G16A loses power after it warms up

[jayb]

Hello all,
My cart loses power after it has been run for about 30 minutes or has been loaded down. Some background on the cart:
It was rebuilt this last year, we installed a 6" Jakes Lift new 22" tires, swapped out the rear end gears for some high speed gears and added a torque kit. We also replaced the Carb, fuel pump, and all fuel/vacuum lines.
After the cart was reassembled, it ran ,fine for a couple of weeks then started losing power. it is acting like it is not getting fuel but i have checked the fuel pump and drained the tank and flushed the lines.

any ideas are welcome.
thanks

[Mike Mac]

22 inch tires and tall gears will pretty much do that.

[jayb]

I probably should have worded that post differently.

The cart runs fine, plenty of power when I start riding it but after it warms up it begins to sputter and then loses all power, the starter will engage but the engine will not crank. If I leave it sit for a few hours it will crank right up.

also when starting from the first time of the day and while it is operating it takes a bit of working the gas pedal to get it to turn over, I have read some posts with similar issues and some think it could be the ignition coil. How do you check the coil?