When are you experiencing the overheating? Are your fans operating? Rad fans are easily hung up or damaged.


FYI The 14b does run pretty hot.

 

Fans cut on and run fine. I can ride all day with no problem but if I hit it hard the highway then say I get off the highway and come to a red light then my temp starts rising and if I don't move it will get to 140 them I turn off the bike so I don't mess it up.

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What temps are you seeing?

 

If I sit to long once she starts getting hot I get 240.

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From what you've said I'd say it's not the bike's fault entirely, you can't wring its neck and then immediately slow way down or stop and expect it not to overheat. Going slow doesn't help a modern, very high strung sportbike to cool down, turning it off isn't a great idea either since the heat will build up inside the "core" of the engine without the means to disperse it. My 09 liked a nice mile or so run at low RPM at highway speeds in order to cool down after a hard run. These bikes have become more and more high performance at a cost, although I will say the 14B ran hotter than anything I've ever had and I have had it a 240+ a few times when I was stuck in traffic during the summer or what not.

 

Has the ECU been flashed? Then you can get the fan to switch on at a lower temp.

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Ecu is flashed and fan comes on at 205.

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All the above for sure. Also, you say it's flashed. Was it done by a reputable place? Do you know what AFR's its tuned too and did they modify the ignition map too? These things can also have an impact on running temps. Something to consider.

 

I can't blame the flash because it started before I got the flash done. The flash was done by SBU.

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IMO your descriptions of bike operation and riding environment and owning a 2012 myself the temperatures you are seeing sound normal.

My bike is flashed as well and I have seen my temps get 220-230 before and I live in Buffalo, NY and the temperature was not above 90 degrees. This was also the same timing as you stated after high spirited driving and then getting stuff in traffic or getting off the highway and having to drive through a 30mph town or village with frequent stop signs/lights. I use Yamaha coolant and not distilled water with an additive (I store it in my garage in the winter and it gets quite cold here ha ha).

 

Water is a better coolant than Engine Ice, so it could be worth trying with a decent corrosion inhibitor. The downside is that the boiling point is lower, so you would not want the temperature to get to 240.



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Do a leak down test on your radiator cap. Or just buy a new one. Cap rubber seal goes bad (erosion) after a few years. I've seen this happen in the shop. I'm working as a Service Advisor for a Yamaha, Suzuki, Kawasaki, Honda, Sea-Doo dealership.

 

I have a new 1 bar radiator cap and a new graves 2 bar radiator cap on it now.

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Are you running race gas? or Av Gas?

 

Just pump gas.

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Whens the last time you changed your oil, if its milky, it could mean you warped the head or blew the head gasket it would be overheating really easily but also it would run like dog s***.

 

It's been changed multiple times the is no coolant in the oil. No milky oil at all.


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How old is the bike? Its gotta be something electronic, or there is a coolant channel clogged up somewhere.

 

09 and if there is a blocked channel how to clear it. It has been properly flushed multiple times.


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Having the same issue here, did you fix the problem?

 

If you ride it hard (high in the tach) and then sit in traffic, it will get hot.