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Old 03-25-2007, 05:01 PM   #1
adamrc51
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running temp worries....

So I just picked up a 2004 750 GSXr a few days ago and must confess I dont really know much about it as I am switching from an 01 RC51. I am concerned with the temperature it it hitting when I'm not just cruising, and I have yet to hear the fan come on. It is consistently getting up to 225, and at stop sign to stop sign it reaches 250+ with a red light indicating its hot. I called suzuki and he told me that these bikes run warmer and not to worry, but if it is truly normal than why would a bright light come on encouraging me to shut it down.
So, what is the normal running temp for my GSXr, on freeway, and stop and go...
and what temp is the fan supposed to come on?

I am aware that every bike runs different, and cbr's or yamahas will have different temperatures, but I dont think 250 or more is normal. Is this cause for concern?
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Old 03-25-2007, 05:02 PM   #2
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doesn't sound normal to me. You didn't sell the rc did you? nothing should run hotter than the rc
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Old 03-25-2007, 05:08 PM   #3
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DUDE, 250 is HOT. On a hot day the hottest I have ever seen my bike is 228 in traffic. Granted I have a 600RR, but still, an engine is not made to handle 250. At 235 you are starting to get warm.

Flush your rad. We are not even in summer temps yet.

Last edited by maskale; 03-25-2007 at 06:15 PM.
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Old 03-25-2007, 05:15 PM   #4
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check your fan's fuse
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Old 03-25-2007, 05:16 PM   #5
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Quote:
Originally Posted by maskale
DUDE, 250 is HOT. On a hot day the hottest I have ever seen my bike is 128 in traffic. Granted I have a 600RR, but still, an engine is not made to handle 250. At 235 you are starting to get warm.

Flush your rad. We are not even in summer temps yet.


128???????!
you mean 228?
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Old 03-25-2007, 05:31 PM   #6
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Quote:
Originally Posted by A303
128???????!
you mean 228?

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Old 03-25-2007, 06:15 PM   #7
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duh, yeah, fixed now.
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Old 03-25-2007, 06:30 PM   #8
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Quote:
Originally Posted by witchdoctor575
doesn't sound normal to me. You didn't sell the rc did you? nothing should run hotter than the rc

no I didn't my ex girlfriend put it in the back of her uhaul when she moved back to florida a month ago. It was in her name, my credit was horrible at the time. Where is the fuse box to check it? and how do I go about flushing a radiator on a bike? I have never done my own service. I noticed the resevoir was empty today so I got coolant from the auto store to refill it. Do I need any type of special coolant or will car coolant do the job?
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Old 03-25-2007, 07:30 PM   #9
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check your thermostat as well. I use engine ice for coolant.. some pretty good stuff
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Old 03-25-2007, 07:34 PM   #10
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USE MOTORCYCLE SPECIFIC COOLANT

and as for running temps....your temps are WAY too hot.
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Old 03-25-2007, 08:13 PM   #11
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normal temp is always 170 to 222 max!!!!!! something is wrong with it get it looked @ before you lock it up!!!!
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Old 03-25-2007, 08:38 PM   #12
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Quote:
Originally Posted by GHOSTRIDER
normal temp is always 170 to 222 max!!!!!! something is wrong with it get it looked @ before you lock it up!!!!
I live in Galveston, and have been to WORD CYCLE on 45. I called them about the temperature and they are not very convincing in telling me that it is normal. He sounded like he had no idea what he was talking about. What are my other options as far as places I can go? and they charged me 200+ dollars to change a rim out on a side note.
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Old 03-25-2007, 08:46 PM   #13
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For another 200 I will come pick it up, change your oil and flush your radiator and refill with coolant.


If you res was low you may have been low in the rad also. Crank it up and get it to temp, no more than 220, shut it off and let it cool an hour or two so, see if the level in the res drops. If it does take your fairings off and refill the rad.
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Old 03-25-2007, 09:09 PM   #14
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User is banned

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Old 03-26-2007, 02:53 AM   #15
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Mid 230's are as high as you should ever see...I second checking the fan fuse.
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Old 03-26-2007, 07:18 AM   #16
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i have a small shop over here in laporte off hwy 146 i do lite work on bike's you can bring it over if you want am only about 20 min down the road from you i wont charge you to flush out the radiatior just pay for the engine ice.i can check out the fan and everthing else to for you if your tight on cash. let me know.
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Old 03-26-2007, 07:43 AM   #17
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Hey bro, make sure you check to see if compression is entering the radiator. I just bought&sold an R1 not to long ago that had a blown head gasket. No oil in coolant, or oil in water, yet compression was entering the radiator, and blowing all of the coolant out. However this is a worst case senario. I would recommend not riding it until you get this resolved. The last thing you want is a warped head!!

Good luck.
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Old 03-26-2007, 07:54 AM   #18
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You have a problem if you see 250. Find and fix the problem and then switch to evans coolant.
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Old 03-26-2007, 08:37 AM   #19
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If the resovoir is empty then you are probably low on coolant in the radiator too...would be my guess. Are the fans turning on at all when the temp hits around 220-225? If not, they should be....check the fuse. If the fans are coming on you definately need to check the coolant level.

I'd go for draining, flushing, refilling coolant and while you have things apart couldn't hurt to replace the t-stat and hoses too. I wouldn't trust the hoses after they'd been hot like that several times if it were me........just my $.02
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Old 03-26-2007, 10:46 AM   #20
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Quote:
USE MOTORCYCLE SPECIFIC COOLANT
ummm yeeeeaa its all the same . just dont mix colors. ex (the green reacts funny with the blue shitand messes your bike or car up)
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