Its normal for the motor to get to just a bit over boiling (mine will get up to 225 deg F) before the fans come on.
Its also normal for some coolant to be pushed out of the rad and into the overflow bottle as the fluid heats up and expands. The level in the overflow bottle should be near the low line when cold and near the full line when hot.
If you have coolant comming out and the overflow isn't totally full you might check that the lines going to the overflow are not reversed. If the rad is boiling over and totally filling the overflow bottle then ya got issues
ok i just checked me overflow bottle at lunchbreak (stone cold engine)
i think shes sweet i must of over filled the overflow because the water is up to the hot line on the overflow when its cold:banghead
If the overflow bottle was too full, then yes, it would be the cause when the radiator expelled some coolant. (It sucks it back in from the overflow as the engine cools too).
Wouldn't hurt to drain and flush the cooling system then fill it with good coolant with the correct ratio of water. It's supposed to be done regulary, but often it isn't. (I used to do mine every season.) That way it's not going to boil as easily and you'll be able to run it to 120C before you have to start worrying about it.
I hope it's not a head gasket. A blown one can pressurise the cooling system and cause it to blow off. With the radiator cap off, run the engine and look for bubbles.
A forum community dedicated to Suzuki TL sport bike owners and enthusiasts. Come join the discussion about performance, modifications, classifieds, racing, troubleshooting, maintenance, and more! Open to TL1000R (TLR), TL1000S (TLS), SV650, SV1000, and all other TL models!