Hello everyone. I just recently purchased the '86 750 pictured below. At the time of purchase, the engine was running fine. Now it's overheating. It's pretty gradual...after about 20 minutes of riding it starts to boil over.
I took it to a local Kawasaki dealer, they said there were some leaks and the cap needed to be replaced. They fixed that and flushed the system and gave it back to me saying it was okay. I made it a few miles away and it started boiling over again. I barely made it back to the shop.
They took their sweet time with it and called me back saying the only thing they could think it is is a blown head gasket or warped head.
I didn't want to pay their enormous price tag for that job so I'm slowly working on tearing the engine out right now.
I'm a bit concerned that it may not even be the head/head gasket as there hasn't been any smoke at all from the exhaust. The oil did have a strange color to it when I drained it though.
I don't believe it's the radiator or pump as fluid is definitely moving through the system. I pulled the thermostat housing to replace the thermostat only to find that the housing was empty.
Just wanted to introduce myself and get everyone's opinions on the matter while I'm waiting for my parts to arrive.