Does this sound right 35 mph? Canadain gallon about 30 us gallon, had all new plugs,wires cap ,air filters but seems to have a little skip after it is hot. choke is opened when it should be .should i be getting more mph on the street around town? i do not drive it hard at all . It is a diahatsu jumbo with a carb , not fuel injected.any body have this problem ?need help. THANKS !