My cooling fan used to work, I think, but I ride pretty hard, and haven't heard it come on in over two months. Should I Take it out and save some weight, or pull out the automatic sensor, and put a direct current switch on it? I really don't think It works, but how affective is it? Will my engine overheat?

 

Took mine off about 4 months after I bought it, 3 years ago and haven't needed it since, even with the race mod motor.

 

My fans come on all the time when we are in trails.I would get a manual (they have diagrams on how to check all the circuts)personally i think the weight of a fan is so little it wouldnt matter.Better safe than toast a motor.

 

my fan doesnt work ether, i have seen it come on once. But then again it has been snowing so maybe it isnt hot enough yet. Also when you are hauling *** there is a lot of cool air coming right into your engine. I do like the idea of a direct switch though.


1999 Trail Boss 250 looking to modify soon

 

The cooling fan's a good idea, really. the engine will get hotter in the summer and all but looses cooling capacity as it gets coated in dry mud.(caking on the cooling fins no matter what type or where) After the mud coated condition sets in it's imperitive to have assisted cooling in slow terrain.

 

the fan on my 2000 scrambler 400 almost never came on unless i was climbing hills in the woods (working it at a slow speed and its warmer than 85*F) if you're temp light isnt coming on i wouldn't worry about it, its probably working fine it just isnt getting hot enough to need it, also if you bought it new (or bought it from someone who kept track of they're stuff) you should have gotten a wiring schematic in the supplement to the owners manual, (you're dealer should have given it to you)

i would send you a copy but it went with my scram when i sold it, if you dont have a copy im sure somebody on here can get you one.

later

 

just my 2 cents if its broke fix it and dont take it out I ride in cold conditions all the time I live in Minnesota Just last night i was ridng on a lake in 9 degree weather doing a little 4x4ing through the snow and it came on several times Id say if the motor is getting warm enough to turn the fan on in those conditions with snow flying up on the motor for additional cooling it is important I guess id ask how long do ya want the motor to last?

 

Rick Ritter sells the aluminum snout. You basically cut off the first ring of the "snorkle" and install the aluminum snout. Just my two cents, I've had great luck running the slip-on K&N with the water repellent Outerwear (there are two kinds one isn't water repellent). Remember to use 409 to clean your K&N's, buy it in gallons and keep covered in a gallon ice cream pail....many uses and less expensive than the K&N cleaner.

Good Luck
Ken

 

Ooops, posted for the airbox under the fan post...da,da,da. If you're running any kind of billet aftermarket cylinder head, you can mix in some Red Line Water Wetter and your temps should be just fine. You can also install the inline billet "heatsinks". Be carefull the Water Wetter doesn't have anti-freeze properties, so make sure to mix in some of the green stuff in the batch. Hard trail blasting this last summer in Minnesota during 95-100 degree days, and the quad behaved just fine...or so my streching elbows told me.

Good Luck,
Ken