I got a go kart with a 169cc suburu engine and I would like to change it for a predator 212cc. Is it the same build plate size so I can just bolt it in and not have to change anything?
keep the robin subaru on a shelf as a backup engine.. it'll outlive several predators
(and with 6.5horses it's not even less powerfull than a stock predator)
there's just no aftermarket modding parts for one really...
but left stock, it's about as good as an engine can be;
So yeah, if you want it to be reliable, keep the subaru as a backup just in case
I'd build it and thrash it. You'd likely put more $ into it to fix it enough to get half your money back. I know my dingo of similar build with a 212 clone does over 40mph with only a governor delete, I don't remember it's ratio off hand but it's running 18" rears too.
Lights require a battery that you will pull off and charge or an engine with a charging system. I wouldn't pay more than 180 for that go kart. That's if the subaru will run off starter fluid.
Extended as in a stretched frame? Ultimately it's up to you, I think $200 in that condition is quite a stretch, entire frame could be crooked like the stretched dingo I picked up, and have since parted ways with. Without knowing the owners fabrication skills $150 is probably a high offer.