my bike has developed an air leak somewhere in the arnotts system over this past weekend. i can air up the system, and deflate the system ok. it seems a little slow. but after a few minutes the system is all the way down. i've checked for leaks over the entire system.( soapy water sprayed on all lines and fittings, compressor too) no visable bubbles. next i checked the electrical connections and grounds. all good, nothing loose and i took all grounds off and wire brushed then up and reinstalled them. the fuse is still good and the connections at the horn switch are good. i'm at a loss here and am starting to think that the compressor might have a fualty check valve. any thoughts on what to do next.