If you are having spark issues on your Yamaha FZX750 then the ignition coils could be the culprit
chances are your coil packs are due replacement as they now are all over 40 years old
Suzuki GS 750 (1977)
Replacing the head stock bearings on your DR125 should be a part of your regular servicing
They have been manufactured to replace the original set of head stock bearings on an XJ550 for the years and models shown above
Chrome Rear Shock Absorbers: Kawasaki Z440 Z 440 (1980-1984) Kawasaki H1 If you are having sparkBrand new set of chrome rear shock absorbers to fit: Kawasaki Z 440 A LTD (1980 1981). Kawasaki Z 440 A (1982 1983). Kawasaki Z 440 C (1980 1981). Kawasaki Z 440 D (1980) & (1983 1984) Kawasaki Z 440 D LTD (1981 1982). Kawasaki Z 440 G (1982). Kawasaki Z 440 H (1982 1983). This set of rear shocks is designed to replace the original factory shocks on a Kawasaki Z440 for the years shown above. The models are: A1, A2, A3, A4, B1, B2, C1, C2, D1, D2, D3,