Re: Evinrude Speeditwin 6039 Starting Help

[JAY T. WALLS]

Speeditwins love fuel. My experience with them is to hit the primer about 10 times. The other thing is there is no need to adjust the low speed valve unless you have a running motor and are trying to get it to idle. When you are pulling the motor over with your rope it’s the high speed needle that needs to be adjusted. I’d say open the high speed needle 1 turn and open the low speed needle 1 turn also. Push the primer 10 times and start pulling. After pulling 8 times with no results assume its flooded and shut off the high speed needle. continue pulling. After 8 to 10 more pulls you should add enough oxygen to lean it out enough to start.
When it starts don’t forget to quickly open the high speed needle to keep it running. Adjust the high speed needle for maximum response. Throttle the engine back to idle and close the idle needle 1 click at a time until it coughs and dies. It went lean while idling and died. Open the idle a couple clicks and restart the engine. Bring it to idle again and see how it dies. If the engine runs really slow and does not cough and die it’s either just right or slightly rich. Most folks get them to cough and die then richen them up a couple clicks and idle fine. The only time to adjust idle is with the engine idling.
You should also do all this mixture set up on a boat while staying close to help or a dock. My advise is to get it to start in your driveway if you want, kill it then get the prop in water. It is very possible to over rev an outboard with no load on the prop.