What Kind of Fuel Does a Yamaha PW50 Use?

Answer According to Yamaha Motor Corporation, the PW50 engine requires regular unleaded gasoline with an octane rating of 86 or higher. If engine knocking occurs at a lower octane, switch to a premium fue... Read More »

Top Q&A For: What Kind of Fuel Does a Yamaha PW50 Use

How to Tune a Yamaha PW50?

The Yamaha PW50 has a two-stroke engine and automatic transmission. Fuel induction is provided by a Mikuni VM carburetor that operates with a linkage-cable system. Sensors provide data to a capacit... Read More »

Yamaha Fuel Tank Rust Removal?

The unstoppable bane of all motorcycles, rust, strikes terror within the heart of Yamaha riders everywhere. A common problem that many older Yamaha models face is rust buildup within their fuel tan... Read More »

How do I Adjust the Fuel Screw for a Yamaha WR450F?

The Yamaha WR 450-F is a 449-cc liquid cooled four-stroke motocross dirt bike. On the lower right side of its carburetor is an adjustable air screw, which controls the gas-air mixture. The bike own... Read More »

How to Change the Air Fuel Mixture on a Yamaha Grizzly?

The gas and air mixture on a Yamaha Grizzly is controlled by a small screw on the lower front right side of the carburetor. This screw is larger then the jet pins and is in clear view. You will nee... Read More »