Stock jetting is 148 main, 38 pilot, and 3rd clip on the needle.
Are you already set on buying the white brothers? I have one and my friend has an HMF, and his sounds better and has more power. Plus its only 209 and if you pay an extra 20 bucks you can get it powdercoated any color...
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2002 Red 400ex- Renthal Handlebars, Full Skids, White Brothers E-series, Knarlys+douglass' on back, Holeshot XCTs+ITPs on front, DG Nerfs and Bumper, Ceet Gripper Seat Cover, Race Cut Front Fenders, Acerbis Handguards, Pro Design Kill Switch, Shockwears, K&N Air Filter/outerwear, Tinner Air Scoops,Cr Clutch Lever, Denton Steering Stabilizer
1998 KTM 300MXC
"Support your local ATV mechanic...Buy a Yamaha"
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