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06 CRF250R jets

Posted: Sat Nov 04, 2017 6:46 am
by Redfishwhisperer
I have a new to me 06 CRF250R and can't seem to find anything that compares to what I have found in the carb. There are signs of Tokyo mods (bowl cap, air screw, red timing spring) but I have no idea if they are the ones that put the following in it.
NHFS 4th clip from top
42 pilot
182 main
68 starter
42 leak
I have only ridden it a few times and had an EXTREMELY touchy slow speed throttle response. I decided to check the valves and found the intake bottomed out so I sent them to be reworked. In the meantime I am checking the carb and would like to try and get it close before the head comes back. Any input is appreciated.

Re: 06 CRF250R jets

Posted: Sun Dec 03, 2017 7:22 pm
by crfsonly
Not sure exactly what you mean by "touchy". However, the best jetting we have tested is the JD Jetting.

https://www.crfsonly.com/catalog/produc ... ts_id/1095

Often used bikes have a number of carb issues. AP has a bad diaphragm, floating valve seal is bad or installed incorrectly, pilot jet is clogged, etc.

Ken