I have a 1989 Suzuki DT 65. The motor starts great every time I start it, except on the boat ramp when I'm in an inclined position. This happens when I go fishing with someone who can back me in. When I go with my wife I have to back in and unload the boat and then boat the trailer away. When I come back yo start it, it starts great (level position). It starts great at home as well with the bunny ears. What might be causing this and what can I do. I'm mechanically challenged, so simple terms for this guy. The boat does start on an incline, but takes forever. Thanks