Questions & Answers for: Yamaha YZ 125 fuel mix

...have the choke pulled out it is adding fuel and air so when you shut off the choke the fuel supply goes away. for the oils use yamalube 2 stroke oil for pre-mix and 10w -30 gear oil for your

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...fuel, 32 to 1 mix, thinking 390 main and 91 octane mixed 32 to 1??? Higher octane fuel is needed from what you describe. Without knowing where you are located and how hard you ride the bike, it's ...

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...on your fuel has too much oil in it when you mix it. Make sure you're mixing your fuel properly then I would check on rebuilding and adjusting your carb if your fuel mix is right. Hope this ...

Question about 2003 YZ 125

1 Answer

...fuel from cap and would not run,had to drain tank and put fresh mix in and she fired right up.....should be one off these 3 things, but start with the plug first fresh mix,and if that dont do it, it ...

...fuel mix that your seeing on your plug and thats fouling it out......now this is caused by either to rich of fuel mixture(you should be mixing 32:1) or you need to rejet carb so it delivers less fuel ...

...fuel mix. I believe 50 to 1 is the correct ratio yet you may want to cut back, a little at a time, on the oil or run hotter fuel. The exhaust system will also accumulate enough oil sludge to impede ...

...fuel mix either up or down on ration to find the best mix then play with fuel mix setting on carbi to fine tune you will be roosting flat out in no time PS stick a new spark plug in each test with ...

Question about 2003 YZ 125

1 Answer

...mix your fuel in the gas tank of your bike - to this the answer is simple NEVER DO THIS always premix in container then add. If your asking what ratio to mix then it depends what riding you will be ...

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