Quote:
Originally Posted by Akilldema
I guess what happens is the radiator creates a vacuum when it cools back down and pulls the coolant back in. Gonna buy some engine ice tomorrow and get a bigger catch can. I got the redbull one you posted above, but that thing ain't gonna catch much coolant.. had my buddy pic one up on the way over.
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Well the catch can's are so you can run your bike at the track and not spill a single drop. Typical and required for most any track racing. The UFO one goes on the front for the radiator and the Redbull is for any gas/oil drops that could come from the carb. You don't need a big catch for that because that's simply there to see if anythings spewing out of that which could mean a potential motor issue.
Ideally NONE should ever be used in a perfect world so as long as your motor is tip top and you don't let the bike overheat, you'd never need one.