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450r owner new to 400ex mod question

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Old Jun 9, 2009 | 09:34 PM
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Default 450r owner new to 400ex mod question

hello everyone. I need a baseline of where I should start with my jetting. I have a 07 400ex. I just bought 440 kit with 11-1 piston and stage 2 hotcam. I ride stock pipe unchoked, and holy airbox lid. I dont plan on doing any more mods than the 440 an cam. (wanted something quick an not so loud to ride around town) Thanks
 
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Old Jun 10, 2009 | 06:18 AM
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not 4sure on the jetting but id start around 170 and see how that works, also you can remove the choke and run a 42 pilot jet. and with the work your doing id look into the fmf quietcore system. theres pipes thatl remain fairly quiet and still free up some power.
 
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Old Jun 10, 2009 | 08:05 AM
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Ya, really man you need a pipe. I'd bet you'd benifit more from a pipe than the 440 kit. 170 will probably be to big with no pipe.
 
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Old Jun 10, 2009 | 02:03 PM
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what would be the quitest pipe on the market today? here and a few other towns around my area you can ride your quad as long as its quite an ur not on the highway
 
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Old Jun 10, 2009 | 02:05 PM
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I have been looking at the quiet core for one of my 400s
 
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Old Jun 10, 2009 | 02:35 PM
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Look at fmf. I think they have a "quietcore" that fits in most their pipes. I had a white bros.
 
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Old Jun 10, 2009 | 08:31 PM
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I guess im also looking into a new subframe, bumper an plastic. I got in a wreck today on the way to the pond. car ran a stop sign. Broken ankle, road rash on my left leg, arm an right leg. Im prolly gonna be poating a lot for a while. lol
 
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Old Jun 10, 2009 | 11:10 PM
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Originally Posted by busted450r
I guess im also looking into a new subframe, bumper an plastic. I got in a wreck today on the way to the pond. car ran a stop sign. Broken ankle, road rash on my left leg, arm an right leg. Im prolly gonna be poating a lot for a while. lol
lol damn...
 
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