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CFMOTO ATV Forum
Posts about CFMOTO ATV models and manufacturer specific topics.
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Latest Forum Posts
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I'll check the filter later today. The only manual I could find that was close was the 2009, 450X. I went to a suzuki dealer to get one but I just couldn't see me paying $160.00 for one. I guess you could call me a cheap scape. Most of the stuff is the same, plastics, suspension seems the same, drivetrane, brake system all I could find that was different was the engine for obvious reasons and some wiring. I never could get an answer on how many changes they may have made to the engine, like ign, fuel system and a few other things. from 2009 and 2011. I did find the exhaust leak. The connection between the header pipe and the muffler. It will not tighten and someone shimed the connection with muffler tape I guess just to get by so they could sell it. The tape fell out and thus it started leaking. It's a slip fit there and the clamp that is spot welded to hold it in place just will tighten enough to make a secure fit. In fact, once I unbolted the muffler it just fell out and the clamp was as tight as it would go. I don't know if that clamp has stretched to it's limit or if the connector itself has worn enough to where it won't tighten up. Then, I guess someone could have put the wrong muffler pipe on it that is a little larger. I have been looking for an automobil muffler clamp but can't find one small enough. -
Thanks for the help. I ordered the 4kb-22189-00-00. still too big on the one end . Anybody else have any ideas ? -
Yeah Randy.. they are all very critical and carefully chosen.. And.. carbies are not junk.. Just the wrong one for the job. Read the tests we do to check mixtures and settings.. See if anyone(any one qualified) suggests snapping the throttle open as a test.. on the type of carby you have.. If you want to snap the carby open, which is not a good driving technique, then get a pumped carby.. And you see those small holes stacked up on one tube.. that indicates it needs/gets a lot of enrichment as it comes onto the needle, which means it's running lean somewhere else.. slide probably. Not all acceleration compensation is richening, sometimes they run things rich, and then lean them temporarily or after attaining speed. -
That jogged my memory. The tube is how I know it's a 2-stroke carb. I remember swapping that too with no luck. I thought I posted these pics earlier: The 230s and 250s carbs are the same but look how different the 250s needle is. -
I saw that "super tuning" manual, but there are better, more appropriate ones for you. Mikuni ones. I did a search putting the jap brands in front of technical training manuals and there were a few for sale, all hard copy though.. And yeah, you know the emulsion tube, and how some of them have small holes half way up them, well those are important, they mix air in, but they also serve as enricheners as the needle takes over.. they are part of the acceleration compensation.. Not all two-stroke engines have those holes. You should read the tuning process, the order of operation, and the tests.. Then you might have more luck.
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