Keyster 1980-1982 Yamaha XJ650 4K0 Carburetor Rebuild Kit - KY-0511

Keyster KY-0511 carburetor rebuild kit for 1980-1982 Yamaha XJ650 4K0 applications using original carburetor 4H7-14901-00. Made in Japan for model-specific carburetor service.

Quantity: One KY-0511 kit services one carburetor. The XJ650 uses a four-carburetor rack, so order four kits for a complete rack rebuild.

Verified Fitment

• 1980-1982 Yamaha XJ650 4K0 using original carburetor 4H7-14901-00

Verified Kit Contents

• Float chamber gasket
• Needle valve
• Jet needle
• Air screw and spring
• Starter plunger and spring
• #110 main jet
• #40 jets (2) as supplied
• Additional slow-air and sealing components supplied in the kit

Product Details

• Keyster part number: KY-0511
• Original carburetor reference: 4H7-14901-00
• Quantity: 1 kit per carburetor; quantity 4 for a complete rack
• Country of manufacture: Japan

Prefer Us to Rebuild It?

Send your complete carburetor rack to Duff Moto for professional cleaning, inspection, rebuilding and setup. View our Mail-In Carburetor Rebuild Service.

Please compare the model code, carburetor number and original carburetors before ordering. This listing is intentionally limited to the verified Keyster KY-0511 application rather than broader aftermarket compatibility claims.