Roger, while you're sourcing parts, can you find these bearings?

I pulled the throttle quadrant apart this morning and found 6 (!) HK0810RS bearings- 3 pairs in each of the linkage pieces:

The throttle quadrant bearings HK0810RS are $13.50 each.

Roger

928sRus

The roller bearings in the throttle quadrant:

INA HK0810-RS-FPM-B-L271 8mm Needle Roller Bearing, 12mm O.D

HK0810-RS SKF Sealed Drawn Cup Needle Roller Bearing 8x12x10mm