frayz

So had the tabs on my radiator welded the other day and flushed the rad put in water wetter and coolant. got the fan goin all the time(coolant temp sensor unhooked). What else do i need to do to make this thing stop overheating? I live in FLA and its not even smoldering summer yet and it was overflowing during our show this weekend! Any help is appreciated.

chadnine

hope the heads not warped or head gaskets blown. that fiixed my buddys 636

Compton82

+1

Have you tested your thermostat?

frayz

no..no ihavent.. i've pretty much just been ridin it. but i gotta tear one of the forks off for seals so ill get a new thermostat then and check for any leaks/cracks around the heads..nething else to look for?

50slut

FIX THE PROBLEM!!!!!!! its NOT the radiator check thermostat or waterpump

Compton82

You can test the thermostat if you dont want to just buy a new one. It could save you couple bucks

old man roger

do you have your overflow bottle hooked up ?

kawis will over heat with out the over flow bottle.

Danger_Dave

guarantee you its the water pump

old man roger

i don't see how the water pump could ever wear out on these , the seal maybe but the pump is just an impeller that doesn't rub on any thing so i don't see how they wear out ...i know they do but i don't know how

Danger_Dave

the one on my gixxer went out on me. i agree i dont understand how they wear out but they do. probably the bearings.

old man roger

the 636 doesn't have bearing it just has a couple mechanical seals and a regular seal and if those go bad it will still pump water but it will leak out the seap hole to let you know the seals are bad , if you let it go too long it will leak into your oil ......

this is on a 636 any way

T-Dubby

Why would that cause it to overheat? Funny thing is my bike probably runs the shittiest but it has hardly ever overheated much.. Even in the 110 heat.

old man roger

it will cause it to over heat because the radiator is just big enough to keep the bike cool when it is full ..

when you are lets say doing a big long *** burn out the temp goes up and the coolant expands and is force out of the radiator into the over flow then once you stop doing a burn out the temp goes back down and the coolant that was forced into the over flow is returned to the radiator ..

if the coolant that was displaced from the burn out can't be retreived then your radiator will no longer be full and will not be able to properly cool the bike...

T-Dubby

Gotcha makes sense..Thanks. Yeah I don't think I have that on mine..

-SKETCHY-

I had 2 03's and never had a overheating issue

old man roger

me either and i live in south florida

T-Dubby

Sadim and Zacky Chan had problems with theirs.. Actually sadims still does I think.. Chan I think he fixed his by replacing the thermostat.. Sadim switched that and still has problems..

siknotch89

Get a honda and ...bam! problem fixed!

CRAZY DAN

ive got a mellon too.

so far ive..

replaced coolant with water wetter & hard wired the fan. i bought another fan to hardwire up and am replacing the thermostat today!

will shee how it runs tomorrow!

i hear the 05 has a bigger radiator...is this true? i bout ready to start searching for a 05 motor and radiator to put in this bitch! if that fails, im going to start looking for a 600rr

-SKETCHY-

Just had a buddy's that had that overheating problem . Everything checked out good. Turned out the head gasket was slightly blown out and the head was warped from the overheating. I got him a headgasket and he took the head to the machine shop and its good to go now.