I have to replace my tappets/lifters (had a bearing go bad on one of them) and I've got the whole cam cover removed. Noticed that my bike has a stock Ignition Sensor Plate. I've heard that you should replace it if the scooter has over 50,000 miles on it........or if it is more than 5 years old. My bike is a 1991 and I imagine it is probably the original.

Should I replace it with a stock one?............or will upgrading give me any better performance?

Here's what I have:

1991 FXRS (25,000 miles)
Upgraded air cleaner
re-worked stock CV carb
stock exhaust (with baffles cut down a bit)
andrews cam
adjustable pushrods
screamin' eagle ignition module
screamin' eagle performance coil
8.5mm magnecor plug wires

If you have suggestions on upgrades...............let me know.

Thanks guys