Jump to content
Sign in to follow this  

what carb setup would u recommend?

Recommended Posts

i have an 09 yz250 with sst pipe, and fmf titanium 2 silencer. no other major mods, one tooth bigger in rear. haven't messed with the carb yet. what would u recommend for this setup? im in the pacific northwest from about 2200 to 5000 ft and range from 40 to 90 degrees. never jetted a carb and just need some advice on it. thanks

Share this post


Link to post
Share on other sites

JD jetting kit, best bang for your buck! Red needle, 45 pilot, 172 main. 1-1/8 to 2 turns out on the air screw. Best 70$ you will spend on your bike.

Share this post


Link to post
Share on other sites

I personally think that you can get better performance by buying the right jet, the JD kit is good and leans out the bike, but I don't think that the jets that they provide can cover the wide range of elevation on this continent properly.

If you take the time to jet the bike one jet at a time, one size at a time, you could probably get better performance.

Just my theory anyways, as I have not tried the JD kit only read about it.

Share this post


Link to post
Share on other sites
I'm still convinced that the jetting chart is a wicked starting point and if you follow it for your temp/elevation your going to get awesome performance. But it won't give you instructions for perfect tuning/performance.

that's what the trial and error is for IMO but using the chart as a baseline.

Share this post


Link to post
Share on other sites

so i bought the jd jetting kit, v force 3 reeds, and the powercore 2 silencer to match my sst pipe. the jd jetting kit doesnt come with pilots....guess ill have to order a couple and start playing around. anyone have a link to the a thread about what my spark plug should look like?

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Reply with:

Sign in to follow this  

×