Drive chain question - Coleman KT196

[Craddock]

Hello,

My kids have a Coleman KT196 that I'm constantly working on because it runs constantly when the weather plays along.

I grew up without go karts, only had power wheels until I had my own car. I'm mechanically capable, but less experienced with anything chain driven. So last year when we got the kart, it ran great forever, but breaks more often as time goes on.

The most recent issue is the constant chain breaking and jumping. It's one or the other and I'm looking for someone with experience to maybe throw me a better idea. So my daughter drives the go kart around our yard and it's not smooth everywhere. Some places it's bumpy as hell.

If I adjust the chain to where I'd expect it to be based on my other experience in life (chainsaws, etc) to where it's not loose, but has some movement, she drives 5 minutes and it jumps the chain. If I go to the other extreme and make it tight it'll run for 10 or 15 minutes and break the chain.

I've changed nothing chain related except the chain itself when the old rusty one broke, so I'm lost. Can anyone point me in a good direction? What chain brand do you all suggest?

Thanks

 

[BaconBitRacing]

Hello and welcome! That seems to be quite the popular kart. I'd say your issue is engine mount flex. The chain should be adjusted like your chainsaw, not too tight, not too loose. Go ahead and check the entire chassis with good lighting and a strong flashlight for hairline cracks. Your sprocket could also be worn. If you can get us folks some pictures of the sprocket we can eliminate that.

 

[cswansen12]

Make sure that the drive gear and the receiving gear are directly in line, If somehow one moved slightly, it will cause the chain to fall off continuously.

 

[Denny]

I would like to see some pictures of the sprockets and chain also their alignment first before I just go making random guesses.

 

[pearl111]

Go karts are know for strong vibrations. Sometimes the motor mount bolts will work loose, like the other's said check to make sure everything is aligned, all bolts tighten,.... most important thing, like Denny said please show as many pictures of the.... project/area...you're working on.

 

[jon2523]

I'm brand new and just started this thread yesterday (https://www.diygokarts.com/community/threads/coleman-kt196-jackshaft-delete.47316/#post-591998). We are having similar issues with our KT196 (you can see pics in the thread). My issue is my sprockets aren't lining up because of welds cracking. My chain is jumping off because of it. Not sure if that's the same problem you are having, but sounds similar. Might want to check for welds failing.

 

[Denny]

Look in the jackshaft delete thread for answers. Sounds like you have the same problem. Watch for a fix there!