Kt100 help

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Boatcrazy

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So I traded a ar15 for a vintage Kt100 kart, and a frame. Guy said it has been sitting for 10 years, (had to clean the Magneto to get Spark) so now we have spark and great compression, had a friend rebuild the carb, the motor is all blue printed and I'm pumping a mix of 110 and 90 non ethanol with castor oil. Now when I try to start it it's shooting fuel out of the carb, I get a little smoke out of the pipe, but don't seem to fire at all, I am trying to start it with a drill, it seems to be spinning it good, but maybe not fast enough, and maybe the carb isn't rebuilt right? Any help would be great.
 

Joe-405

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A drill will never turn a kt100 over fast enough. I used a drill on a smaller mc91 style McCullough and burned it up the third time I fired it off.

Might be wrong spark plug or a timing issue also.
 

chancer

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"So I traded a ar15 for a vintage Kt100 kart."

That is all I needed to read. Bad deal. But good for the other guy.

Why? just Why?
 

itsid

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a perfectly set up KT100 will basically start as soon as the wind is blowing hard enough ...

it should start with a power drill easily (just make sure to have a one way clutch on the drill, otherways as soon as the engine kicks in, you might ruin the drill)

Anyways, chances are the Low speed needle is set too rich; screw it all the way in and then back out 2.5 turns;
once the engine is running, adjust it until you get the lowest steady idle and make sure the clutch stays disengaged!

Oh; talking of which, maybe you should put the kart on a stand when you adjust the idle or try to start it, else if the clutch engages by accident the kart will start to move ;)

spitting fuel back out of the carb isn't a good sign..
shouldn't ever happen... too much backpressure on the exhaust maybe.
check if the exhaust is clogged (rats nest in the muffler or something?)

with the exhaust removed, remove the spark plug boot (keep the spark plug in)
turn it over with the drill again and see if the carb is still spitting fuel.

report back

'sid
 

Boatcrazy

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Ok, thanks a lot! I'll be messing with it more over the weekend, will keep you posted
 
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