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FZ1 Fazer 2010 overheating

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Andy_Pagin
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PostPosted: 21:04 - 21 May 2023    Post subject: FZ1 Fazer 2010 overheating Reply with quote

I've never had overheating problems before. Bike hasn't been used for about three months. Went out last night for a run, bike behaved completely normally, nice ride no traffic, moving more or less the whole time. Got home, while I was getting the bike down the side ally the temp warning light came on, the gauge flashing 120c.

Tonight I checked the expansion bottle, low but not dry, filled it up, started her up, temperature rose steadily to 100c when both fans came on as expected, temperature continued to rise steadily, very slowly to 120c.

Top and bottom hoses feel hot, top of radiator feels cooler than the bottom.
Oil looks ok, no signs of coolant leakage, bike runs fine.

What should I be checking next?
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A100man
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PostPosted: 21:25 - 21 May 2023    Post subject: Re: FZ1 Fazer 2010 overheating Reply with quote

Andy_Pagin wrote:


What should I be checking next?


The temp gauge?
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Andy_Pagin
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PostPosted: 22:38 - 21 May 2023    Post subject: Reply with quote

Forgot to mention something odd, when I started the bike and let it idle the temperature gauge showed 'Lo', and stayed that way until I revved it after about thirty seconds when it changed to 47c, ie. there was no gradual increase in the reading until I revved it the first time.
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Robby
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PostPosted: 23:11 - 21 May 2023    Post subject: Reply with quote

Assuming the gauge is accurate and the system is full, then it isn't managing to dump heat.

First thing is to externally clean the radiator, check if it's dirty enough to stop airflow getting through or has lots of bent fins.

If the rad looks good, next place I would consider is the water pump, checking for a worn, cracked or sheared impeller blade.
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MCN
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PostPosted: 05:06 - 22 May 2023    Post subject: Reply with quote

Erratic temperature indication could be low coolant. Cold when not coola t on it, then when hot coolant splashed on it shows hot.
Even though the spansion tank look full, doesn't mean the radiator is full.
Open the rad pressure cap and check.
There would also be a puddle of coolant on the floor/path/slabs/monoblock under its parking spot. Where the missing coolant gathers.

For a poached water pump, before you invest in a big bit, check for flow.
There is sometimes a bleeder plug near the top of the water pump/area of pump. Crack the plug open until you see a drip of coolant.
Start the hoowur, and see if the drip becomes a stream or drips faster. That says there is flow. (Pumps only create Flow. Restriction creates pressure. )

Other thing could be a phahed temp sensor.
Some equipment use one sensor for all. Gauge and fan control. Some equipment has two. On for gauge one for fan.

You will loose coolant to replace them either way.

The trick with cooling system troubleshooting, is to try to not have to phaph with draining, filling fecking coolant if not necessary. Cool

If the system need coolant added, squeeze the hoses to help force any trapped air out.
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jeffyjeff
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PostPosted: 09:24 - 22 May 2023    Post subject: Reply with quote

After checking the radiator for obstruction an ensuring proper fan operation and air flow (I've seen fans installed backwards so the cup is not biting air), I would check for causes of insufficient coolant flow. Bad thermostat is probably the most likely culprit, followed by a clogged radiator. Water pump impellers can erode due to cavitation, but other causes are more likely.

Fan operation at idle should pull down your coolant temperature within a minute or so, temperature still climbing after fans turn on suggest the engine will overheat severely when underway. As stated above, make sure cooling system is filled to capacity.
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xX-Alex-Xx
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PostPosted: 00:06 - 23 May 2023    Post subject: Reply with quote

Check the easy stuff first. Coolant full, replace radiator cap as it’s cheap, then look at the thermostat.
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jaffa90
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PostPosted: 01:27 - 23 May 2023    Post subject: Reply with quote

xX-Alex-Xx wrote:
Check the easy stuff first. Coolant full, replace radiator cap as it’s cheap, then look at the thermostat.

This with expansion tank half full.
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stinkwheel
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PostPosted: 07:43 - 23 May 2023    Post subject: Reply with quote

Filling the expansion tank doesn't fill the radiator. Filling the radiator fills the radiator.
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MCN
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PostPosted: 10:01 - 23 May 2023    Post subject: Reply with quote

My spelbot on my phone makes me look like an idiot.

I type it, I see wot I typed. I submit.
What is submitted gets changed between send and read.

It's Driving Me Nuts.
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Andy_Pagin
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PostPosted: 20:37 - 28 May 2023    Post subject: Reply with quote

MCN wrote:
My spelbot on my phone makes me look like an idiot.

I type it, I see wot I typed. I submit.
What is submitted gets changed between send and read.

It's Driving Me Nuts.

I assumed you'd been on the falling down water Laughing
Thanks for the advice though.
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They're coming to take me away, ho-ho, hee-hee, ha-haaa, hey-hey,
the men in white coats are coming to take me away.
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WD Forte
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PostPosted: 00:12 - 29 May 2023    Post subject: Reply with quote

My guess is stuck thermostat or bad pump
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Andy_Pagin
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PostPosted: 17:46 - 02 Jun 2023    Post subject: Sorted! Reply with quote

Well I fixed it, the worst kind of fix, where you don't actually find out what the problem was.

First I garden-hosed the outside of the rad, can't say much muck came out and the water gushed through fairly well.

Next checked the water level at the rad cap. It wasn't brim full, so I added some coolant, about 60ml. Cap looked in good order, no signs of coolant having blasted out.

Started her up, nice steady increase in temperature at the gauge. Took noticeably longer to reach 100c. Fans kicked in, went up to 102c then drifted slowly down to 94c. Cycle then repeated ...

So now I'm going to have to watch the bloody temperature gauge like a hawk on every ride. Rolling Eyes
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They're coming to take me away, ho-ho, hee-hee, ha-haaa, hey-hey,
the men in white coats are coming to take me away.
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dave001 This post is not being displayed because the poster is banned. Unhide this post / all posts.

Nobby the Bastard
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PostPosted: 20:38 - 02 Jun 2023    Post subject: Reply with quote

dave001 wrote:
MCN wrote:
My spelbot on my phone makes me look like an idiot.

I type it, I see wot I typed. I submit.
What is submitted gets changed between send and read.

It's Driving Me Nuts.


shall we start insulting you now then over it ?
Mr. Green Mr. Green Mr. Green


Walloper doesn't act like a complete cunt all the time.
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Nobby the Bastard
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PostPosted: 22:01 - 02 Jun 2023    Post subject: Reply with quote

I never said I wasn't a complete cunt.
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Nobby the Bastard
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PostPosted: 22:17 - 02 Jun 2023    Post subject: Reply with quote

dave001 wrote:
Nobby the Bastard wrote:
I never said I wasn't a complete cunt.


your not useful enough to be a cunt Wink


I should really thank you for confirming that I'm not a cunt.
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Ste
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PostPosted: 22:27 - 02 Jun 2023    Post subject: Reply with quote

dave001 wrote:
shall we start insulting you now then over it ?
Mr. Green Mr. Green Mr. Green

No because that would take attention away from you and nobby who are getting on really well right now.

Wub
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