over-heating my 86-87 rm80 - Dirt Bike Forums at Dirt Rider Magazine

over-heating my 86-87 rm80

  
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over-heating my 86-87 rm80

 
mrk02civic mrk02civic
New User | Posts: 2 | Joined: 11/09
Posted: 11/04/09
06:52 AM

just recently got this rm80 and there was water in the cylinder, so i replaced the head gasket and fixed that problem right away. Now i have another problem, it seems to be building up to much pressure in the system and fluids are now blowing right back out the over-flow on top of the radiator, anyone have an idea what could be causing that? The water pump seems to be working, maybe it's just not working enough?
Well it's not really overheating until after the bike warms up and loses all the fluid, it starts to spit all fluid out right away after start up. Any ideas will help.  

 
RidinRM RidinRM
User | Posts: 212 | Joined: 01/09
Posted: 11/04/09
12:58 PM

that sounds weird man. I wish i could help! im sure someone on here can help you! And mrk02 welcome to the boards!  
Adam
2002 XR 100R
2003 RM 100

 
mrk02civic mrk02civic
New User | Posts: 2 | Joined: 11/09
Posted: 11/04/09
01:31 PM

thanks for the welcome and i am really narrowing it down to be a radiator problem, my buddy noticed that the bottom of the radiator is bent or dented in a little bit, and i already knew that there were a few fines messed up. Maybe the radiator is restricted just enough to build up that back pressure in the radiator  

 

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