In a stock PW80, there is no need to mix oil with the fuel. The oil is injected into the carburetor throat by the oil pump. The factory ratio is estimated to be about 24:1, which is quite rich. On bikes with the oil pump disabled, ratios as lean as 40:1 have been tried with success. The optimum ratio will ultimately depend on the elevation and the jetting used There is an oil tank under the seat
40:1 if oil injector on carb is in active
how to set Yamaha pw80 carburetor
Fuel mixture ratio for Yamaha rt100?
32:1 to 36:1 but you shouldn't have to mix it. The PW80 comes with a Autolube oil injection system eliminates the need to premix fuel and oil.
http://safemanuals.com/user-guide-instructions-owner-manual/YAMAHA/PW80-2003-_E
One may buy a used Yamaha PW80 from Cycle Trader. These are private sales but one may often get a better deal this way. One may also use Kijiji to purchase a PW80.
$700-800
2.33 Ounces
All Yamaha PW80 s have 3 semi automatic gears ( no clutch lever etc )
It all depends on condition, if its a nice clean pw80 about 800-1200. hope this helped
The correct mixture is 50:1
torque specs air fuel mixture screw on a yz125 2003
Top speed is 41 mph.