Guys I have a 6.5 on my trailhorse and its running like :001_9898:. Before I had the clone on the TH, I had it on my arco (straight drive) and I had the same issues but on a smaller scale. I could actually get it to full throttle before it would act up. Basically when I try to wind it out, the gov. kicks in way to early and the engines starts to hunt. It maybe reaches 3/4 speed and drops rpms really quick and then kicks back up to the 3/4 speed it was recently at. The engine will not hold a steady rpm regardless of how fast the bike is ging. Also when I let off of the gas it backfires big time. The first time I heard it back fire, I thought somebody finally got tired of me riding through the neighborhood at night :biggrin:. I also tried running the engine with the choke in different positions-no luck
Trail horse:
Clutch- 12t
Jackshaft- 13t AND 18t
Drive wheel- 60t
6" wheels
Trail horse:
Clutch- 12t
Jackshaft- 13t AND 18t
Drive wheel- 60t
6" wheels