Frustrations and Confusions

#1 Yes they will work. You will want to go with the smallest diameter ones you have to help with hills and to get the most out of the motor.

#2 It should do you alright. You will have to gear it right with the smaller diameter peg. You will have to do some pedaling on hills but you will notice a big diffence in the amount of work is needed.

#3 The square ended shaft unbolts and you will find yourself with a good ol' bolt you just pop your peg on it and then find yourself a counter nut of the same size tighten it up good and you will be on your way.

Each of the whackers I pulled had different types of shafts. Some long some short some 3/8 od some 5/16 od but you could get them all back to a threaded shaft if you took enough parts off it.

The larger the engine the more pull you have. I heard the best description of how the smaller ones work. It says it is like riding a tandem bike where the back guy always pedals. You can get a pretty good speed up and the more speed you have going into the hill the less you have to pedal.

I can go up some pretty good hills with my 31cc and hardly pedal at all. I can always remains seated when i pedal up a hill.

I agree the smaller the wheel the better it will climb. The larger the wheel the more speed it will do. However I am using a wheel about an inch in diameter on the 31cc and have not been able to open it up yet. Nothing around here is straight and flat enough to let it wind up without skipping. The 20mph on the straight I get is plenty fast for an old man.

When you get your engine if you can fit your peg let me know I have some other easy fixes for the short shaft and long shaft ones. For instance if you have the long shave but 5/16 you simply slide your peg on it and then go to the hardware store and pick up a 5/16 fine thread nut and a few washers then tighten it down. Works like a champ.

For a short 5/18 in shaft you just get a 3/4 galvanized pipe nipple from the plumbing dept and a galvanized end cap drill a hole in th end cap. use the 5/16 nut and lock washer to tighten the end cap down, then screw the pipe nipple into the end cap. A three dollar solution at the most.

1.5 is what I have and depending on the hills it may be ok. I would go for 1 inch.

the throttle will be a cable leading to a trigger. You should keep the cable once you get it off the trigger. You can marry it to a brake cable to make throttle from the handle bars. When you get ready to go if it the end is a tiny little L shaped metal piece it is pretty easy to do. just get a small piece of metal you can find them laying around you house I am sure. Drill a hole in one end for a nut and bolt any size will do... Then a tiny little hole for the L end of the cable. When you attach a brake cable to the bolt. You will have a married cable and a throttle.