Heavy Duty Gold X-Ring Drive Chain: Kawasaki GPZ305 GPZ 305 (1983) KTM XC250 then this could be the

then this could be the solution

Kawasaki EL 250 E (1991-1994)

Yamaha YB 100 (1973-1992)

If you have a weak spark on your Yamaha FJ600 then the coils could be the culprit and it's a good idea to get some new coils on the bike

Heavy Duty Gold X-Ring Drive Chain: Kawasaki GPZ305 GPZ 305 (1983) KTM XC250 then this could be theBrand new drive chain to fit: Kawasaki GPZ 305 (EX305 A) (1983). This heavy duty gold X ring chain has been manufactured to replace the original chain on a Kawasaki GPZ305 for the years and models shown above. Pitch Width Links 530 100 Colour Gold Seal Type X Ring Master Link Type Clip and Rivet Included Please check size, colour and seal type prior to purchasing. If you require a different size, you can find our full list of sizes by clicking HERE