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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
White Bros XR4 Rev Kit
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[QUOTE="michman, post: 110618, member: 18348"] I put the rev kit in Saturday and rode sunday. First I thought the directions could be alot better than they were but after redaind them about five time over finally got it. One other thing is that the pick up unit looked like it was hand ground to fit the XR4 and had to file and use the dremel to get the air gap correct. First let me strat off by saying that I only have been able to ride my new motor set up 3 times before doing the Rev kit and I am also trying figrue out my gearing. I did notice it did take away some of the bottom end that I had before and it did make it a smoother transition to the mid range. Before it was was a massive hit right of the bottom and that I like but I miss so of the bottom end power. I really don't think it makes the bike rev that much higher if at all, just by the seat of the pants of course it seemed to rev out just like before. In the instructions it said it would rev to 11,500 but that is a bunch of crap. All in all I would make this the last mod that you would do if at all. I would make may first the pumper carb that one thing alone will make the bike in more ways than any other mod you will do to the engine that of course is my opinion. Also some of the others on the subject let me know if there has been anything else that you have done to make your bike better. One last thing on my A-Loop tank with all the engine mods I lost 10 miles of gas miliage per tank. I used to get around 55 miles now I had to go on reserve at the 45 mile mark and the parking lot was 1 mile away and I am not sure how far I can go on reserve. If you have any more questions please asked. Mike [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
White Bros XR4 Rev Kit
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