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About Jan Ringnalda
Expertise
PLEASE NOTE: PLEASE READ THIS!!! I can help with questions ONLY on any Honda CBX-1000 motorcycle, only 1978 to 1982. OR 1981 to 1983 Honda CB1100R models ONLY Honda CBX/CB1100R motorcycles, Please NO other makes, no other models. IF YOUR QUESTION IS FOR ANY OTHER BIKE Your question WILL BE FORWARDED TO THE QUESTION POOL WHERE IT MAY NEVER BE ANSWERED.

Experience
Have owned over 50 of these fine Honda motorcycles

Organizations
International CBX Owners Association, SAE, Materials Research Society

Publications
CBXPress

Education/Credentials
PhD in Materials Science, Post-Doc in prototyping automotive components

You are here: Experts > Shopping > Motorcycles > Motorcycle Repair > cr 80 fouling

Motorcycle Repair - cr 80 fouling

Expert: Jan Ringnalda - 11/2/2009

Question
i just bought a cr 80 and when ever i ride it the plug will foul... (it will foul from 30 seconds to 3 hours) (litterally)

is there a problem with the jet engine settings or do i need a new cdi ignition??

Answer
First check that you are using the correct oil/gas mixture for your bike. Then I would verify the jets in the carbs have not been messed with; this can also cause plug fouling, then lastly you may need to check the piston rings and cylinder for scoring. Loss of compression can also cause plug fouling. I would not imagine the ignition will be the problem, it either works or doesn't; and it sounds like yours works. Good luck,

Jan

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