Bought this quad used and it runs great. Starts easy, idles good, stays running. The problem is the rubber boot from carb to intake on engine pops off when I accelerate. I have put it back on so many times it is beyond frustrating. Is it simply the clamp is old? I see no tears in the boot and it just won't stay on.

 

Is it on solid? This should slide over both the carb and the intake, and have a hose clamp style clamp around both ends that fasten it down around both metal surfaces with a phillips screw. Once that is tight, there should be no way it would come off. Does it have the clamp on both ends?