[New Mods For 400 Ex] - ATV Riders Forums - Honda, Yamaha, Suzuki, Kawasaki, Polaris, CanAm, Arctic Cat, Kymco ATVs

Pages:1

New Mods For 400 Ex
(Click here to view the original thread with full colors/images)

Posted by:

:devil I HAVE A 2001 400EX WITH WB REV KIT AND A K&N FILTER AND PRE-CHARGER ,REMOVED THE AIR BOX LID AND ADDED A RENTHAL 14 TOOTH FRONT SPROCKET. I PLAN ON INSTALLING A BIG GUN RACE SERIES EXHAUST, BUT I'M HAVING A HARD TIME FINDING OUT WHAT SIZE MAIN JET TO USE. I RIDE MOSTLY AT AN ELEVATION UNDER 3000 FT. I NEED A LITTLE HELP.

NEW RIDER ON THE BLOCK

Posted by:

buy a dynojet jet kit,,it will solve all your problems plus it comes with directions..

Posted by:

Just go buy a 155 and 158 main and start with the 158. See how it runs. I also installed a 42 pilot jet and man does it start easier. Stock main is a 148.

Posted by: MOOCAZEN

i live in san diego, whats up? if you need a pipe let me know, i can get you a deal, how much were you looking to spend

Posted by:

:devil

money is not an issue, I am most interested in the "Big Gun" race series exhaust. Head pipe and slip on for $ 425.

Posted by: 400MXer

If money is not an issue, get the sparks exhaust...or DUNCAN!!!

Posted by: MOOCAZEN

EMAIL ME AT MOCAZEN@AOL.COM

Posted by: 400MXer

MOOCAZEN

How much longer till you get your motor. I'm excited to see what you think of it. I would have got the duncan, but it was to expensive at the time, so i sent it to fischer cycle, then....low and behold, duncan sends me a sponsorship 4 days later. Oh well...i'm still running the duncan pipe.

Posted by: MOOCAZEN

YOU GOT SPONSORED BY DUNCAN, HOW MUCH DISCOUNT ARE THEY GIVING YOU FOR MOTOR WORK OR THE PIPE, LET ME KNOW

Posted by: 400MXer

25% on pipe and i think on motorwork too.

but they have a list and different products have different percent's off.

But they only give 5% off on Roll products...BUT 25% off on a roll steering stem!!!!!!!!!

Posted by: trx400ex

hey,
thats awesome, how long have you been racing to get a sponsership like that? do you have to race the nationals?

i wish i could get discount on stuff, maybe ill try to get sponsered next year....

Posted by: 400MXer

Actually, the upcoming season is only my second year. And i haven't ran any nationals yet(but this year i'll be going to at least 4) I don't really think it matters how long you've been racing, it's finish's. I've only been riding for 1 full season but i was consitantly top 2. most of the time placing 1st. and that's on a stock motor.

I was so excited when they sent me my sponsorship, I've always been a HUGE Duncan racing fan.

but it's really easy to get sponsored. just send company's your resume with the last years finish's. I've gotten sponorship contracts from, axis, nacs, kandk,legacy atv, and a few others, BUT i didn't take them. i only took the sponsorships of the ones i could use. and those places weren't very big discounts.

Posted by: wscotthougland

I e-mialed big gun when I bought my pipe and here is what they told me:

Dear Scott,
As for the jetting specs you are asking for you should do the following:

Pilot- 40-42
Main- 155-158
Needle- drop the clip one position

This should cover you

Let us know if you need anything else.

Thanks,Mike

I ended up with the 42 pilot and a 158 main. Started with a 160 and it was fine when hot out but too rich for the cold. I ride in southern Indiana, I am not sure the elevation. Have a K&N w/ prefilter but I didn't remove the airbox lid.

hope this helps