CBR650F Leak on cbr650f - Might be coolant

[FJ]

Hi, I recently bought a 2015 CBR650F, and after 2 hours of riding, I noticed these stains under the bike. Is it normal? I just got into riding, and it’s kind of making me nervous. Does anyone have an idea what the problem might be?

 

[papajim93]

First you have to find out what the fluid really is. Then find out where it is coming from.

 

[Brammers]

As above. It's the right colour to be coolant, it's definitely not fuel similar colour to petrol.

It could be many things on a 2015...leaking heat exhanbger, some damage to the radiator, a split or cracked hose or loose clamp.

It could be as simple as the coolant overflow pipe is not poking through the fairing (by the side stand) and is running / pooling inside the fairing.

Get in there with a torch/flashlight and see where it's coming from. Take a picture if you can.

It will be easier if the side fairings came off. You could then watch with the engine running for fluid escaping.

J

 

[FJ]

Thanks for the replies! The bike is now at the dealer again tho.. will update this thread whenever more info is available

 

[FJ]

It was nothing more than a leaky O ring

 

[Brammers]

Which o-ring... I'm interested to know!

J

 

[FJ]

Which o-ring... I'm interested to know!

J

I only have an unsatisfactory answer because I genuinely don’t know. I just had whatever O ring was faulty fixed, and I was so excited to get back out riding that I didn’t ask the mechanic any questions.