More than half on a 73* day and the bike moving and not stuck at a stop light means something isn't cooling as it should. I could see if it was 90*, but when it's below 80 my bike seldom even gets to half unless I'm sitting at lights and not moving.

 

I've notice that everyone thinks that the problem is in the fuel mixture. Have you looked at the thermostat? My F3 was doing similar stuff, getting almost on H when riding in 70 to 80 degree weather. Long story short, it was my thermostat. It wasn't opening up. I took it out and put it into a boiling pot of water and it wouldn't open up. Due to it failing to open up, it doesn't allow enough coolant to flow through the cooling system.

 

Would a broken thermostat cause the bike to really overheat or just give false readings? Because when I sit in traffic the temp starts going up kinda fast and it starts bogging down till it gets too hot and dies.

 

It would cause the bike to actually overheat because there isn't enough coolant being circulated. Usually the thermostat gets stuck in a closed position and restricts too much of the coolant.

 

Awsome. Its been bugging me not knowing whats going on. I've been trying to go out as little as possible. Guess I get to test out my BRAND new stands and socket set. w00t.

 

The honda vfr's are known to have bad t-stats. Even brand new oem ones will not work sometimes. I'm pretty sure my bike is running normal, but I need to burp it and check the t-stat for ****s and giggles.


A good thing to do is get a electronic therm reader and put it at different parts of the radiator and different parts of the motor. This can tell you where they might be air.

http://www.webbikeworld.com/r2/digit...hermometer.htm

 

I doubt theirs air since I redid my coolent and my overflow is till toped off.

 

20 minutes of idling? There's your problem... they all get hot sitting still - they need air moving over the radiator to cool off.

 

Mine starts overheating after about 2 minutes sitting at a light. Hell maby less than that.

 

You'd be suprised. Just cause its full doesnt mean air isnt in there.