Ok well maybe its not so funny really. I noticed the other day the side plastic on my BF750 was a little browned where the exhaust is behind it. Then I noticed the fan seemed to be running an awful lot for not an extremely hot day and being in the rain and wet trails. So I looked at the resivoir and didnt really see anything in there, but it was covered in mud. I got it home and stuck some paper down in it and it came out dry. WOO HOO!!! I pulled the front plastics off and looked in the radiator itself and it was pretty empty. I dont know how long it was like this for and am hoping I didnt do any damage to anything. I got radiator flush and flushed it out with that and then water and filled it back up. I pulled the hot fluid hose off and started it up for a few seconds and it was pumping fluid out so I feel thats good. So I'm looking for opinions. Anyone think I damaged anything or should I be ok? What should I look for? Thanks.

 

You will be fine, It just ran low on coolant. Just keep an eye on it if it gets low again then you got a leak somewhere and that another topic.

 

You may have gotten away with one. Did it ever run bad or feel low on power? You can do a compression check, as low compression would be a leading symptom of trouble.

 

Good to hear. I figured I was fine, but other opinions are always good. I'm going to start carrying a small jug of coolant with me now though and keep a close eye on it. It's running as good as ever, just a little warmer. Thanks guys.

 

You may want a dealer do the leak down test to check for warpage on the head. Also, need to find out why the coolant disappeared and how. If happened once, can happen again.

 

If its low on coolant and you ride where its hot (not sure where you ride) I would switch over to engine ice or a better coolant while its already low. I switched my KFX over to engine ice and it runs way cooler then it ever did before. Just a thought.

 

my 650 is 19 hrs old and leaked out all the coolant ran hot took it to dealer and he says they fixed the leak why is it leaking with 19 hrs ?

 

I just remembered something. When my Vforce was brand new it leaked prestone out the top return hose to the radiator. It leaked out quite a bit too. You may want to check the hose clamp on the return line to the radiator. Just a thought, but an easy fix if thats where your leak is.

 

I completely pulled out the radiator and kind of pressure tested it. I plugged it up, submerged it in water, and put about 4psi in it. No air bubbles came out so that was good. All the clamps are retightened and I havent seen any leaks. I'm going to start carrying antifreeze and just keep a close eye on it. It couldnt have been low too long as it only has 400 miles on it so hopefully I'm safe. Thanks for the info guys.