What would be the best engine for my 90?

[High Speed Dirt]

Just bought a '74 ATC 90 without a motor ( bottom & top ) What do you guys suggest as a donor without using a welder? Will a 125M or TRX 125 work or should I locate a later model 110? Plan on totally restoring it back to it's original glory later, but want it up and running quickly on a budget for now. Any advice?:wondering

[shortline10]

Atc90 motor is the ony direct bolt in motor for that frame 1970-78 atc90 motor . A 110 has a different front motor mount and the motor itself is about 3/8" longer even if you changed the mount .



Just bought a '74 ATC 90 without a motor ( bottom & top ) What do you guys suggest as a donor without using a welder? Will a 125M or TRX 125 work or should I locate a later model 110? Plan on totally restoring it back to it's original glory later, but want it up and running quickly on a budget for now. Any advice?:wondering

[High Speed Dirt]

Thanks! Will a CT 90 work, if I run across one of those?

[shortline10]

No a ct90 has different rear engine motor mounts . Atc90 only has 2 mounts on the block were a ct90 has 3 mounts .



Thanks! Will a CT 90 work, if I run across one of those?