I finished my new Schwinn cruiser with the 4 stroke kit from kingsmotorbikes.com. The bike is great and I love the 4 stroke engine! This kit came with what looks like the "hoot" gearbox. So far it has been working nicely and this bike is much easier for beginners to hop on and ride being that it is an automatic. It's always funny when people would try to start my 2 stroke Schwinn; pedal hard, let off the clutch and they tip over when it comes to an abrupt stop.
I must add that the kit is not as simple to install as the 2 stroke kit at least on this Schwinn. I spent hours fitting, welding, and fabricating to make it work right. I had to cut the exhaust apart and reweld it. The motor mount plate wasn't the adjustable one and needed modification to work. The extended pedal crank assembly did not fit my bike so I had to cut the original pedals off and weld the new ones onto the original crank assembly. Be sure to check the knot for the pull start handle because mine pulled off on the 3rd start up. This caused the string to go inside the recoil and I had a little adventure fixing the recoil.
I'm ok with doing all this work but just wanted to let others know that this is a very involved installation. I do believe its worth the effort though for the 4 stroke engine.
I must add that the kit is not as simple to install as the 2 stroke kit at least on this Schwinn. I spent hours fitting, welding, and fabricating to make it work right. I had to cut the exhaust apart and reweld it. The motor mount plate wasn't the adjustable one and needed modification to work. The extended pedal crank assembly did not fit my bike so I had to cut the original pedals off and weld the new ones onto the original crank assembly. Be sure to check the knot for the pull start handle because mine pulled off on the 3rd start up. This caused the string to go inside the recoil and I had a little adventure fixing the recoil.
I'm ok with doing all this work but just wanted to let others know that this is a very involved installation. I do believe its worth the effort though for the 4 stroke engine.