Atc 70 question.

[Lee350x]

Hey im planning on putting a bigger engine in one of my 70's i was just wondering which brand you guys like best and fits in the easiest...Thanks

[Race Demon]

What do you want to do with it :confused:, I have used several Piranha motors from Wholesale cycle,140 cc or less without electric start, the kits they sell have [about] everything you need right out of the box, most of the time a 125cc is plenty but the 150cc and 160cc motors take alot more work, if you plan to run it hard you should add an oil cooler, it helps the motor last longer, check out the Mad 70s here if you haven't already,

[Lee350x]

I just need to put a new engine on it because my old original engines transmission is bad. I'm trying to find the best engine for a good price range.

[oneroom42]

dratv.com has some descent lifan motors. i think most guys are doing the 110 electric start or the 125. with electric star you have to mount a battery and with the 125 you could adapt the pull starter to fit or cut the fenders and use the kick starter. numerous options with these little machines.

[Lee350x]

Thanks ill look into that. But what do you guys think of jialing motors? Also how hard is it to put the engines in and do you have to cut the whole fender off? thanks

[CRAZY70MAN]

Thanks ill look into that. But what do you guys think of jialing motors? Also how hard is it to put the engines in and do you have to cut the whole fender off? thanks

You will have to cut the kickstart side fender kickstart to clear if that is your only method of starting it or rework it as I did on my 90cc motor. I have heard good thigs and bad things about all the pitmotors, pretty much a personal decision but lots of the Piranha and Lifans are used. I have a YX150 Nitro motor in a 70 and it scattered 3rd gear in the first hour of riding, had a upgrade though and the mad 70 guys hooked me up!! Wholesale-cycle.com is where I purchased mine and most of those guys shop as Demon said above. Make sure you look at what comes with it when shopping because some prices do not include carb, and or electronics as well as some other parts.....ask ??? if needed. You will not be dissapointed..... good luck http://i388.photobucket.com/albums/oo321/andyatc70/th_Picture316.jpg (http://s388.photobucket.com/albums/oo321/andyatc70/?action=view&current=Picture316.jpg) Here is a pic of kickstart, had to index it on the spline forward and cut grind and reweld so it would clear the case. It works well on this motor, pretty short stroke but enough to leave fender stock but is a little difficult to kick on the 150 or any of the larger motors

[Tri-ZNate]

You will have to cut the kickstart side fender kickstart to clear if that is your only method of starting it or rework it as I did on my 90cc motor. I have heard good thigs and bad things about all the pitmotors, pretty much a personal decision but lots of the Piranha and Lifans are used. I have a YX150 Nitro motor in a 70 and it scattered 3rd gear in the first hour of riding, had a upgrade though and the mad 70 guys hooked me up!! Wholesale-cycle.com is where I purchased mine and most of those guys shop as Demon said above. Make sure you look at what comes with it when shopping because some prices do not include carb, and or electronics as well as some other parts.....ask ??? if needed. You will not be dissapointed..... good luck http://i388.photobucket.com/albums/oo321/andyatc70/th_Picture316.jpg (http://s388.photobucket.com/albums/oo321/andyatc70/?action=view&current=Picture316.jpg) Here is a pic of kickstart, had to index it on the spline forward and cut grind and reweld so it would clear the case. It works well on this motor, pretty short stroke but enough to leave fender stock but is a little difficult to kick on the 150 or any of the larger motors

Great info. Mines getting a 160 in the next month

[CRAZY70MAN]

Great info. Mines getting a 160 in the next month Sounds like you went big as well.....what a hoot those big cc 70's are. Good luck.....plenty of options for setups. May I ask what you chose?? Piranha?? Daytona??$$$$$$$$

[86trizinger]

I have a piranha 140 I am getting ready to take out of my 90 and put it in my 70... It's fun in a 90, I can't wait until its in the 70..

[Tri-ZNate]

GPX 160. I lost a link I had, a company had the gpx but you could get it with the klx ports or crf

[Lee350x]

Ok thanks guys. What exhaust can i use on these? Most likely a lifan 125?

[CRAZY70MAN]

Ok thanks guys. What exhaust can i use on these? Most likely a lifan 125? cobra...cobra...cobra.....just what I have been told???? You could use other but if you want horsepower....cobra and that's that!!