really likes Carpe
Posted 28 December 2017 - 11:31 pm
hi mk2 850 was running rough after washing it.
Thought it might clear took leads off to check and saw coolant in the recess
where the metal coolant pipe goes into the head.
Is this a common fault??
looks like it has been off before - I will get it hot and hopefully it is just a pipe leak
Carpe Citizen
Posted 29 December 2017 - 08:07 am
A common leak happens at the thermostat housing, above the rocker cover. The O-ring degrades and fails to seat properly when it's old.
900 with better bits. Owes me nothing, Makes me smile
really likes Carpe
Posted 29 December 2017 - 11:45 am
Could not find a leak last night.
I have dried the pipework engine running now so will see where its leaking.
The allen key bolt has rounded a bit PR must have tried to remove it - it is a pain to get to
Monkey Boys Monkey
Posted 29 December 2017 - 12:01 pm
The thermostat housing leak will prolly only show when the engine is up to temp and the radiator is full.
Mk2a 2000 in Silver. Top end Refurb @ 41100 miles, Scottoiler, Renthal Road High Bars, Up & Back Bar Risers, Bellypan, DL650 Handguards, Capt. Picard Bar Ends, House of Henty SS Wheel spacers, New Seat Cover Fitted. 58 MPG !! Now owned by chrisbee ! Studley's mk2a Bloggerydoodaah ! Photos of my first MK1 Photos of my MK2a TPLQHCSRSFC No. 1 Fan
really likes Carpe
Posted 29 December 2017 - 12:21 pm
Left the engine running fan came on twice but no leak.
Will put it back together and see how it goes.
I was out over Christmas and it was outside in the cold ice etc so I think it had a mardy.
Monkey Boys Monkey
Posted 29 December 2017 - 09:06 pm
Might be worth checking the coolant level in the radiator.
Mk2a 2000 in Silver. Top end Refurb @ 41100 miles, Scottoiler, Renthal Road High Bars, Up & Back Bar Risers, Bellypan, DL650 Handguards, Capt. Picard Bar Ends, House of Henty SS Wheel spacers, New Seat Cover Fitted. 58 MPG !! Now owned by chrisbee ! Studley's mk2a Bloggerydoodaah ! Photos of my first MK1 Photos of my MK2a TPLQHCSRSFC No. 1 Fan
Sir Cumference
Posted 30 December 2017 - 10:29 am
Might be worth checking the coolant level in the radiator.
When it is cold........... 
Single-handedly reviving the Wave.
2008 reg. Black TDM 900 ABS
really likes Carpe
Posted 02 January 2018 - 09:24 am
Right bike does not have a leak.
The problem was an accumulation of dirt/grit etc around the coolant pipe on the head.
This formed a sort of soft dam and after washing and with being out in the rain for a few days there was a
collection of oily water.
So when I got home and put the bike on the side stand it poured over the head.
This I suspect is why the bike misfires after rain or a wash, the soft dam held back the water but allowed some
to seep through to the spark plugs. a bit of water would come out the drain holes but a continual amount could
cause problems.
Monkey Boy
Posted 02 January 2018 - 09:43 am
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