636squid

Thats not right, it shouldn't run that hot just sitting there idiling for 45 mins. You're fan should be able to control anything but constant burnouts and bouncing off the rev limiter.

GSE Nick

maybe a little but 05/06's are over heaters for sure. as soon asi start doing burnouts before all the mods it would shoot up to over 250+

then say if we were doing shows on hot days on smaller riding areas where the bike cant get good air movement ha forget about it lol.

Suicidal Antics

you cant just put 2 stock fans on an 03/04 636. The fan will bolt up fine to the rad. then when u go to put the radiator back on the bike, you'll see that the fan is going to hit the cam positionign sensor. I tried messed with it for a while, then gave up.

The only thing i can thing of is running a Pusher fan on that side of the rad, but that might not fit if you have full fairings.

krazykyle85

my bike runs hot all the time. i was adding supports to my radiator last week and found a 3mm (roughly) diameter pin with a spot for a circlip on the end. maybe 18mm long. the onlything i could think it would be is from the thermostat. im going to take apart my cooling system and check it out. but im hopeing thats what the problem is. a garbage thermostat or something...

so id say check that out... or if your radiator fins are clogged. or maybe your waterpump impeller is gunked up hahahaha seot i dunno.

krazykyle85

like i said earlier thats why im tryn the 06 R1 fan with custom mounts

Cincykillz

i hardwired my 06 636 and never had a prob. to what krazyklye said my buddy has a 04 636 with fan hardwired and it constantly overheated turned out to be the theromostat was bad took it out and with the fan hooked up it doesnt go above 200 in 80 degree weather

Cincykillz

and i could be wrong but a thermostat only helps the bike warm up and when it reaches a certain temp it opens up and lets cool antifreeze in the motor so if you live somehwere warm you really wouldnt need it right?

Suicidal Antics

a thermostat also slows the flow of coolant down. so it stays inside the engine slightly longer. this gives it a little extra time to pull more heat out of the engine before moving onto the radiator.

Withuot it, the coolant flows freely and doesnt spend as much time in the engine, pulling heat out of it. I'm currently running without a t-stat here in maine, but im az bound saturday, and will put one back in before running the bike out there.

dan636

My is...
The best way to wire up a switch to the fan is to tap into (do not cut) the 2 wires going to the fan and run those to a switch that way even when your switch is off the bike will be able to turn the fan on when it senses it needs it. PM me if anyone wants pics

old man roger

thats how i have my 03 wired but the 05 06 is a little different

-SKETCHY-

Mine gets hot from drifting and sometime during circle combos. I am running gauges and if it hits 230 I do a couple laps around the building to cool it off. I gotta do this header wrap but I'm lazy about pulling off the cage, side fairings, and radiator,

Twite

I run header wrap and engine ice with my fan on constantly. If you rape high idle (like me ), that isn't good enough.
The 03/04 radiators definitely have tabs to mount a 2nd stock 636 fan, but it adds a LOT of weight. You need a radiator cage to hold the whole thing. (you need a mounting cage with just one fan)
I know some of you guys have them, post up some pictures.
I'm working on one myself, I'll post some pics when I finish, but trust me, it will be ghetto-fabulous.

Some ideas/pics in this thread: https://www.stuntlife.com/forums/2-s...light=radiator

birdie

i put a 2nd fan on mine and the tab broke, which pulled a load of fins, and rad is bollocksed

wish i'd braced my rad now

Twite

lee majors

nice! does it work?....and are those cpu fans??

Twite

I have no clue what they came from. Found them in a huge pile of parts at my friend's shop. I think they are automotive because they are 12v.

big ben

how about getting braces for those ''pearly whites''??

lee majors

got it. just wonderin if they were sealed(waterproof) motors is all. all together nice job

$$$$DINO$$$$

my **** went to 268..i found out that the fan was not turning on at all..

636squid

E-Brake put to fans on his 05-06 with no problems. I'm not sure if the -03-04 is the same but I'm sure you can do it somewhere.