Ok, I have to know, is anyone else having issues with the Temp light coming on while out and about?
My wife follows us from mud hole to mud hole and takes pics while we are running around on our quads and getting stuck. She is about as anti-mud as you can get so she rarely ever actually gets in the mud with us. When I took the Viking in for it's 20 hour service I noticed it was overheating (light coming on, fan running nonstop, Overflow bottle lid missing) so I asked them to take a look and see what the cause was. The dealer immediately said that the radiator was packed with mud (actually it wasn't, it was more or less dust that has gotten between the fins and looked like mud). They pulled the radiator, cleaned it out and then re-installed with fresh antifreeze/water. Everything was done under warranty, so no charge to me (props for a good dealer here).
Every time we have taken the machine out since, at some point during our riding, the overheat light would come on, usually for only a few seconds. A couple weeks ago (roughly 50 hours on the machine), the light came on and stayed on unless I took the machine and parked the rear practically underwater. The radiator was cool to the touch, but as soon as the engine hit water, instant steam cloud. Called the Dealer on their next open day and he said to bring it in and they would look at it. The next day he called me back and said that he had spoken to Yamaha directly and explained the issue and they informed him that when the machine overheats like mine did, it usually bends a pin in the thermostat causing the issue we were seeing. He ordered a new t-stat and we scheduled the service for the following Tuesday morning. He had the machine for a couple hours and he and I agreed that instead of Anti-freeze/water, we would refill with Engine Ice to add to the cooling capability. He assured me he ran the machine at idle for over 30 minutes and no temp light came on.
Took the machine out today for it's maiden voyage with the new T-stat and Engine Ice installed. About 2 hours into the day, once again, the temp light comes on. If the machine is sitting at idle, the temp light stays on (with the fan running non-stop). The minute you rev the motor the light would go out. Tried running the machine through water to cool it off, did nothing, literally 2 minutes after running multiple passes through water that was 2 inches above the drivers floorboard, the light was back on while idling and would go out seconds after the engine was rev'd (even if the revs were being done in neutral).
High temp today was 66 degrees with a feels like temp below that because of the wind.
Has anyone else experienced anything similar? Any ideas? I intend to call the dealer on Tuesday when they are open again, but I am at a loss. It almost seems like there is a blockage in the motor itself or something.