     
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  5. Don't keep us in suspenders for tooooo long
     
  6. It appears the battery couldn't power the injectors fuel pump starter etc. so it was firing fuel and fouling the plugs, then when it did fire it was rich and the plugs blackened.
    Discharged and recharged battery and raised resistance to starter. Bike starts fantastic first touch of button it fires instantly.
     
  7. Raised resistance to starter?? :eek:
     
  8. Wooops lowered resistance to starter, should have checked my posts. It looks like my earth may have been compromised.
    Anyhows sorted.
     
    • Like Like x 1
  9. Great news that the problem is sorted :)

    It's equally important to know how it was sorted and what the problem turned out to be though.

    It all adds to the collective knowledge.
     
    #9 Old rider, May 24, 2016
    Last edited: May 24, 2016
  10. I had the same thing with my 1098. The dealer couldn't trace it and it kept flooding. A new 18A LiPo battery sorted it.
     
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