KT100 push start?

[Rollie]

I have a KT100 motor on a kart that i got from a friend. The threads on the crank are cracked off. I was wondering if there was a sprocket with a set screw that i would put on the crank without the clutch, and just push start it? I am new to these karts so any advise would be great!

 

[jr dragster T]

Aren't most of these KT100 karts push start anyway?

 

[Rollie]

Wish i knew... Cant find much on the internet. I would rather not buy a crank if i dont have to! Im low on cash so im going for the cheaper way out.

 

[anderkart]

Most guys that race these motors use a remote kart starter on the nut that holds the clutch on. You could install a gear and push start it instead of running a clutch but which threaded end of your crank is damaged/cracked off? (is it the end that holds the clutch on?)

Heres an illustrated pic of your engine: http://images.google.com/imgres?img...n&rlz=1T4DMUS_enUS221US222&sa=N&start=20&um=1

 

[Rollie]

Its just the threads on the crank.

 

[anderkart]

I talked to a guy that runs KT100's. He said the early production KT100's had a flat non-tapered PTO shaft that you could easly install a drive gear secured with just set screws. Evidently the newer production engines have a tapered shaft where the clutch or gear would mount, he said these might be tougher to locate and mount a set screw gear without being able to use the nut securing it.

Another thing I learned is these engines have the same type of PTO shaft on each end, and you can change the engine over to mount and run backwards... Doing this would let you utilise the crank shafts good threaded end so you could secure any standard KT100 clutch or drive gear you wanted. So it sounds like you could run your clutch and just get a race kart starter to fire it up without having to repair or replace your crank.

 

[Kenny_McCormic]

You need a bolt to hold the clutch and flywheel on their tapers. Get it heli coiled.

 

[Rollie]

Heli colied?

 

[jr dragster T]

Just tap the end of the crank for a internal thread. I don't see the need to heli coil that.