go-kart

[kimberly]

My sons go-kart stops when he presses the brakes, we had to change the carb. and fuel tank, can't figure it out. Should the flap in the carb. close when he lets off the gas? Thanks for any help. Kimberly

 

[2or3wheels]

Pics would be nice. No it shouldnt die, maybe you have idle screw to low. does it idle when you first start it?

 

[RobertD]

a carb works on a butterfly "flap". The more open this is, the more air is sucked in, which sucks in more gas. it should be closed, or mostly closed when the throttle isn't pressed.

if it dies, the simplist problem could simply be the idle adjustment screw. On most engines, this is the screw that "props" the butterfly open to wherever you want the idle at.

On some newer engines, there may be a max throttle position screw, don't confuse the two.

What kind of engine is it?

 

[kart62]

If the kart only quits when you push the brakes check the clutch for hang up. Basically if it is hanging up the rotation of the wheels will slow the engine as well, and die. I would check the diaphram in the carb if its a pulsa-jet type. a fouled plug can also be a culprit.