Date: 08-11-25  Time: 06:51 am
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Author Topic: Coolant leak from the thermostat  (Read 1580 times)

mars696

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Coolant leak from the thermostat
« on: 13 July 2013, 02:55:34 pm »
I found that i have coolant leaking from the thermostat.
Coolant leaking exactly from the under bolt that hold the the thermostat housing.
So anyone had the same problem?
My mind goes to the o-ring between those parts...but where i can find one....
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darrsi

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Re: Coolant leak from the thermostat
« Reply #1 on: 13 July 2013, 03:17:22 pm »
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mars696

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Re: Coolant leak from the thermostat
« Reply #2 on: 13 July 2013, 03:34:06 pm »
Excellent!
Thank you once again Darrsi!!!
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Dead Eye

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Re: Coolant leak from the thermostat
« Reply #3 on: 14 July 2013, 08:36:18 am »
I think I ended up just replacing the entire thermostat when mine was leaking. Got a second hand one from fleaBay for about £6
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Pandy

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Re: Coolant leak from the thermostat
« Reply #4 on: 17 April 2017, 11:16:00 am »
Does anyone knows what's the diameter of the housing o-ring between the 2 parts of the thermostat on a 99 FZS600?
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Jules-C

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Re: Coolant leak from the thermostat
« Reply #5 on: 18 April 2017, 08:02:05 am »
Don't think I made a note of the size when I replaced mine but part number 93210-49046-00 and cost under £5 from yamaha dealer.


If you don't want to go to Yamaha dealer or it's on back order you can split the thermostat housing to check the size with bike on sidestand and only lose a cup full of coolant
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mtread

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Re: Coolant leak from the thermostat
« Reply #6 on: 18 April 2017, 12:54:47 pm »
Thermostat £67.61  :eek


24ct gold?
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