Electric RoadRacing tach issues

[greenmonster]

Bold or stupid,
I took mine apart.

1. There is supposed to be a minor part on the PCB that goes haywire, making the tach unsteady at around 5000 RPM.
Anyone knows what part, just one of the condensers or what?

2. Gettting a good plastic glass, like macrolon used in helicopter cages, no problemo,
but what about the black ring to cover it up?


Why did I do it?
To try to make it better than it was from factory before I sell it......

[greenmonster]

Bump.
Noone knows where to buy a bezel?