What motor is in 70

[motoman12]

http://www.youtube.com/watch?v=GaoNwEpNvlQ&feature=related

I was giving a 70 roller yestarday and gonna do something with it

[joesmoe]

Looks to like a Chinese klx style head on that so probably at least a 150cc motor.

[BigTBones]

He says its a OGM motor which is identical to the GPX or YX 160cc motors, his is bored to a 192cc. This guy has tons of work done to it including a race head etc. I believe he is apart of Hondaatc70.com Check the site out they offer all kinds of aftermarket goodies for the 70's.

[Race Demon]

Big T and Joesmoe are right, Atc70parts.com, its at least a 150cc klx style head [hybrid] like you can get on pit bikes, I have 3 70cc trikes with 150cc and 160cc motors, lots of power, but a bit pricey and a pain to get in a 70, the 140s run well and are not near as bad to install

[motoman12]

wheres a good place to look for the gpx motors so there not a bolt up motor like the lifan's are

[Race Demon]

wheres a good place to look for the gpx motors so there not a bolt up motor like the lifan's are
TBolt and Whole-sale cycle, Pitster pro, are where I get alot of that stuff, Dratv has loads of stuff but not much for the hybrids, the motors still bolt up with only minor frame and front fender clearance issues to deal with, its the big 26 28 mill carb under the gas tank thats the problem, I would put an oil coller on anything 125cc and up and thats more fab work, I do race mine flat track and keeping the heat down is a real issue, you can see a pic of some of our 70s in the pic section :duck:

[joesmoe]

And with these big engines you really should stretch the frame a couple inches. And t-bolt will build what ever engine you want so if yo want a 150cc semi auto with electric start they can do it and they won't charge you labor on the build.