The expansion tank was filled above the high level mark. I started to reduce the level the liquid in looks like this:






The liquid isn't oil, doesn't smell like coolant but has a viscous texture.

Any idea's?

Have you checked your oil level?

That doesn't look normal to me. Looks like a cooling fluid/olie/flues mixture. Maybe a little leak in the head gasket ??

That's what I thought Dutch

If it was oil wouldn't it just emulsify with the coolant?


I forgot to mention.......the bike is new with 500 miles on the clock!

It certainly looks like oil. The only two places oil and coolant could realistically get mixed up are at the head gasket and at the water pump.

What's the oil level like? Has it gone down by the same amount as the coolant has gone up? What does the oil colour/texture look like?

Is there anything leaking out of the drain hole on the underside of the water pump housing - either oil, water or both?

However...

So I'd take it straight back to the dealer and let them work it out!

__________________

Perhaps someone has put some radweld or similar in the expansion tank in an attempt to fix the weep from the radiator.

Whatever, take it back and insist on an xt660 as a service bike while they replace the rad under warranty and flush and replace the coolant. While you have the service bike try and do thousands of miles on it.

Good luck with this. It's a right ball ache when a new bike goes wrong and you are dealing with a bull****ting dealer.


Sent from my iPhone with a smile

Well, finally after 3 weeks of telling me that it's normal and keep on riding the bike, the dealer has finally responded telling me that they want to collect the bike by van. So reading between the lines I'm guessing the message from them is that the bike shouldn't be ridden.
Out of the country at the moment so an update in 2 weeks.

Which dealer is it going to? Bill Smiths?

Wigan Yamaha