I have a 17 sportsman 850 sp NEW body style, 44 hours 290 miles. I have sya snorkel kit, HD pinion cover, air box lid seal upgrade, GSE muffler (no tuner, stock air filter, says does not require neither to be upgraded) and 27 inch outback max. I rode it at our local atv park that is mainly mud/water. I submerge it all the time with no problem I’ve had it above the handle bars and cluster for 10 minutes in a freezing pond never failed on me. Yesterday the engine light came on when I got it under water in the same pond as I mentioned above. The throttle was limited but didn’t see to lack engine idling or power. Just as if it were in limp mode. 5 minutes of riding back to the truck, the light went away and had full power. I opened the air box lid and it was dry as ever, engine oil was clean no water. It has done this twice the two past recent rides but only when under water at low idle just floating through. And went off shortly after I was out of water hole.
My logical guesses are maybe:
1. cooling fan motor is tripping bc it can’t turn while under water? But the engine temp drops to 110-135 degrees while in water. Will that cause fuel problems?
2. Something is getting shorted? But I’ve had it under water several times before never gave trouble til now.
3. Engine is getting too cold? Water is super freezing right now.
4. My gse muffler with no fuel tuner causing my engine to idle lower bc of the extra back pressure from trying to exhaust out under water?
My logical guesses are maybe:
1. cooling fan motor is tripping bc it can’t turn while under water? But the engine temp drops to 110-135 degrees while in water. Will that cause fuel problems?
2. Something is getting shorted? But I’ve had it under water several times before never gave trouble til now.
3. Engine is getting too cold? Water is super freezing right now.
4. My gse muffler with no fuel tuner causing my engine to idle lower bc of the extra back pressure from trying to exhaust out under water?