Why Am I losing?

[Dizing400ex]

Hey guys

My buddy and I have 400s. His an 05 and mine an 06.

His mods are sparks timing advance, removed arrestor, WB Rev Box. He DID NOT rejet

My mods are in my sig. Basically the same mods but i have dynojet kit, KN filter w outerwear.

He has about 300 miles on the quad, and mine maybe has 100...

I am jetted at the middle(3rd) groove on the needle and a 155 main and his quad will pull about 2 lengths in 3rd and then we stay even all the way out... WHY???? He weighs about 35 lbs more then me and hes got less stuff done?

The only thing i can think of is that my jetting is off???

Ive changed from the 165 main to 160 to 155 and everytime i go leaner the race gets closer.

Should i start messing with the needle or what??

Is his just more broken in than mine or what?? Help!!

thanks
Dustin

[ss440ex]

Ck and make shure the throttle plate is opening
all the way.

[sickmojave]

Trade quads for a race.. it could be that he's a better rider :ermm:

[bwamos]

Do you both have the same sprocket gearing? And tires/size?

[TacomaNC4X4]

is his red? if so the red ones are faster then the black ones

[wheeltrax]

what about rider weight? i say you switch machines and make a few runs and see what happens

[emaxxjeremy]

Originally posted by TacomaNC4X4
is his red? if so the red ones are faster then the black ones

thats probrbaly the problem:D

[Flynbryan19]

Originally posted by sickmojave
Trade quads for a race.. it could be that he's a better rider :ermm:

This could very well be the case. Reaction time and shifting points can make a BIG difference.

[400exrider707]

Check my post in the 400ex forum

[TRX520RIDER]

I need some help iam looking at beging racing mx i have right now a honda 450r 2005 my extras are as follows sparks racing pipe HRC power kit UNI air filter rev box razr mx tires tag bars blingstar bumper but not put on yet can any one hook me up with a set up with like carb settings for the pipe and gearing plz help got a cocky friend with a YFZ 450 2004 that i wanna smoke PLEASE HONDA RIDERS HELP!

[Dizing400ex]

thanks for the replies guys,

Check out the thread in the 400ex forum if your interested...

Mines red, his yellow

He weighs more and were both the same skill level as far as riding..

Weve been ridin together since we were about 5...

lates

Dustin

[coryatver]

IMO dynojets are junk. I would take that junk out and put in a 155 kehein. To see if it is the rider switch quads and see if you get the same results.

[400exMO]

Originally posted by TRX520RIDER
I need some help iam looking at beging racing mx i have right now a honda 450r 2005 my extras are as follows sparks racing pipe HRC power kit UNI air filter rev box razr mx tires tag bars blingstar bumper but not put on yet can any one hook me up with a set up with like carb settings for the pipe and gearing plz help got a cocky friend with a YFZ 450 2004 that i wanna smoke PLEASE HONDA RIDERS HELP!
Make a new thread in the 450r section.