Predator Or GY6150
 

Just a thought. The gy6150 seems like no matter the upgrades, p and p, exhaust, etc. it will never have the power to pull a buggy with two people very fast nor have the torque for big hills. Maybe you can tell me otherwise.

However, what about that 600 predator engine. I know it will take some modding and not have that cool reverse, but do you think that would solve the power issues?

ATV engine, More power and reverse

Neo,

Have you put in an atv engine?

I started working on putting one in my kinroad but ended up ditching the idea. Decided I want to keep the atv 4X4 so I'm building my own frame. Using the diffs out of a Suzuki I have (selective front but 350cc and smoked) and the engine out of a 400 Kawasaki (it was awd, liquid cooled, and runs good).

Just gonna let my son have the 150 buggy to thrash on in the pasture. The more I tore into it the more I find neglected by the PO I would be basically building a new one anyways to make it hold up to 4x4 400cc.

Try to find ya a 200-300cc air cooled and it's not real hard swap. Granted there is some cutting and welding. I had a honda 200trx I was planning on using before I had the 400 given to me. IMHO those are just about ideal for a swap with a small increase of power. My area they were pretty popular and easy to find bikes not worth fixing but have a good drivetrain. YMMV