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Similar Forum Topics
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By Trent Finnessey
I’ve got a 2000 400ex with a dg slip on muffler, it came with he stock muffler on it but the previous owner had the dg in a box so I put it on. I’ve been riding it for the past month and a half and every time I let off it backfires, and the other day the backfires got way louder, 2x louder! I’m concerned that I may hurt my motor? Why does is backfire??? Thanks
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By Dumass
My name says it all. I have a '03 Honda Sporttrax 400EX with a new aftermarket carb on it that seems to be having issues. I can start it but it idles really rough and when I give it throttle it just kills the engine. I have tried adjusting the idle screw but to no avail. I am in the San Diego Ca area.
Any advice will be greatly appreciated. I would also like to get an owners manual for the thing too but can't seem to find a downloadable one.
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By Trent Finnessey
So I’ve got a 2000 Honda 400ex absolutely love it!! I’ve had it for about a month, I ride with bruteforce 750’s, outlander 850’s and 1000 sxs’s and I was thinking of getting a trx450r carb and a full hmf exhaust. And probably doing the air box mod too, how much power would this give my 400? Just a little different or a big difference? Cuz if it’s not much of a different I’ll just stick with my dg slip on..... thanks!
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By colin james
View File 2005 Polaris Phoenix 200 service manual
This is the service manual for the polaris phoenix 200 down load all chapters to have completed manual
Submitter colin james Submitted 07/19/2018 Category Polaris ATV
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By DanOnWD40
Hi guys, so Im i cam across this pretty nice quad. Its a 2003 400ex. Its priced at a little over $1,000. The seller states that it was previously rebuilt and has a hot cam in it. However, it is not firing. He says that it turns over and has spark. He also redid the wiring harness and still couldnt get it to run. I have some experience with quads from previously owning one.
My thoughts are its either something witht he wiring harness(cdi, kill switch...) or it isnt getting the right amount of fuel(needs carb rebuilt) or it's the valves. Or could it be timing? What do you guys think? Let me know!
400EXTurningOver.mp4
I have attached a video so you guys can see how it sounds like. I feel like it wants to start but is missing something...
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