Hi there, I own a CFMOTO Swat 600 but can't find much info on this side by side. I was hoping I might get a little help here. Recently my bike began running hot, the radiator fan wasn't cutting in so I bypassed the fan from the temp. switch so that it came on as soon as i turned the key on the bike. It didn't help. I also replaced the Temp. switch on the radiator but it didn't help. I drained the antifreeze and took the outer housing off the water pump, the pump looked fine and if I put a wrench on the center nut of the impeller I can turn the impeller & crank shaft. I'm guessing if the crankshaft turns when I turn the nut then the pump should be working when the bike is running. Can the pump not work even tho' the crank turns on the nut on the impeller?