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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
YZ125 smokes like a used pinto.
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[QUOTE="stormer94, post: 659159, member: 23528"] I guess I never watched my son trail ride his bike very hard before. When he was young, I paid more attention to his health than what the equipment was doing, although it's good equipment. Now that he's older, I find myself spending more time looking at his equipment, teaching how to maintain it, and making sure it's the right gear for the job. His bike now, a 2000 YZ125 has the stock pipe and carb, but has an Eric Gorr 134 piston and cylinder on it, with maybe 8 hours on it. We have been using "yamalube R" for mix, and mixing it 32:1. The bike has good power and the top end is fresh. Here's the question, The bike smokes like a chimney when he's on the power in something tough where the bike is working hard up a climb. Doesn't so much at idle or general trail riding. The plug looks okay. Of all the bikes we've had, this one oozes "black guck" out the pipe worse than any other bike we've ever had. I'm convinced I need to make carb adjustment, where should I go first? Normally I have "our guy" work on it, he moved... :ugg: Now I'm on my own, no big deal, just hard to find the time, I enjoy the work. So before I make a bunch of wrong changes on my own, thought I would ask for some advice. If the plug looks good, what should I adjust first to get rid of excess smoke under load under power. Although the more I read what I wrote, I think I may have answered my own question. :confused: Thanks, -Bob [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
YZ125 smokes like a used pinto.
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