Disaster has struck our island GTS125!
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Member
GTS 125/250
Joined: 07 Apr 2018
Posts: 16
Location: Grand Cayman
Mon Aug 12, 2019 7:50 am quote
As always I appreciate the feedback.

On the cylinder head, it looks like the thermostat is mounted on the top and starboard side. Below it is a hose that goes back towards the impeller assembly. The nipple that the hose plugs into has completely dissolved from corrosion.

What are my options, keeping in mind I am in Grand Cayman and have to ship parts in the the USA.
Member
GTS 125/250
Joined: 07 Apr 2018
Posts: 16
Location: Grand Cayman
Mon Aug 12, 2019 3:04 pm quote
Here is a picture looking down at the tstat.

thermostat.jpg

Addicted
2006 LX150 (carbed) | 2007 GT200
Joined: 29 Jun 2016
Posts: 678
Location: Toronto
Mon Aug 12, 2019 3:47 pm quote
I am afraid I don't have an answer to your question. But I thought you might like some kind of response (and free bump). I am sure someone who has seen this before will chime in.

When was the coolant last changed?
Enthusiast
2009 S150, 2017 GTS300Super, 2006 GT200
Joined: 18 Oct 2014
Posts: 87
Location: Houston
Mon Aug 12, 2019 3:57 pm quote
Looking at the spray pattern of rust colored fluid that hose or something near to it has failed and is spraying. If it was mine Iíd probably add some water and then run it to try and see where the fluids coming from UNLESS there was some bad sound happening too. I donít know that bike and cannot tell what Iím seeing from the picture but I wouldnít be surprised if it was that hose.
Veni, Vidi, Posti
MP3 500, GTS 250 (both 2008 MY), 2010 Can Am Spyder RT-S, 2012 Honda NC700 DCT
Joined: 02 Mar 2013
Posts: 5279
Location: Madison, Wisconsin
Mon Aug 12, 2019 4:11 pm quote
It could be as simple as the crap factory clamp has failed.
Have you kept up with proper coolant change frequency?
Addicted
2018 LIBERTY 150S
Joined: 26 Jul 2013
Posts: 729
Location: Ohio
Mon Aug 12, 2019 4:44 pm quote
Conchy,


Might help folks stay on track with your issue - if you move the hose away just enough and photo again to show them the dissolved fitment point.

O.S.
Addicted
Yamaha Tricity 155 my 2019 - MV Agusta 125 RS 1956
Joined: 21 Jul 2007
Posts: 927
Location: Latina (Italy)
Mon Aug 12, 2019 8:25 pm quote
I don't understand if the problem is finding the piece or understanding why it has dissolved ... what material is the nipple, plastic or rubber?
Member
GTS 125/250
Joined: 07 Apr 2018
Posts: 16
Location: Grand Cayman
Tue Aug 13, 2019 8:21 am quote
The nipple is steel, and i am trying to find out how to replace it. It is pressed into an aluminum cylinder.

Here are a few more photos. The hose has a smaller tube branched off of it. It looks this hose is possibly a bypass hose for when the thermostat is closed?

WhatsApp Image 2019-08-13 at 11.12.51 AM.jpeg

Member
GTS 125/250
Joined: 07 Apr 2018
Posts: 16
Location: Grand Cayman
Tue Aug 13, 2019 8:22 am quote
Shot is where the nipple was.

WhatsApp Image 2019-08-13 at 11.13.29 AM.jpeg

Member
GTS 125/250
Joined: 07 Apr 2018
Posts: 16
Location: Grand Cayman
Tue Aug 13, 2019 8:22 am quote
Close up of where the nipple was.

WhatsApp Image 2019-08-13 at 11.14.11 AM.jpeg

Addicted
2018 LIBERTY 150S
Joined: 26 Jul 2013
Posts: 729
Location: Ohio
Tue Aug 13, 2019 2:11 pm quote
Good job with the photos....
Yep, just as you described in the OP. A dissolved attachment point.

O.S.
Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: 26 Aug 2007
Posts: 37390
Location: Pleasant Hill, CA
Tue Aug 13, 2019 3:08 pm quote
With all that rust inside - someone used plain water instead of the proper coolant (50:50 ethylene glycol based antifreeze to de-ionised water). Even in the hottest of climates it's essential to have the right stuff inside to prevent corrosion, and to change it out periodically.
Member
GTS 125/250
Joined: 07 Apr 2018
Posts: 16
Location: Grand Cayman
Wed Aug 14, 2019 4:13 am quote
The question is:

Can I remove the remnants and is there a replacement sleeve i can have pressed in?

If not I have to replace the cylinder head, and piston.
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