Starting a 500cc Tom Thumb mini trike build and need advise

numscul · 2025-10-22T23:05:37-0500

I have a nice 82 Honda 497cm air cooled kick start engine that I want to build a tiny trike frame around and I don't want to pay $350 bucks for a new wire harness, so I was wondering if I could get away with using a wire harness off of a 125cc pit bike if I redid the connectors or am I asking to start another fire?

Anyone as cheap as I am and ever do this before ?

Any electrical advise would be great

Master Hack · 2025-10-22T23:33:23-0500

If you have the original harness get a wiring diagram and modify/repair/customize/adapt it to suit your needs.
l’m working on one now.

Whitetrashrocker · 2025-10-22T23:56:07-0500

Yup. DiY. This was a donor motor I wanted to get running before the swap. I didn't have much of a schematic but you get the point.

numscul · 2025-10-23T10:49:11-0500

it's funny how something that looks like spaghetti can be so intimidating

I don't have the original wire harness but I do have a wire harness from a 125cc Chinese kick start engine So in theory all I would need to do is make sure I was able to connect it up and it should work

Thanks and good luck with your project

Starting a 500cc Tom Thumb mini trike build and need advise

numscul

Active member

Master Hack

Well-known member

Whitetrashrocker

Inmate #952016

numscul

Active member