Thanks for sharing this. I had been contemplating swapping out my 99 for a 147CC 2 stroke Jacobsen engine before next summer's riding season. The bike is a 50 Schwinn Panther which is quite heavy with a sidecar for the dog. It wouldn't need a lot more power to be satisfactory, but as is there are hills around where I ride that are iffy. I do not like stopping the rig, getting off and pushing it up the last of a steep grade while the dog looks over at me through her doggles and says by telepathy, "this is pathetic! Can't you push it any faster?" This is the stuff heart attacks are made of, so I do not like trying to pedal a freight train or pushing one any distance either.
With your simple modification I am guessing this will be enough to make the critical difference. I'll try it first with a stock china girl carburetor and intake manifold and if need be will go up from there. This will be a whole lot simpler than replacing the engine!
And so I thank you sir!
SB
