Is overheating a little at idle dangerous

[tundra]

Saturday night, when loading my sled, she idle for about 7-8 min then she died. I restart it and far right orange light with oil sign(not sure is this is overheating) was on, i loaded her in the truck and go back home. Temp was about -3°c.

the next morning i when unloading it at home she was hard to start, she turn but not starting, then she start, when the temp light was gone, i hit the trottle then she died. Restart and no problem. But my extension was a little messy, some oil on it, little drop everywhere.

Am a little worried.

Dealer said dont worry, motor is bulletproof, but now is on warranty, better to be fixed on trouble right now than next year. :?

 

[smokeless1]

Saturday night, when loading my sled, she idle for about 7-8 min then she died. I restart it and far right orange light with oil sign(not sure is this is overheating) was on, i loaded her in the truck and go back home. Temp was about -3°c.

the next morning i when unloading it at home she was hard to start, she turn but not starting, then she start, when the temp light was gone, i hit the trottle then she died. Restart and no problem. But my extension was a little messy, some oil on it, little drop everywhere.

Am a little worried.

Dealer said dont worry, motor is bulletproof, but now is on warranty, better to be fixed on trouble right now than next year. :?

Hope you get her fixed. I would take pictures and "document" the problem, so you can take this to the next level, if you need to, or if it re occurs again next year out of warrantee. Seems Yamaha is not too concerned about fixing stuff once your warrantee is gone.

Now go get one of those $12 mirrors and fix that missing mirror before you hit a caribou.

:ORC

 

[LazyBastard]

When it overheated, it didn't really overheat. The computer shut it down before any damage happened. The reason it was hard to start is that there was VERY HOT coolant in the carbs - after it died the gas bubbled out of the carb bowls.

 

[jtssrx]

Over heating it once shouldn't hurt it. It is very bad to let it get so hot it shuts it's slelf off. If you did this a lot you'd loose your rings. I lost mine due to over heating!!


Oh Ya Yamaha is aware of the porblem but they refuse to add a heat exchanger becuase they want to keep the weight down. Makes no sence

 

[jtssrx]

LazyBastard: Not sure about that. It's shuts the sled down when the temp gets to high that's for sure

 

[tundra]

i have the rear heat exchanger

Is'nt very bright from me to let her running, i forget it, we where talking a bit.

Dealer said almost same thing than LB, but for the oil spitting by the muffler ??? Dealer said that probably condensation has formed in the breather tube, due of high temp, then frozen (temp was gone to -20 during night and some backpressure build up at startup and oil came out by exhaust.

Thanks for the reply, i'm slowly starting to lower my worrying level

 

[LazyBastard]

Thats the whole reason it shuts itself off. If it really overheated, it would shut itself off by seizure or detonation rather than a controlled ignition cut-off. That would be bad.

 

[tundra]

i dont see how it can overheat like this during at max 10 min of idling. at temp below zero. Dealer said to change oil, to avoid gaz in oil.

 

[LazyBastard]

If it has been run since this happened, then the gas has already all vaporized and blown out the vent.... though it never hurts to change the oil/

 

[tundra]

Yeah rode for about 5 min. Out of truck then almost directly in garage

 

[LazyBastard]

Thats probably not enough to do it. Check the oil level, if its high, you probably have lots of gas in it. If its not high, run it.

 

[ReX]

If idling, it should shut down before it overheats, not after.

The computer shuts the sled down after 3 minutes of idling when the water temperature is over some safe temperature. I think the temp is 100°C or 210°F (about 2/3's of the way up on a cars guage).

While idling that's not hot enough to do any damage (pistons and rings will be much hotter running accross a lake with the coolant at 190°F).

We came to some brush we needed to clear one evening and I let my sled idle for a few minutes and it shut down too. Only problem was no headlight for clearing the brush... I put snow on the running boards when we came to the next pile of brush.

In case it was your oil light on you might want to check the oil level.

 

[jtssrx]

In my mind there is only one reason for the sled to shut off and that's because the coolant is to hot.


exsample you just ran your sled 10 miles. You come to a stop and you get off to talk about which way your going to head next. If the sled is cool it will continue to run. If it was hot when you stopped and by sitting there idleing it exceeded the programmed shut off water temp it would then shut off.

hell I've had mine shut off on glare ice when I'm comming up to the trailer to part. I tried to use my feet to spray snow and ice up on the exchangers but it didn't work.

 

[ReX]

I'm not positive, but I believe there are two temp related shut down conditions.

One is simply idling for 3 minutes while slightly above normal operating temperature.

The other is substantially overheating where the light has been on for a while and you're still driving it.

The first one is discussed in the owners manual, the second I read somewhere.

 

[LazyBastard]

jtssrx.. the only reason why it shuts down is so that it WON'T overheat.