Boiling over... what?

[jeckyll]

I checked and you were right about the radiator cap being shared across the Yamaha product line. All the way from 250s up.

That's useful information to filr away for later

 

[Cycledude]

Checked the radiator, full to the brim. Put about 300ml of distilled water in the coolant tank. Let's see how we go today... Change fluid tomorrow.

Since you have been adding just water not antifreeze I suppose there is a possibility that the water in the bottle could actually get hot enough to boil.
When you buy antifreeze I highly recommend buying the premixed stuff, it costs very little extra and it eliminates any chance of an improper mix.

 

[Kyle_E]

Since you have been adding just water not antifreeze I suppose there is a possibility that the water in the bottle could actually get hot enough to boil.
When you buy antifreeze I highly recommend buying the premixed stuff, it costs very little extra and it eliminates any chance of an improper mix.

Few months ago when I went to do the flush on my Versys, parts store didn't even carry the mix it yourself variety anymore. I'm sure it is still sold, but think that is going the way of buggy whips.

 

[dcstrom]

Looking for coolant today in Bulgaria, not straightforward as most of the text on the bottles are in Bulgarian or Russian. Most bottles were concentrates, and then the places selling it didn't have the necessary distilled water to mix with it. I did find some pre-mixed but couldn't determine if it was silicate free... Will be in Bucharest tomorrow, will look for a Yamaha dealer and try to get some from there, that should be the safest bet!

 

[Jlq1969]

Looking for coolant today in Bulgaria, not straightforward as most of the text on the bottles are in Bulgarian or Russian. Most bottles were concentrates, and then the places selling it didn't have the necessary distilled water to mix with it. I did find some pre-mixed but couldn't determine if it was silicate free... Will be in Bucharest tomorrow, will look for a Yamaha dealer and try to get some from there, that should be the safest bet!

Get one of a recognized brand, mix it in the proportion you need according to your temperatures below zero. But make sure that the one you buy is "ORGANIC", it is much superior to the inorganic ones, and they have a longer useful life

 

[Curt]

Last time this happened to me it was my Honda CB900F boiling over regularly. Radiator caps are fairly standard, and I easily found a replacement at the local auto parts store. I checked the pressure rating printed on the cap (1.1 bar) and got one with the same rating.

 

[dcstrom]

Last time this happened to me it was my Honda CB900F boiling over regularly. Radiator caps are fairly standard, and I easily found a replacement at the local auto parts store. I checked the pressure rghating printed on the cap (1.1 bar) and got one with the same rating.

Hmm 2 auto shops in Bucharest, no luck. Yamaha dealer says 2 weeks to get the part. Scouting for other options grrr

 

[Squibb]

These guys at Tonny run a rad repair shop in Bucharesti & appear to handle all types of bike too ...............
http://www.radiatoare-auto.ro/index.php?option=com_content&task=view&id=17&Itemid=41

Perhaps they can pressure test your system & test/supply a new rad cap as necessary.

 

[dcstrom]

I found a workshop that had a Hayabusa radiator cap that fits. An afternoon riding around in Bucharest traffic, and the radiator didn't boil again... so it's looking like the "new" cap fixed it. Only problem is, I had to pay the new price for a cap from a 2007 Hayabusa, since the guy will have to order one to replace the one I took. About $40. Since this cap is quite old it probably makes sense for me to get a brand new one when I can, which means another $40 or so. ($28 for a genuine Yamaha part in the US but won't find at that price here).

Never mind, hopefully problem solved for now - the Transfaragassen awaits!

 

[Checkswrecks]

Dude - With your cash burn you can afford the $40.