I' m new here, so hope someone can help me. I bought my son a TaoTao ATK 125 go cart a few weeks ago. My friend has a Pawn shop which sells this brand. He sold me this go cart knowing I'd have to do some work on it. It's been sitting in the back waiting on someone to work on it for a number of years. They ordered a new engine for it and installed it and that's all. In the mean time, they would rob parts of it for other atv's. The go cart looks brand new with no wear on any of the tires and brake disks. I ordered all the parts that were missing and put them on a few weeks ago. I had to bypass the kill switch to get fire to the silenoid. Once I did this, the engine started right up and idled just right. The gears showed on dash correctly and my son started riding it around the yard at low speeds for about 15 min then we put it up til the next day. He rode it for the next few days in the yard until we could get him a helmet. After we got him a helmet, he was able to ride it on the road. After riding it around in the neighborhood, the go cart came to a halt after shifting into 2nd gear. I rode it around the block and it started shifting into different gears without shifting it myself. I read that putting regular oil into a engine that has a wet clutch can make the clutch slip. I drained all the oil out of it and put ATV oil in. This is where the problem begins. I started the engine and it revved at a really high speed. I pulled the chock out to get it started and revved at an even higher rpm when I pushed it in. Please help me!

 

I'm having same problem please help

 

The most common cause is you accidentally pulling the outer throttle cable out of it's seat in carb or control box, when working on the engine. Other causes are an air leak in the inlet manifold or someone altering the idle speed screw. People do this if the idle speed drops, instead of finding out why, usually a partly blocked jet. Jet clears and all of a sudden the idle speed shoots up.

 

thanks a million that was exactly the problem. now I figure out I'm guessing my clutch is bad cause I put it in forward or reverse and it don't move

 

I gave several alternatives, tell everyone which one cured the problem.

Clutches usually slip for a while rather than give up suddenly, so the fault may be anywhere in the transmission. Are you sure the gear linkage is actually moving the selectors into gear?

 

There should be a clutch adjustment screw sticking out of the center of the clutch housing. There are tutorials on Youtube to set that correctly. I'm not sure if it's possible to not have any friction at all though within the adjustment range, so might be something else.