If you are having spark issues with your Suzuki RG500 then the ignition coils could be the culprit as they are now about 40 years old and would certainly would benefit with an upgrade for some new aftermarket coils
Honda FX 650 Vigor (1999-2000)
This ignition coil has been manufactured to replace the original coil pack on a Honda XR125 for the years and models shown above
This set of head stock bearings are taper roller style and have been manufactured to replace the original set of steering bearings on a NSR250 R to R9 for the years and models shown above
This set of head stock bearings are taper roller style and have been manufactured to replace the original set of steering bearings on a Yamaha WR200 for the years and models shown above
Ignition Coil Yamaha XV535 XV 535 (1988-1998) Yamaha YQ100 If you are having sparkBrand new ignition coil to fit: Yamaha XV 535 Virago (1988 1998). Yamaha XV 535 S Virago (1994 1996). Yamaha XV 535 SA Virago (1997). This ignition coil has been manufactured to replace the original coil pack on a Yamaha XV535 for the years and models shown above. 80mm centre to centre mounting. To replace OEM: 2GV 82310 21, 2GV 82320 20, 2GV 82310 30, 2GV 82320 30, 2GV 82320 20 or 2GY 82310 20. If you're having spark issues (weak spark or no spark)