Nytro high temp light showing, need answers.

[kyle4q]

It's been cold riding in northern mi. lately. My temp. light came on the other day so obviously I checked coolant and overflow levels, everything checked out good. Lots of snow for cooling and motor has never been apart (so no air in system). So what do I look for now?? Thermostat?? Sensor?? The light will cycle on & off but it's probably the fan helping out. Just don't want to overstress or cook my motor. K&n filters & fuel programmer are the only improvements made, but they've been on for over 3 years/5000 miles without so much as a hiccup.

 

[Tyloooor]

Check the front heat exchanger and make sure it isn't covered in ice.

I had this same issue, so I installed a second tunnel heat exchanger and haven't seen the light come on since...

 

[Dr. FeeLGooD]

They do come on with plenty of warning, not really too hot, it is just giving you a heads up. Is this happening in the deep powder, or just on frozen trails? I installed a Mountaintech rear cooler as my temp light was coming on while trail riding, and it has only come on once since.

 

[Sevey]

I was out on a -25 degree C day, on a rail bed packed real hard. You would never think the light would come on but it did. There was not enough loose snow coming up for the heat exchanger I guess.

I notice when its colder than -15 C, the icing in the tunnel is bad and can severly block snow efficiently getting up to the front of the tunnel.

Was this a possible issue for you?

I would have thought the rad, with that kind of cold air to be had, would have kept the temps under control but I was wrong....

MS

 

[Dodge Ram]

I was out on a -25 degree C day, on a rail bed packed real hard. You would never think the light would come on but it did. There was not enough loose snow coming up for the heat exchanger I guess.

I notice when its colder than -15 C, the icing in the tunnel is bad and can severly block snow efficiently getting up to the front of the tunnel.

Was this a possible issue for you?

I would have thought the rad, with that kind of cold air to be had, would have kept the temps under control but I was wrong....

MS

X2 on this. Are you riding in loose snow? I had my light come on once from Fredric once on very hard packed snow.

 

[mcamzr]

My light would come on all the time last year so I put a temp gauge on and I was running in the 200's all day. Over the summer I put the MountainTech cooler on and so far this year it hasn't go over 172. That includes a 20 mile ride around my house with me and my 2 boys on the sled and a top speed of 40 ish. The cooler is the answer IMHO, the front cooler isn't big enough and the rad can't get enough air through it.

One other thing I thought that helped was the ip vent. Now when I stop I can see the heat coming out and steaming up the gauge.

 

[phibberz]

Tunnel exchanger is great...another idea..

I had issues of the same....I went overboard and did a few mods last summer...installed rear tunnel cooler, IPVent, replaced coolant to ensure proper mix, and installed duraflex scratchers and a temp gauge...

I can say that I do not have any issues now after a brutal first season...I don't ride hard and the temp this year so far has only went into the 170 range..mostly in the 150 range...

i can say the scratchers typically drop temp easily 15 degrees when I drop them on roads etc...great tool to help...easy install and I think about $75...there are cheaper setups I am sure...I am impressed with the duraflex though!

Let me know if I can be of any help - I ride an 09' Nytro RTX SE

 

[canoehead]

Have no idea what your even riding? Perhaps old coolant??