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Senior Member
my friend has a '00 400ex, we are getting ready to put in the jet kit, he already has a K&N filter, and e-series pipe. just wondering wheres a good place to start with the jet kit. ive seen one with a 168 main, and one with a 155 main, both e-series pipes, and K&N, where to start.....
-ATV ORF 2 name- PRAY-37
FOR SALE 2000 400ex: nerf bars,AC front bumper, ANSWER bars, brake block off plate, new clutch perch and lever, WB E-series slip on, K&N power kit(165 main with no air box lid), K&N filter(not installed) WB filter with pre-ware,RAZR front tires,RAZOR rears on 10" Douglas Alum., 14T front,38T rear sprocket, tether kill switch, front wheels reversed and more to come... removed choke butterfly, custom GORTEX shock covers, and pre-ware airbox lid. custom made oil cooler scoops, brush guards... , , and 16T and 36T gearing.
FOR SALE
95 Skidoo Formula SS 670-new part/1" paddle,racing clutch, more..
USED TO OWN :
95 Kawasaki KX250
2001 Polaris Sportsman 500 "THE TANK"
84 KTM 600
84 Honda XL600R
84 Honda TRX200 some mods
87 KX 125 with mods,
82 RM 250 with mods,
and 85 CR 500 with mods maxed out
http://photos.yahoo.com/yellow_ho_01
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http://photos.yahoo.com/red_400ex_00
ABERCROMBIE PREPPY RIDER!
i am guessing you are at a low elevation (below 1000') so I would start at a 155 and work your way up. I have pretty much the same setup w/ just my silencer, k&n, and dynojet kit. I run a 155. Also, I have the stock headers. If his is a complete pipe jet a little higher.
~2001 Yellow 400ex, K&N filter with Pre-filter, POLISHED Supertrapp IDS2 silencer, 20" rear Holeshots tires, Braking brake pads, Black Shockers Shockcovers, Renthal 400ex bend bars w/ oury grips, Pro Design tether kill switch, JE 440 big bore 10.5-1 piston, Dyno Jet Stage 2 kit, Removed air box lid, Duncan Racing aluminum nerfs, AC Racing full chassis skid plate, Race cut plastic, AC Racing mudscreen bumper, and a 42 pilot jet and removed choke.
*SOLD*
Registered User
A 40pj and a 155mj should do the trick. If you live at an elevation over 2500-3000 ft, you might have to step down to a 152 mj.
2000-440ex Stroker--Fan Cooled
Houser +1 A-Arms, Elka Triple rates, Laegers +1 1/4 Swingarm, G-Force Axle w/Durablue Anti-Fade Locknut, 14/36 Gearing, DID X-Ring Chain, C&D Revalved Rear, Maier Silver Plastic, Steel Grey PCed Frame, SPAL Fan, AC Bumper, Pro Armour Footpeg Extensions, Renthal Bars, Yoshimura Full Exhaust, 450R Carb w/ZR's Adaptor, K&N w/o Lid, Powroll 440 Stroker w/stg 3 HC, P&P Head, HD rod, GT Thunder HD Studs, and Timing chain, AMR Monster Coil, 4 Degree Advance Key and a 12oz lighter flywheel. Now at 12.5:1 Compression!
450R Front brake upgrade using 06-up Spindles and 07' hubs.
450R Rear Brake Upgrade
Kenda Knarly XC Radial 21x11x9 Rear Tires
Shorai Lithium Iron Battery
Running E85--Jetting: 70 pilot, 240 main, HRC needle on bottom notch and shimmed.
Ride Hard or Don't Ride!
if u are running close air box, you could probably get away with just moving the clip on the needle down 2 positions. if that doesnt work, or if you have a open airbox, it is just guess and check. thats what i did.
dave:devil
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