Ryan S

anybody have a 636 that likes to run HOT?? i'm talking like running around 220 for a while then jumping up to 235 after about 15 mins of high idle in 80 degree outside temps??

i have the thermostat out(race bike style) hard wired fan, water wetter(tried regular coolant, same ****)

any help or advise would be appreciated.

TimsKFX400

is ur exhaust on? may sound stupid...but this past friday...jordo from cc, tx was here...his exhaust fell off and his bike started running hot as fk. after we put the exhaust on...it ran great.

JackassRR

220-235 while stuntin on an 80 degree day does'nt sound bad to me. Even at 15 min of high idle it sound about right.

Metzger

Yeah 220 sounds right, but i dunno about 235. Dunno what the problem could be...

DoodleF4i

thats about the average what i hear people say their bikes running at..i normally park it in the shade if it gets above 240

SIC Nate

Those temps dont sound to diff from mine either, but I run Engine Ice instead of water/coolant/water wetter, etc. and have had better luck with it. Also you can add another fan..maybe even have the added one on all the time and the stock one hooked to your normal temp sensor so they both run only at high temp.

Also if you are causing high temps, you could make a run up and down the spot your at to bring the temp down quick.

T-Dubby

Yeah I noticed that too mine runs at 220. I'd do some stoppie runs to get it down some

KROHNSTUNTS

Mine runs 220 or so, unless I start rolling burnouts

Ryan S

how would you go about mounting another fan on the radiator???


i do try to cool it down with stoppies, but it doesn't help much cause the clutch is in and i'm rollin a ways, when the clutch is in the water pump isn't pumping as much....it just pisses me off, guys with f4i's can rock till they get tired, i have to park the ***** when it starts flashing 240 at me!

Kyle_PBZ

Put the thermostat back in dummy! Or atleast a restictor to slow down the flow of the coolant so that it has time to dissipate heat through the radiator. Without the stat it flows too fast and doesn't have time to cool.

Jordo636

What you need to do is make a switch for your fan so that it stays on all the time this will make it run alot cooler. Make sure your exhaust is on also as stated above I ran into that issure this weekend.

Ryan S

my fan is hardwired on at all times already



racebikes run no thermostats???? i thought that the thermostat was to allow the motor to get up to running temp faster? but after it's warmed up it stays open all the time from the pressure(thus that big *** spring that operates it)???

SAMBO

you need that thermostat or a honda.

SIC Nate

Most bikes have the stock fan on one side of the radiator, so you usually have room to add a second fan on the other side. You should be able to grab at least one factory mounting point and then use metal straps from the fan housing to the other mounting points on the radiator.

I have my stock fan to the factory temp sensor and an additional fan on all the time with ignition. Also, as I said above, we have had good luck using Engine Ice intead of colant/water or water wetter type products. You pour Engine Ice in straight and don't add water...runs quite a bit cooler (a bout 10 degrees or so)

zrex

racebikes run the thermostat just like any normal everyday bike.
the thermostat is open only when it needs to be open. "to allow the cooled water in the radiator to flow into the engine while the HOT water in the engine is allowed to flow into the radiator to be COOLED. the big *** spring is what regulates this operation.
put your thermostat back in and run your fan as you have it. would prob. work best in your case to run the waterwetter,engine ice etc.