Questions & Answers for: 1998 yamaha yz 125 compression

need info on fual mixture for a yamaha yz 125 1998 what type of gas mixture 90% of these bikes run 32:1 - 40:1 mixture it is usually a 2:1 mix but u can call a bike shop and they should know the mix

...1998 yamaha yz 125. Gut did a top end rebuild. All works fine, but leaking coolant thru the weep hole just under the inpeller cover. What is going on here? It has seals there for the water pump. They ...

Yamaha yz 125 and it keeps fouling plugs and bogging out could it be the top end? A compression test will tell you your condition. (Throttle wide open while doing that) If that's good, your jetting is

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...a new piston into my 94 yamaha yz 125 dirt bike. When i try to start it has very low compression. I had a similar problem check to make sure the rings line up right and if that dosent work let me ...

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