KEYSTER - YAMAHA YDS3 YDS 3 250 TWIN KEYSTER CARBURETOR REBUILD REPAIR KIT 1964 1965 CARB KIT

Keyster Yamaha YDS3 250 Twin Carburetor Rebuild Kit – 1964, 1965

Restore proper fuel delivery, stable idling and smooth throttle response on your classic Yamaha with this Keyster carburetor rebuild kit. Designed specifically for the 1964–1965 Yamaha YDS3 250 Twin, this Japanese-made kit includes the precision components needed to rebuild one carburetor.

Kit Includes

• Float bowl gasket
• Alcohol-resistant float needle and seat
• Main jets
• Slow jet
• Air screw
• O-rings and seals
• Packing and gaskets

One kit rebuilds one carburetor. The YDS3 is a twin-cylinder motorcycle — order two kits to rebuild both carburetors.

Why Choose a Keyster Carburetor Kit?

Keyster has decades of experience manufacturing high-quality carburetor components for vintage Japanese motorcycles. Made in Japan using alcohol-resistant materials, Keyster rebuild kits provide dependable sealing, accurate fuel metering and long-lasting performance with modern gasoline.

This complete Yamaha YDS3 carburetor repair kit is an excellent choice for professional restoration shops, home builders and vintage motorcycle enthusiasts looking to correct:

• Fuel leaks or deteriorated seals
• Difficult starting
• Unstable or inconsistent idle
• Poor throttle response
• Carburetor flooding
• Incorrect fuel delivery

Fitment

• Make: Yamaha
• Model: YDS3 250 Twin
• Years: 1964, 1965
• Application: Carburetor rebuild and restoration
• Country of manufacture: Japan

Fast shipping across Canada from Duff Moto MFG in Alberta.

Please compare the listed model, year, jet sizes and kit contents with your original carburetor before ordering. Vintage motorcycles may have replacement or modified carburetors.