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Honda MX & Off-Road Dirt Bikes
Attn: 2002/2003 CR250 Keihin PWK Converts
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[QUOTE="marklb, post: 674506, member: 19411"] Guys, I have been reading all of your troubles with jetting the 03 and this is just what I went through. I have found something that works. The bike comes with a S-9 nozzle which is rich, I have spent atleast $100 on needles and could not get satisfaction. I did some research and found that the YZ250 uses a S-8 nozzle. Approx $16. I put it it and I am using the stock needle for 1500ft 95-100 degrees. Anyhow I even tried a differet slide. The yamaha # is 3tc-14141-s8. I have have Terry Varner deck & port the cylinder, I am running stk pilot, stk needle, 390 main, stk slide. Let me know if this works for you! Mark [/QUOTE]
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Dirt Bike Discussions By Brand
Honda MX & Off-Road Dirt Bikes
Attn: 2002/2003 CR250 Keihin PWK Converts
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