ATC/TRX engine sizes?

[sethumich]

I know a guy who has a few ATC's and a TRX that are missing engines. I am fairly certain that the ATC 70 engine mounts up just like the CT70 or Z50. He also has an ATC90 and a TRX124. Do these have the same engine mounts as the 70's and 50's or are the engine cases larger, like on the ct90's? I was planning on picking a couple up and putting some Lifan's in them, but i wanted to know before I drove the two hours to look at them.

[Miniac]

The 50s, 70s, and the TRX90 use basically the same cases. The mid '90s CT70 and TRX90 even use the same centercase gasket. (11191-GW8-680, if it matters )

The ATC90/110s and the ATC/TRX125s use different cases from the minis, though DrATV has some hints for stuffing a clone engine into an old CT90/110. The same approach would probably also work on the ATC/TRX models, though I'd rather hunt up the correct Honda engine so I'd only have to do it once.

CT90_ENGINE_SWAP PARTS_NEEDED SOME_INSTRUCTIONS

HTH,

-kevin