Aluli

idling in the garage.

So, I still cant ride due to my knee still from June 10th's accident in Lowman. Anyways, I am concerned as I go out on occassion to start up the bike. This is a different bike, by the way.

It runs so hot while idle.. I could not hear a fan. By really hot, I'm talking 249. When I turned off the bike, it literally sounded like boiling water.

My son had taken the bike around the block July 4th and it sounded perfect. And the temp was within normal range.

Now, how can one hear the fan running?
2nd question: Is it just running hot cuz it was idling for a while, plus its a gsxr, notorious for running hot.

And the boiling water sound.. ?

No leaks.

ConradM

My first thought would be a stuck thermostat.

ConradM

No idea about the fan though....

lil_schmitty

it sounds kind of like a fan running... should kick on between ~215 and 220. there should be a noticable amount of warm air being pushed out the hole in the mid fairing.

Aluli

I do notice the warm air perhaps..
What about the boiling water sound..

I wish I could take it out for a spin to see temp.. but, I can't.

CRAZYACE595

The fan on my 2003 gsxr 1000 dont kick on until it hits 220. The only time i ever got it that high was to check the fan and make sure it was working.Took it quite a while idling in the garage to kick it on. I can visually see my fan through the right side fairing. The bike mostly runs at 180 and does occasionally get up to 190's in town in hot weather.

Mikey

Post up a night you're free and maybe one or more of us can swing by and look at it for you. I know I am available tomorrow after 3ish, or anytime Friday. Diagnosing something over the internet is notoriously difficult, but it sounds like your fan isn't kicking on. Check fuses and wiring to ensure nothing got unplugged.

Aluli

Ok. I'm working tomorrow 11-7pm. More then likely next day off is Sunday.

Mikey

I'm going on the memorial ride sunday, but can swing by on my way back through Boise. I'll see if I can drag a couple extra BRN members with me, If you would like us to that is. If you want to do this just PM your adress to me or feel free to text me. My numbers in my profile.

RedStar

Hows the fluid level?

1. I would just hardwire the fan to make sure it works.
2. Make sure fan is sucking and not blowing (I had this issue on my R6 and it would cause bike to overheat fast)
3. I have never had this issue but I have read before that a bad radiator cap can cause a bike to overheat.
4. If none of these fix it. Try to remove the thermostat and run bike without one. See how that goes.

Pimpit

With no airflow (sitting in the garage) the bike will get hot no matter what. Every Suzuki I have owned, the fan kicks on at 220, and kicks off at 200. If it is boiling, you might consider flushing the coolant, since you probably don't know the last time it was done, or if its been done. If the fan isn't kicking on, you can hardwire a switch (so helps during summer). As far as gsxrs notorious for running hot, mine stays in the 175-190 range and on hot days gets up to 210 unless i'm in heavy traffic, then it pushes 225. Only time it haw been over the 230 mark was at the dyno, and the burnout comp.

Aluli

I didn't actually hear the fan running. Going to look more into that and checking the fuse. Coolant flush sounds like a good idea. Thanks, everyone for all your input. We've had 6 Suzuki's in the family. Gsxr 600, 750, 1000, 2 SV's and this 600. The 750 was stolen and when it was recovered, the trip to Carl's it ran at 250 because the thief blew the fan somehow. All the other bikes ran the normal 200-210. Having had the SV last, no fan. So, I'm not really tuned into hearing a fan, but I'm thinking it isn't running.

Aluli

And, agreed..no airflow in the garage!

Pimpit

What oil are you running in them? And are you just wringing the piss out of them, or in stop and go traffic a lot? Not being argumentative, just curious. Or maybe only riding in really hot weather? I still have the 6 yr old OEM coolant in mine, and the only time it really gets to the 200s is on really hot days in stop and go traffic. But I also stay in my low rpms in town too. My bike is to loud to not be under 3k-4k in town lol

The emoticons tell the story pretty well

Pimpit

Also, I loved having my fan on a toggle switch on my 01 750. Made it nice for when it was really hot out to keep my temp down. But lesson learned the hard way, constant fan+low rpm stop and go+ brights= battery drainer. Damn the one time I took it to the cruise lol

311gator

Definitly sounds like the fan isn't kicking on.

Aluli

Not wringing the piss out of them. I meant normal 200-210 as the hottest like in stopped traffic. This bike, I just got. No idea what oil is in it. I've never done coolant flushes on any bikes ive had.

Just sounded like an idea since I don't know what's inside. I was told the bike was serviced at Carl's since purchased. When I have done oil changes on the SV, I got what Carl's suggested for the bike.

I'm hoping its just a fuse.

stubby

Before hard wiring your fan or changing coolant, properly bleed the system. An air bubble will still allow the fan to come on but make your bike run hotter than hell. Start with the basic easy stuff and work your way up. If it got hot quickly while at an idle, I'd be more concerned about your water pump and impeller than the fan. The fan can only do so much, but if your water pump isn't working correctly your fan won't keep your bike from overheating. If you have a lot of air in the system, it can make your thermostat seem faulty.

Pimpit

Welcome back to the forum.


I agree with starting with the easy stuff. The hard wire idea was because I had a bad switch, but was nice to have.