Online: PhillAv, beaglebasher

Oddly misfiring 99 dyna

  • Superglidecustom
    Superglidecustom
    2 years ago
    Good day riders
    My tc88 is misfiring oddly for a few seconds 2 to 3 times a day, it got drenched in the rain few days ago in Darwin, started with trouble, but came good, now it'll be normal and out of the blue shell misfire, usually under throttle, no water in fuel, feels electrical, gonna try new plugs, has mikuni and cams and commander unit, goes like stink up top, really like it, any ideas brothers
  • John.R
    John.R
    2 years ago
    My guess is coil.
  • speedzter
    speedzter
    2 years ago
    Hard to diagnose remotely.
    Start of with the cheap parts, spark plugs, leads .
    Also pull the float bowl, check fuel filter, check vacuum fuel tap function.
    What's a "commander" unit ?
  • Grease Monkey
    Grease Monkey
    2 years ago
    PCIII I reckon speedzter
  • speedzter
    speedzter
    2 years ago
    He does say it has a Mikuni ?
    Pretty sure Dynojet don't make anything for a Carb'ed bike ? (other than jet kits !!)
    I'm thinking it may be an aftermarket ignition module.
  • paulybronco
    paulybronco
    2 years ago
    Ummm .....power commander and carby......???
  • Grease Monkey
    Grease Monkey
    2 years ago
    Fuck, dumb moment lol
  • Superglidecustom
    Superglidecustom
    2 years ago
    Thanx to all, im a Harley novice, so if I sound dumb I probably is. Ride on



  • ratly
    ratly
    2 years ago
    Same problem on my 1994 fat boy  , cutting in and out, gradually getting worse, new ignition module fixed  the problem,