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Dirt Bike Discussions By Brand
Suzuki MX & Off-Road Dirt Bikes
Jetting/Mix for Older RM125
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[QUOTE="jb_dallas, post: 1341834, member: 103004"] First off let me say that I know this topic has been beat to death and I have read many of the mix threads, but they dont address my specific question. I have a 1982 RM 125. I just installed a .080 over wiseco piston. The cylinder was in good shape. I expected more power now compared to the worn piston I removed, but the powerband doesnt seem to hit as hard as I expected. I am running stock jetting and 30:1 non syn oil. I am getting alot of spooge, a wet plug, and alot of smoke. I noticed some mix oil in the crankcase when it was apart also...could that be burning off? I replaced the crank seal, so that shouldnt be an issue. Shouldnt the bigger bore and higher compression piston require a larger jet? This is exactly the opposite of what I would expect. My air screw is turned slightly over 2 turns. I bought some synthetic oil and the guy at the store told me to run it at least 40:1. Should I re-jet, change the mix, both? Thanks [/QUOTE]
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Dirt Bike Discussions By Brand
Suzuki MX & Off-Road Dirt Bikes
Jetting/Mix for Older RM125
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