Warmest weather you've ridden your viper?

[TestMaster]

mine was running really warm last ride out at -1c trails were pretty much pure ice...scratchers arent on currently and needed them.....ran close to full gauge all day, stopped to talk once and shut it off, once restarted i had temp warning and error code temp read 224f.. until i started moving not sure what happened there, but it was fine the rest of the ride back to the trailer....im sure the 1.77 track doesnt help ran 195-206 all day

All engines continue to release heat after being shut down. That heat is absorbed into the coolant in your engine. When you restart soon after shutdown that hot coolant heads towards your radiator and other devices to cool the engine and on the way they pass the sensor as they should. After less than a minute cooler fluid is finding it's way through the system and the temperature falls.

Thanks for sharing your experience. All of the temperatures you are seeeing are normal for the conditions you experienced and the caution signal will warm you that you are approaching a point where the ECU will go into safe mode and reduce throttle response/ operation.

 

[yamahaguy]

Here's MrSleds link of that extra hot TY ride last season that SnoNinja mentioned. No sleds overheated and everyone had a great time.

 

[FrozenTows4]

Thanks for starting this thread.
I am fairly new to the Yamaha 4 stroke game. I didn't think that seeing an almost full black gauge was still within acceptable range. Will take some getting used to.
I mentioned the 195-205 running temperatures to Donny Meyer, the regional Yamaha rep, who goes to our church. He said, "Let the coolant fan do it's job". I guess I didn't read that to say it's OK to have it run continuously. Not the first time I was wrong.
In addition, He mentioned that outboards & PWC's have a problem with "making" oil due to not running hot enough. Blow by builds up in the oil creating the illusion of "making oil" resulting in an overfilled condition. Same thing can happen to our sleds.
Running warmer, 195-205, burns off the contaminates and keeps the oil level closer to normal.
Bonus is it keeps the oil cleaner as well.
Embarrassingly I just had an "ah ha" moment. Our cars can suffer when not sustained, for an extended period of time, at normal operating temperature. That's typically 195-205 and sometimes beyond.
I've even preached that it's bad to Not run at operating temperature for extended periods.
Why I had a mental block, that our snowmobiles are any different, I don't know.
Thanks for everyone's kind explanations for something that I should have known all along.