08 overheating please help - 600RR.net
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post #1 of 14 (permalink) Old 04-06-2014, 02:33 PM Thread Starter
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08 overheating please help

I incurred some overheating problems about a week and a half ago the bikes temp would climb to over 230 degrees even when I was riding high speed on a cool day. So I immediately stopped riding and called a friend and trailered the bike home. I figured the thermostat wasn't opening so I replaced it yesterday with new o ring and flushed and burped the cooling system and it is still doing the same thing. Anyone have any idea what else it could be. Water pump maybe. I also noticed the fan wasn't turning on bit that still wouldn't cause the bike to rise to those temps. Any help or input would be appreciated thank you.
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post #2 of 14 (permalink) Old 04-06-2014, 02:56 PM
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how quickly does this happen? could be you have a failed pressure cap on the radiator. water pump broken.


the fan should come on at 220 F.
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post #3 of 14 (permalink) Old 04-06-2014, 03:02 PM Thread Starter
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This happens from a dead cold start to 230+ within 5 or less minutes. I notice a little hissing coming from the cap. But I'm thinking it might be the water pump since it happens so fast.
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post #4 of 14 (permalink) Old 04-06-2014, 03:07 PM
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there should be no hissing from the cap at all. if it is hissing it is leaking and not pressurising the system.

it is cheaper and easier to replace the cap first before you try the pump.

is the bottle filled to the correct level? when the motor gets that hot there should be coolant flowing back to the bottle. you could have a leak on the bottle or pipework, which means that when the bike cools down air is pulled into the radiator.

water pump failure is rare and I would check everything else before that.
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post #5 of 14 (permalink) Old 04-06-2014, 03:12 PM Thread Starter
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Ok I will do that. But you think a radiator cap will cause the bike to overheat that fast? And yeah the bottle is filled to the correct level.
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post #6 of 14 (permalink) Old 04-06-2014, 05:12 PM
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if it's hissing it's likely to be faulty, so replace it.

other than that you've got no or limited circulation - blocked rad, air lock or pump.
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post #7 of 14 (permalink) Old 04-07-2014, 09:57 AM Thread Starter
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Does anybody know where the fuse or relay for the fan is?
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post #8 of 14 (permalink) Old 04-07-2014, 06:19 PM
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I would expect the fuse to be in the main fusebox. 20A on my bike, inside the front cowling. Fuse location is detailed in the owners handbook.
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post #9 of 14 (permalink) Old 04-07-2014, 07:31 PM
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that seems to be heating up very fast.. also weird that your fans are not turning on. I have had this happen to me on a car and i had an air bubble and a bad temp sensor and fan switch.
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post #10 of 14 (permalink) Old 04-11-2014, 02:57 PM Thread Starter
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Need code error 35 decoded

So I still haven't found the solution for the over heating issue it's not the water pump or the radiator cap. But I'm getting 3 short blinks and 5 fast blinks now from the f1 light. I checked the thread where it has the numbers decoded but there is no 35 anybody know what this could be.
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post #11 of 14 (permalink) Old 04-11-2014, 04:10 PM
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that's an FI light.............. EGCV error. nothing to do with overheating.

is the fan running yet? is the temperature genuine or do you have a faulty sensor?
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post #12 of 14 (permalink) Old 04-11-2014, 04:19 PM Thread Starter
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Yes the fan is running now. I'm not sure if I have a faulty sensor. Any way I can check? Also I could smell coolant by where the radiator cap is bit I'm not sure if I'm just smelling burning coolant that overflowed when I flushed the system.
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post #13 of 14 (permalink) Old 04-11-2014, 04:21 PM
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there's probably a procedure in the service manual for checking the sensor.
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post #14 of 14 (permalink) Old 04-11-2014, 04:32 PM Thread Starter
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I don't have a services manual if somebody has a way to perform such procedure and wants to share it would be much appreciated
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