[04 crf450]

i have an cr500 with an pro curcuit pipe on it and the person who put it on did not jet it, does anyone know what the jets should be?

[124]

How does it run? What does the plug look like over running conditions?

[04 crf450]

it runs really rich it won't clear out it starts up and it will clear out in neutral once and then the plug loads up and then it wont clear out at all, i rebuilt the entire engine and replaced the crank seals, thinking it was low on compression and the right side crank seal was leaking, so i think the only thing it could be is the jetting any suggestions?

[oldtimer]

Has to be in the carb. If you had a leak in the motor should have run lean. Check Eric Gorr’s sight for typical problems with your year of 500.
http://ericgorr.com/techarticles/HONDAFMWEB.htm

This guy is my 2-stroke guru! You can spend a moth reading on his sight.
http://ericgorr.com/index.html

[124]

Have you inspected your reeds?

[04 crf450]

i'll check eric gore's website, and i'll check the reeds again i don't remember if they were cracked or cloged