Load Bearing Member
Join Date: Sep 2011
Location: Derry, NH
Thanked 12 Times in 11 Posts
Rep Power: 4
Re: 1981 Evinrude 9.9hp 2str starts but won't run
I adjusted the lean/rich setting a little richer and it now runs much smoother and restarts easily. I still can't slam the throttle to minimum, the motor dies at idle.
If the mark on the cam follower is idle, then it runs great at idle. It seems a little fast for idle, but what do I know? Also, if that mark is idle, why is the throttle allowed to go further down?
I got the motor on the back of the boat, but it wouldn't start. Have I mentioned that it doesn't charge the battery? The elect. start was an upgrade and it never got the 12VDC output kit. I depleted the battery severely during the test and tune phase and I only have a little trickle charger (my good one is up at camp).
So, once it was on the boat, I got one crank from the battery and no more.
I had to be towed back to my mooring (in shame!).
I hooked up the solar charger and left it for 2 days.
I went back out yesterday and it started right up, first crank. I ran it for 5 minutes and shut it down; it started right back up.
So except for the idle issue, I'm good to go. I might let the next owner worry about that. Looking at the water I dumped out of my test stand bucket convinced me that four stroke engines are the way to go. Yuck!
1978 Bristol 29.9 #122
Testing a mother's love since 1962
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