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Sherco 250 Coolant Overflow


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#1 dom1f

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Posted 30 June 2012 - 10:48 PM

Just bought a 2002 Sherco 250, never owned a trials bike before so no level of knowledge to start from.

Basically I took it our for my first ride today and after a while the radiator overflow started leaking coolant which stopped when it cooled down then came back much worse when I started riding again.

The vendor says the coolant was changed when he serviced the bike before selling it and they all do that and it is nothing to worry about whilst I am now worried about head gaskets or possibly even a cracked head presurising the cooling system.

I am supposed to be riding my first ever trial on Thursday so can anyone confirm if this is normal? Or should I drain and flush the cooling system then refill it so I know it is not overfilled and check the water pump impeller and the thermostat.

Thanks


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#2 ham2

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Posted 01 July 2012 - 12:06 AM

Do not 'brim' the coolant up to the spout,the radiator needs an expansion gap at the top of the matrix.
The coolant should fill the rad up to and level with the top of the fins in the matrix... and no more (you will need a torch) .If it is overfilled then it should find it's own level by expelling the extra once it heats up.
I'm a bit concerned about your post when you say that it was much worse after expelling and cooling?
For the last time...it's not 'SUPPOSED' to have a seat.
There are two types of men in this world:-
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2) Those that want to be.

#3 copemech

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Posted 01 July 2012 - 03:47 AM

Yea, she will spit when topped off, likely normal.
Ride it Like it was one of your old Girlfriends, If you still remember how!

#4 dom1f

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Posted 01 July 2012 - 09:32 AM

Thanks guys.

The first time we noticed it was only a few drips hitting the exhaust and steaming off, I stopped the bike immediately to check it but couldn't see where it was coming from so put it down to a bit of splash from a puddle or something.

Second time it was coming out in proper big drips so I stopped it and found the overflow hose when I started the bike and let it run for a while it started dripping from the hose again.

I will check the level in the radiator, hopefully it has just been a bit overfilled and will find its own level.

#5 houseape1000

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Posted 01 July 2012 - 04:03 PM

check the vent/valve in the rad cap as they can stick open.
What is that private Pyle ? Sir, a jelly doughnut, sir!

What is your major malfunction, numbnuts?

#6 dom1f

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Posted 01 July 2012 - 05:40 PM

Will do.

Competitive debut is now on hold anyway due to other factors.

#7 splatshop

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Posted 06 July 2012 - 12:48 PM

Does your fan come on?

#8 ham2

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Posted 06 July 2012 - 04:07 PM

Does your fan come on?


Err.. x2

I missed out the obvious.
For the last time...it's not 'SUPPOSED' to have a seat.
There are two types of men in this world:-
1) Those who are Geordies and..
2) Those that want to be.

#9 dom1f

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Posted 06 July 2012 - 11:48 PM

Yes the fan comes on.

Been a bit delayed getting the tools out, my missus went into hospital on Sunday and gave birth to our daughter on Wednesday morning.

Will update on the bike once I get the chance to look at it again.

#10 houseape1000

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Posted 07 July 2012 - 04:11 PM

congratulations :thumbup:
Honestly...do women have no consideration ?
What is that private Pyle ? Sir, a jelly doughnut, sir!

What is your major malfunction, numbnuts?


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#11 houseape1000

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Posted 07 July 2012 - 04:12 PM

Only just noticed.....she went in on Sunday and gave birth on Wednesday, jeez !!!
What is that private Pyle ? Sir, a jelly doughnut, sir!

What is your major malfunction, numbnuts?

#12 dom1f

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Posted 07 July 2012 - 10:49 PM

Should explain she has a history of pre-term labour so went in with some concerns on Sunday, only really starting labouring on Tuesday early morning.

Baby arrived at 26 weeks 3 days and 1lb 6ozs in weight so she will be in the NICU for a bit but she is doing well for her size so far.

#13 copemech

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Posted 08 July 2012 - 03:34 AM

Should explain she has a history of pre-term labour so went in with some concerns on Sunday, only really starting labouring on Tuesday early morning.

Baby arrived at 26 weeks 3 days and 1lb 6ozs in weight so she will be in the NICU for a bit but she is doing well for her size so far.


Best to you all!
Ride it Like it was one of your old Girlfriends, If you still remember how!

#14 ham2

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Posted 08 July 2012 - 10:41 PM

Congratulations,and best wishes :)
For the last time...it's not 'SUPPOSED' to have a seat.
There are two types of men in this world:-
1) Those who are Geordies and..
2) Those that want to be.




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