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Got A 2003 Xr400 Completely Stock. What Is The Cheapest Way To Get Rid Of The Bog...free Mods Or Relativly Cheap...thnxs

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Do a search here for "The Gordon Mods". Rejet for your elevation, tune the fuel screw for best throttle response. And most of all, DON'T TRY WHACKING THE THROTTLE OPEN like a 2 stroke. It's not going to respond like a 2 stroke.

When you get ready to rejet, come back with info on the intake/exhaust mods you've done and your elevation and we can generally get you real close on jetting. With careful tuning you can all but eliminate any throttle bog, within reason, as I said, it's not going to respond like a 2 stroke when whacking the throttle open .

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2003 xr 400

doing the gordons mods on sat..uni filter, exhaust holes and probably 160/60.

3500 elevation..does that sound right????

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2003 xr 400

doing the gordons mods on sat..uni filter, exhaust holes and probably 160/60.

3500 elevation..does that sound right????

This jetting is probably pretty close, maybe a little rich on the main jet, try it and see.

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