Author Topic: spark plug  (Read 1706 times)

ironmidget32

  • Newbie
  • *
  • Posts: 1
  • Karma: 0
    • View Profile
spark plug
« on: November 26, 2011, 02:25:28 AM »
I keep fouling plugs, any advice?

hoodlum

  • Administrator
  • Hero Member
  • *****
  • Posts: 857
  • Karma: 11
    • View Profile
Re: spark plug
« Reply #1 on: November 27, 2011, 05:40:53 AM »
fix your jetting would be my first thoughts.... What fuel/oil ratio are you running? It could also be a weak spark.... Are the plugs black with spooge on them when they foul?
Hoodlum

DMoneyAllstar

  • Newbie
  • *
  • Posts: 15
  • Karma: 2
  • Hello. My name is Dan, and I'm addicted to buggies
    • View Profile
Re: spark plug
« Reply #2 on: November 30, 2011, 07:12:39 AM »
Need to know...

0. Stock engine, or using a sled engine?

1. What plug are you running (and fouling) -- NGK BR8ES or BR9ES (Autolite 4063 & 4062, resp)?  What Hoodlum said...what does the business-end of the plug look like?

2. Location (climate & altitude)

3. Stock carb?  What main jet you running?  What is your air screw at (# of turns out)?

4. Mods on your engine, or stock?  Tuned pipe?  Port work?  Water-cooled?  Etc?

5. What fuel/oil mix?  Fuel octane?  What oil?

6. Have you ever done an air-leak test?  Compression test?  Plug-chop?

7. Made any recent changes or adds to your setup?

8. It just start fouling plugs recently, or is this a new-to-you buggy?  New to two-strokes?

(I feel like the BMV person right now, ha)

Most likely your carb / fuel setup.


-Dan
'85 FL350R Odyssey
'88 LT500R Quadzilla

Corn, beans, wheat, and trees - no sand!