This may be a dumb question but how do you read the positions of the fuel shut-off switch? Is up "on" and down "off"? The manual says nothing about it.

Also, my sons Hensim 50cc atv seems to stall out when he comes to a stop but is able to start right up after that and keep going. Can anyone advise if this is a simple carb adjustment or something else? Thanks.

 

As for the fuel shutoff that may be tricky but all you have to do is disconnect the line after the valve and turn the valve. This will be the best way to see. For the hensim it sounds like the air screw needs adjustment and the idle. What you need to do it start the quad and let it warm up. Then turn the air screw out till you hear the idle increase. Keep turning till no change in idle then back in about 1/8 turn. Then you can lower the idle till the quad does not creep anymore.