RIDER EXPERIENCED 2ND DEGREE BURNS DUE TO HEAT EMANATING FROM THE ENGINE DURING HOT WEATHER AND STOP-AND-GO TRAFFIC; REAR CYLINDER SHUTS OFF AND THEN MOTORCYCLE RUNS POORLY (NO ACCELERATION); ALSO AFFECTS BRAKING (REAR BRAKE GETS "MUSHY"); HAS RESULTED IN DISCOLORATION OF HORN AND AIR FILER COVER; OIL PRESSURE DROPS TO 0; HAVE HAD TO REPLACE 2 QTS. OF OIL IN 1300 MILES; LITERALLY WAS "SMOKING"; AMBIENT TEMP. PEGGED OUT AT 120 DEGREES. EXTREME SAFETY HAZARD TO RIDER AND DEALER CAN OFFER NO SOLUTION; CAN'T EVEN TUNE THE MOTORCYCLE BECAUSE THEY CAN'T DYNO A TRIKE. *TR