[md8181]

Ok so I found a motor with only 450 miles on it, after mine blew up. I got it in and everything was good.
I had to drain and remove the radiator when I did the swap, so of course had to refill once everything was done.
Well it started up and was running fine in the garage, but I noticed that the temp was climbing pretty fast.
It got to around 215 and the fan came on and next thing I know it's at 252, and the numbers 252 are blinking. I figured that wasnt good so I shut her down.

This happened twice.
I came on here and red about burping the air from the top screw of the water pump, so tried that, but it's still getting hot.
Is there more air bubbles or what??

Does anyone have anything that will help me. Or know something I don't.
Or is this normal if you let a bike idle for 8 minutes or so...

Thanks

 

[RicanHavoc]

not sure if this helps but, my fan kicks on at around 220-225 and then stays on for a while.... usually by then im moving again and the temp drops.... while the fan is on it usually will stay withing that range tho'

 

[Mister Tee]

Double check the routing of all of your coolant hoses, and the operation of your thermostat, as well as making sure your fan is coming on at 220. If those are all good, then you may still have air in the cooling system locking it up.

 

[ClevelandWheeler]

Double check the routing of all of your coolant hoses, and the operation of your thermostat, as well as making sure your fan is coming on at 220. If those are all good, then you may still have air in the cooling system locking it up.

+1 had the same problem with my mustang that is what was wrong with it. my fan come on at 220 and almost instantly goes to 217 after it comes on.

 

[RiSensei]

Check tubes, make sure they are routed correctly and not bent.
Thermostat is stuck closed, improperly installed. Some can be put in upside down! It heats up and "closes" the system.
Air in the system, bleed it.
Debris in the cooling system, could something have gotten into the motor while it was out of the bike?
Water pump not working.

 

[RockGSXR01]

It could be running really really lean. check ure maps if you have a power commander.

 

[md8181]

Ok I checked for bent hoses and there were none that I could see.

I left the cap off and when starts warming up it spits all the fluid out. So I put the cap on.

Now it gets up to 220, the fan comes on and it drops to 210 thats when the fan shuts off, it might drop down a degree or two and then it climbs back up to 220. Then comes the fan again.
So it's fluctuating between 210 and 220 with the help of the fan.
Is this normal??????????????????????
It's not hot here, its around 60.

 

[Mister Tee]

Ok I checked for bent hoses and there were none that I could see.

I left the cap off and when starts warming up it spits all the fluid out. So I put the cap on.

Now it gets up to 220, the fan comes on and it drops to 210 thats when the fan shuts off, it might drop down a degree or two and then it climbs back up to 220. Then comes the fan again.
So it's fluctuating between 210 and 220 with the help of the fan.
Is this normal??????????????????????
It's not hot here, its around 60.

If you're idling or sitting at a stop, yes. If you're riding around, that is a little odd.

 

[ClevelandWheeler]

its a good sign that it drops but it shouldn't run at 220 mine runs around 160-180 on the road and 220ish at lights and stop and go traffic

 

[italianmike]

I'm sure he has to be talking about it sitting and not riding it cause that is exactly what it is supposed to fluctuate at if not moving. But in the case that he is speaking on this as if it were in motion doing this then yeah that is deffinately way off.

 

[md8181]

yes this is just sitting in the garage. I haven't taken it out yet. It's been raining for the last 3 days.
Ok cool so going between 210 and 220 at a stand still is perfectly normal. Good
Thanks for all the help!!