Spark plug keeps fouling?

Discussion in 'The Workshop' started by WWOOTT, May 3, 2020.

  1. WWOOTT

    WWOOTT New Member

    Messages:
    8
    I don’t even know where to start
    The problem I’m having is that my bike starts and will idle for ever but when when u giv it some gas the bikes bogs out and I needa a new plug in order to start it again and it’s literally rinse and repeat I could probAlly ride 50ft with a new plug and then it cuts out.

    I’ve tried:
    Adjusting the a/f mixture screw
    Changed the reeds
    Down jetted to a 80,85,90!!!(95 used to be perfect)


    Setup:
    Zip lc
    Aluminum 70cc
    Mhr crank
    Dellorto 21mm
    Mvt Inner rotor
    S6 r1200
    S6 intake kit (short manifold and reeds)
     
  2. milo2025

    milo2025 Trip to Trumpton

    Messages:
    727
    Still sounds like she's running too rich. What colour is the plug?
     
    Last edited: May 3, 2020
  3. WWOOTT

    WWOOTT New Member

    Messages:
    8
    With the 95 it was A nice light brown that it should be
    The other jets i don’t think it was in long enough to change and coloring
     
    Last edited: May 3, 2020
  4. MARSH

    MARSH Whooooo!

    Messages:
    3,266
    Rides:
    Piaggio Typhoon
    Choke stuck on ?
     
  5. WWOOTT

    WWOOTT New Member

    Messages:
    8
    Checked that even change the carb to a 19mm and it was still the same thing
     
  6. WWOOTT

    WWOOTT New Member

    Messages:
    8
    B4 it started fouling I mixed my own gas and didn’t use any measurements jus dumped some oil in the gas and shook the bike (i was stranded and needed to get home and a stranger stopped and shared some of there straight gas with me) and it was way to much oil because the oil was dripping from the pipe. I hav drained the tank and jus put mix gas from the gas station back in. I’m thinking that’s it. I don’t why I’m just thinking of it but I’m going to take off the tank and clean it out than put it back on
     
  7. scubabiker

    scubabiker NITROJUNKIE

    Messages:
    7,321
    Yeah that could be it.
    What air filter you running?
     
  8. WWOOTT

    WWOOTT New Member

    Messages:
    8
    Polini straight air filter

    Item no.: P203.0081
     

    Attached Files:

    scubabiker likes this.

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