My inline 4 cyl maxim will suddenly drop to half or less power after
running, for about an hour, in the city in hot--90 plus--weather. My
mechanic is convinced its in the electrical system--he's replaced a pick-up
coil, spark plug wires, and coil wiring harness all to no avail. I've had
the bike for several years--40k miles on it--and this is the first it is
happening. Any similar bikes with this problem?