f650gs twin leak

[lukethedrifter]

Hi all, riding my bike today and noticed when I pulled over that there was steam/smoke coming from around the fairing where you put your key. Had a nosey around to try and find the problem, and just under the fairing to the right of the key area I noticed that fluid of some sort was squirting out of what looks like a little bottle ? It has a top on ( not unlike a milk bottle top) and seemed to have a hole right in the middle ? anyone have any idea what it is ?
I kept an eye on the temp guage which seems to remain the same i.e half way.
Thanks for any advice.

 

[PankGS]

When did you last top up coolant my wife's bike has done this unless level kept between lower and upper level .

 

[lukethedrifter]

Cheers for that, will need to find out where to check for it. Time to read the manual I think

 

[lukethedrifter]

Sorry to be be a pain in the arse about this, but I can't figure out if this is normal. I'm not mechanically minded but can usually work out and fix problems myself.
Obviously the reservoir is some kind of expansion tank/overflow thing. I've checked the coolant levels and it all seems normal. I just don't understand why it has a hole in the top. Every time I am stuck in traffic for any length of time it starts squirting out like a water pistol as if it's overheating. But the temperature gauge stays normal. Next day I will check fluid levels and they don't seem to be low ?
The fluid squirts all over the pipes and I'm sat there in traffic with smoke/steam coming from the bike............doesn't look good.
Is this a common problem ? or could I possibly have an air lock in the system ?
Normal riding doesn't seem to be a problem, it's only when stuck idling in traffic for long periods.
Help

 

[Q plate]

Hi is your fan motor kicking in at any stage? Leave it running on the main stand for a few minutes and you should have the fan start. With my bike for example the temp gauge sits at about half way during normal operation. If I leave it running stationary and it creeps up from memory just a couple of segments on the gauge the fan comes until the temp drops again.

 

[lukethedrifter]

Hi is your fan motor kicking in at any stage? Leave it running on the main stand for a few minutes and you should have the fan start. With my bike for example the temp gauge sits at about half way during normal operation. If I leave it running stationary and it creeps up from memory just a couple of segments on the gauge the fan comes until the temp drops again.

My fan does kick in, and as I say the temp seems normal. It's just that annoying coolant/fluid squirting all over the place.

 

[Q plate]

Try a new cap? Cheapest/easiest option

 

[lukethedrifter]

Try a new cap? Cheapest/easiest option

Great idea thanks