It still works like a Swiss clock I have just done another 80 km this afternoon, the VDO rev counter cannot be as fast as the revs of the engine on the first three gears and in fifth gear I arrive very quickly at 6350 rpm on the highway.
I very frequently drive at less than 2000 rpm in fourth gear without having a bad engine operation the low engine speeds are very smooth compared to the original 121 cub engine, the thing that has also increased is the engine vibration cause may be the 4-3/8" crankshaft.
