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Canadian Daves JustKDX
FAQ Topic: 33mm carb vs 35/36mm carb
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[QUOTE="Michelle, post: 567999, member: 16598"] My 220 has a 33mm carb, is this better than a larger carb? A 220 has the smaller carb to assist with the low-end - part of the reason the 220 is a torque monster. The 200 has a 35mm carb which is possible to bolt straight onto the 220, but you may lose some of the torque of the 220. A cheaper option would be to bore the 33mm carb out to a 36mm with a divider plate, which acts as kind of a bi-focal lens for airflow, mimicking a smaller diameter carb at 0 to 1/2 throttle for better low end response, yet opening wide for more airflow at full throttle. There are offsetting things you can do: For example an FMF pipe, airbox mods, and aftermarket reed valves may boost the overall power enough that the percentage of power shifted away from the low end is somewhat masked because the overall power has been increased. In the words of Carncarvr, boring the carb out is not just for 220's either: “How it changes the 200: Better everything. You will not be disappointed! As good an improvement as a pipe. Going from 35mm to 36mm is going to hurt overrev? No. Why not buy a larger bore carb? Because that carb still would not have the divider installed, would not have the jet screen cleaned up, would not have the TV machined. Besides not fitting for diddle.” [url]http://www.dirtrider.net/forums3/showthread.php?threadid=33209[/url] {- does that make sense now? Anyone want to add more or clarify it further? - I did, but now it's left a question in my mind - if I put the smaller carb on the 200, would that give it more bottom end?} If anyone comes across more threads that could be useful, yell out, add them here, it's a bit hard to work on the FAQ until the search function is functioning again and I'd rather have a topic sorted out to satisfaction than start trying another one. Plus I've been busy with other stuff ;) -edited the post further. I'm not happy with it, so leaving it till we can search properly again ;) [/QUOTE]
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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
FAQ Topic: 33mm carb vs 35/36mm carb
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