bike wont take fuel

Discussion in 'Electrical' started by nascar7613, Jun 17, 2014.

  1. nascar7613

    nascar7613 Active Member

    218
    28
    3
    This bike is not a Harley. It is a 2005 Hell Bound Steel chopper with a 117 S&S sidewinder engine, S&S Super G carb and S&S IST ignition system. Rode the bike for 75 miles or so, no problems. Stopped for a couple hours at a friends house. Came back out, started the bike, ran fine for a mile or so. Stopped at a stop sign and when I tried to take off the bike stalled. Started right back up, but would not take fuel. If I tried to take off it would stall. The bike will idle all day long, and I can slowly give it throttle until the engine is running about 1500 rpms, after that it stalls. Took off the carb and disassembled it, very clean, no signs of any problems. Getting fire at the plugs, although the plugs are black. It seems to be an electrical problem to me, but I cant find it. Just thought someone here might have some ideas.
     
  2. stray dog

    stray dog Junior Member

    443
    26
    0
    when you look in the carb and twist throttle, is it squirting gas?

    accelerator pump??? I'm kinda fishing here.
     
  3. Jack Klarich

    Jack Klarich Expert Member

    18,544
    153
    399
    The plugs are black= too much fuel, recheck the carb adjustments pay attention to float height
     
  4. Jack Klarich

    Jack Klarich Expert Member

    18,544
    153
    399
  5. stray dog

    stray dog Junior Member

    443
    26
    0
    Guess I was thinking the plugs were black before the problem and not a flooding condition.

    Are the plugs wet with fuel?

    I'm not thinking electrical if the bike is idling tho.
     
  6. nascar7613

    nascar7613 Active Member

    218
    28
    3
    The accelerator pump is shooting fuel. I dont know if the plugs were black prior to this problem. What makes me think its electrical is that it happened all of the sudden, there was no forewarning at all.
     
  7. Jack Klarich

    Jack Klarich Expert Member

    18,544
    153
    399
    Is this an EVO bottom end with nose cone ignition module?
     
  8. nascar7613

    nascar7613 Active Member

    218
    28
    3
    Well, it looks like an evo style nosecone, but there is no module or anything inside, no wires coming out the bottom. The ignition module is an s&s IST which stands for intelligent spark technology. The plug on it looks like the plugs that go into an ecm, it has a crank sensor, and it has a plug that looks like the diagnostic plug on a harley.
     
  9. hobo55

    hobo55 Active Member

    306
    26
    1
    S&S carbs you don't need to use the enricher after short stops, Mine I used it on the first start of the day only.
     
  10. stray dog

    stray dog Junior Member

    443
    26
    0
    Weak ignition?
    inspect plug wires, connections, new plugs.
    check power source, coil.

    would sensors have this type of problem, or would idle be affected also?

    I'd start with easy stuff first (new plugs).