WR radiator fan almost always on in trails??

I ride my WR250R in trails, mostly tight stuff, 1st and 2nd gear... i have a rad guard and skid plate.... and the radiator fan is almost always on...

Anyone having the same issue...

In what temperatures do you ride?

mucker wrote:

In what temperatures do you ride?

A couple of rides were pretty cool like 15 celcius (60F) and the fan was on maybe 20-25% of the time, and last weekend was a warm one, maybe 27 celcius ( 80F) and it was on 50-60% of the time... maybe more

Same thing with me. When going slow there isnt much wind going over the rad, guard or no guard, so the fan is coming on alot to cool the bike. I would be more concerned if it WASN'T turning on at all. I have a in line coolant temp on my bike. As soon as you hit a part of the trail where you can open it up, the temp drops up to 15deg sometimes. My bike sits at between 98c -> 103c when riding tight single track. We are only in the low 20s right now to. Summer we can reach 38c so that will be the true test on this little bikes coolant system.

I don't see the fan coming on as a problem. My $0.02

racerdude413 wrote:

I ride my WR250R in trails, mostly tight stuff, 1st and 2nd gear... i have a rad guard and skid plate.... and the radiator fan is almost always on...

Anyone having the same issue...

What brand of rad guard? I have the moose racing one and my fan only comes on at very low speeds. The devol one looks like it might cause some restriction, but I don't have one and can't really say for sure.

I have the flatland radiator guard...

racerdude413 wrote:

mucker wrote:

In what temperatures do you ride?

A couple of rides were pretty cool like 15 celcius (60F) and the fan was on maybe 20-25% of the time, and last weekend was a warm one, maybe 27 celcius ( 80F) and it was on 50-60% of the time... maybe more

Sounds like mine acts similar to yours.
...And I will only worry when the fan doesnt come on too.

well i just wanted to make sure i wasnt the only one...

Same here. Mine runs quite a bit when going slow, even in relatively cool temps. Normal.

I have the stock radiator guard and mine always seems to be on as well. If I'm not riding consistently at 3rd gear speeds it comes on pretty quick and pretty much stays on.

I went out for my first tight trail ride.. mostly 1st and 2nd gear.. my fan turned on for the first time..