Question about 2004 Honda CRF 250 R
Posted by Anonymous on
Hi, Anonymous and the usual suspects are:
1. Installation of a different camshaft.
2. Different exhaust system or "STRAIGHT PIPES"
3. Faulty advance curve.
4. Multiple carburetors not in sync.
5. Improperly installed jet kit or wrong kit.
6. Carburetor internal malfunction.
7. Fuel mixture too rich.
8. Fuel mixture too lean.
9. Extremely dirty air filter.
For more information about your issue and valuable "FREE" downloads that you will need for viewing and printing please click on the blue links below. Good luck and have a wonderful day.
05 CRF250x flat spot
Honda 2004 CRF250X Service Manual
Honda 2004 CRF250X Owner Manual
Posted on Aug 03, 2017
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Posted on Jan 02, 2017
SOURCE: Flat spot /backfire
Hi and welcome to FixYa,
Initially, pls check the airbox, air cleaner and how the assembly is fitted. Backfire on deceleration indicates lean mixture (too much air, too little fuel). A flatspot could be anything, let's try the air cleaner/box first and proceed from there. Might get lucky to solve both problems with 1 solution.
A favor, I would rather that you please do not rate this solution (yet) not unless it solves the problem. Due to my current rank and rating, even a Helpful would be detrimental to my standing.
Good luck and Thank you for using FixYa. Happy Holidays.
Posted on Dec 18, 2008
WD40 will add to the detreioration of rubber. Use rubbing alcohol to lubricate rubber, whenever you need to move it's position on anything. The solvents in WD40 will start to turn almose all rubber products gummy within a few months of use.
Posted on Nov 23, 2009
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