Lose RPM's after 35 mph

[dustflo]

Why? Tach says about 7,200ish right around 35mph then drops about 300 RPM's as my mph still slowly climbs.

[Wheelman-111]

Greetings:

Assuming the pulleys are lubed and move freely, evaluate your variator rollers. My Reflex 250 had the same issue, particularly in stock form. The roller weights are simply too heavy for best performance as supplied from Honda-san. Perhaps they do it for milege, noise or engine longevity, but whatever the reason there was a big and too-sudden RPM drop that takes the engine out of its peak power production speed right at 40 MPH. After that, the scooter then "gathers speed" instead of "accelerating".

The cure for mine was to ditch the oddball Reflex variator with 3 heavy and 3 light weights running in long and short channels. Instead I installed the variator unit from the similar Big Ruckus 250. Its ramps are all the same length. Then I dropped from the stock 150 gram total load to 115, and if I ever get an excuse to go through the extensive process to pull the plastics again I'll drop another 10. For now the RPM stays up all the way to 50 mph before a (slower) drop as the 250ccs begin to contend with the increased wind load. It still hits 80MPH indicated (76 GPS) but gets there a whole lot quicker.