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Yamaha MX & Off-Road Dirt Bikes
Help! I blew up two '06 Yamaha YZ125's this past weekend
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[QUOTE="BradC62, post: 1126556, member: 72619"] [b]motorob[/b] Your main jet is too small for a stock 06 yz125 at 50 deg. Around a 430 to a 450 depending on outdoor or indoor. I run 32 to 1 Yamaha R and have been for 30 years. My son has a YZ125 06 no problems other than a stopper lever going bad! ouch! We have been running a 470 to a 490 mian jet in a stock bike all year , it will take on 250 F's. After the stopper lever went, I had to split the cases , very mild port work was done. We are running a 500 to a 560 main jet ! at the end of outdoor and the beginning of indoor racing depending on temp, dry or damp air. The bike is stock . There is a huge potential to unleash from with-in the carb! with a stock bike. Good luck ! [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
Help! I blew up two '06 Yamaha YZ125's this past weekend
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