1982 Evinrude 35 hp stall

[mgsolakis]

The motor will start and run good at idle but as I throttle up it stalls. Does this sound like a blockage in the carb? The carb seems to only have one ajustement needle and that seems to be a low speed needle. It also speeds up when choked. Suggestions? One other issue is that the key on the control starts the motor but it will not shut it off. I've been choking it out to stop it. Where would I start looking for that problem?

 

[jimmbo]

Dirt/gum/varnish in the carb might be the problem, Fuel pump, filter, gas line, tank can also can that problem. The shut off proplem, could be the switch, the wires and connections anywhere between the switch and the ignition system on the engine
http://maxrules.com/graphics/omc/wiring/25_35_82-83_elec-remote.jpg

 

[oldboat1]

agree with jimmbo -- think in terms of dual problems. Can try adjusting the l.s. needle a little richer, but sounds like carb cleaning and rebuild is needed.

 

[mgsolakis]

Okay so I sprayed some carb cleaner in the carb left it overnight. Adjusted the needle a bit and took it out. It was a lot better. Got it up to around half speed or so, it was a bit jittery speeding up and slowing down. I noticed a fuel leak under the fuel pump and fixed that but it did not make much difference. Looks like I'll have to pull the carb off and clean it up.

 

[oldboat1]

Think that's right. Take it apart and soak it, followed by some careful poking in all openings and carb spray with the plastic nozzle.