It might be on energy saver mode!
alternater is shot
ECU is probably bad.
Sounds like an electrical problem - maybe coil
Depending on the size of the room a dehumidifier runs around $150. Where are the floors 'rotting'? There may be a better explanation than moisture from the air. This needs to be checked by a professional as you do not want mold growing under the floor.
Ignition module
If the Polaris 50 Scrambler only runs for about five seconds and shuts off, it could be a problem with the idle setting. This type of ATV has an adjustment screw on the carburetor for turning the idle up. This should fix the problem.
It could be the fuel pump you should check it and make sure.
check for bad crank sensor!!
Start both sand clocks off at the same time. When the 7-minute clock runs out turn it over. When the 11-minute clock runs out turn it over. START TIMING. When the 7-minute clock next runs out it will have been 3 minutes.
mine did the same thing i replaced the crank sensor and it runs fine
check for cracks on any vacum lines.