KAW FH500V-BS11 loses power after 15 minutes

[BBQGuy]

Engine clean.
Have tried removing fuel cap, no help.
Besides cleaning the carb bowl which was very clear, have not cleaned the complete carb.

 

[slomo]

Ignition coil might be weak. Take an old spark plug. Gap it to 6mm or 0.25". Crank the engine over and watch for spark. Should be a nice blue to purplish color. This will load test the coil. Simple 0.030" out of the engine is not much of a load.

TAKE 2

Ignition coil might be weak. Take an old spark plug. Gap it to 6mm or 0.25". Crank the engine over and watch for spark. Should be a nice blue to purplish color. This will load test the coil. Simple 0.030" out of the engine is not much of a load.

slomo

 

[BBQGuy]

TAKE 2

Ignition coil might be weak. Take an old spark plug. Gap it to 6mm or 0.25". Crank the engine over and watch for spark. Should be a nice blue to purplish color. This will load test the coil. Simple 0.030" out of the engine is not much of a load.

slomo

One coil was shorting out when it got hot. Replaced both.
Thank you for all your assistance.

 

[hlw49]

Ignition module breaking down when it starts loosing power pull the plug wires off one at a time and see which one it cuts off on and the other one is the bad Ignition module. U have to diagnose the problem. Diagnostics is 95% of the game.