"Our DT115 (1986), we
"Our DT115 (1986), we drop the motor on to the trim rams so that the carb. floats are near their normal operating aspect, pump the fuel line bulb till firm, gear lever in neutral, rotate the ignition switch key whilst pressing it in (to activate the choke) and the engine should start. It should run automatically at a fast idle for 10 or 15 seconds before dropping back to normal idle revs. You can use the throttle lever to help it if the motor wants to sneeze and die.
For the rest of the day our motor starts at the flick of the key (without choke).
Hope this helps."