06 jetteing help pklease

[middleman102002]

so i have an 06 with
LRD pro 4 full system
a pro design intake and foam filter system

i have it jetted at
stock pilot whatever that is i think 42
140 main
1.75 out on idel jet screw
and dyno jet needle on the 3rd clip from top

am i too lean its stuttering and backfire a little off throttle
not real bad

its very close i can tell throttle response is amazing and top end is good so its off just a tad please help

[4TraxRider]

check your plug first, but with a full system you should probably throw a larger main jet in, but call the manufacturer, that is the best thing to do.

[middleman102002]

i did and thats how they told me to jet it i think maybe there wrong though

[4TraxRider]

really...i have a curtis sparks full system, and i called them while i was jetting it to make sure that it was right....i have a 185 main jet in my 450R....This is redrider410 by the way, not 4traxrider

i called curtis sparks and they helped me great, if you are dealing with LRD i would have just called the company direct....just tell them what u have, what you bought for it and what they recommend.

[trx400exxracer]

On our '06 er, we have a Yosh full system, 4"x4" opening in the top of the intake box. We went with a JD Jet kit.

We settled with the 190 main, stock pilot, stock air screw. We also used the JD multi-taper needle in the 3rd (I think) clip from the top. Of course we jetted for the elevation and temperature. That is subject to change before The Orange Crush.

The JD kit comes with two needles and about 5 mains. Very good instructions.

The bike runs clean with no hesitations. Clean off the bottom all the way through. Starts easy too.

[middleman102002]

what altitude are you im 300 feet above sea level

its real close i can tell i have airbox lid removed should i put it back on and cut holes

LRD says it sahould be right but i think there idiots

[middleman102002]

well i called LRD today and after a ***** session they told me what there running on there test bike they have an 06 with airbox lid removed and full pro 4 system

theve jetted it to
165 main
3 turn out on idle mix
stock pilot
crf needle 4th clip

so i tried it and its awsome no bogging and it hauls ***

so if your having problems jetting your 06 witrh LRD pro 4 system try this