If you're having spark issues with your Z 400 then it's a no brainer to get some upgraded coils on your bike
Kawasaki Z 400 G Custom (1979-1981)
To replace OEM: 33410-49210 or 33420-49210
D1 to D4 Xanthus
This performance coil is manufactured to upgrade the original coil 30X-82310-40 on a TT350 for the years shown above (S and T models)
black rear shock absorbers yamaha xs650 xs 650 1975 1983 Honda TRX500 If you're having spark issuesBrand new set of black rear shock absorbers to fit: Yamaha XS 650 (1975 1981). Yamaha XS 650 S Special (1978 1983). This set of rear shocks is designed to replace the original factory shocks on a Yamaha XS650 for the years shown above. The models are B, C, D, E, F, G, H, SE, SF, SG, SH SJ, SK. It has 325mm pin pin mounting points and a 40mm shroud. The top pin is 14mm, the bottom is 10mm (You may need to change these to the required sizes spare bush's