Seeking to solve the Mystery

[Thunderbolt700]

Making progress and throwing money at my Evinrude.<br />It seems to devour money as quickly as fuel. Well,<br />I guess they are one and the same.<br />Motor: 1981 Evinrude<br />35hp 2 cyl, single carb<br />Model: E35ELCIG<br />Here is where I am at, for those of you who want<br />to divulge secrets to the Mystery of my Evinrude.<br />Went to fire her up for summer, I know better late than never, she fired right up and died out<br />after about 5 seconds of running. Okay I thought,<br />time for fresh plugs. I already have fresh gas,<br />proper ratio and fully charged battery. I'm ready to go now. pile everyone on the pontoon boat<br />No, same senario. I cranked a few more times<br />fired up in neutral, same deal. It would start and<br />run for about 2-5 seconds and die, just like turning off the key. I tried again it fired right<br />off and I immediately put it in gear and it ran<br />and ran till I put it back to neutral and it died<br />right out, no cough, sputter, just like shutting<br />off the key. The local handyman suggested a nuetral safety switch. The same results after installation and adjustment of safety switch. <br />The outboard mechanic said sounds like dirt, varnish possibly in your low speed idle circuit.<br />Sold the kit stating, I know you're handy with<br />cars, snowmobiles, etc. Rebuilt the carb it is as<br />shiny as new inside and out, installed on the motor. Same scenario as before. Alright, what am I<br />missing to be able to solve this thing and let me<br />get back on the water. I have a couple of mercury<br />manuals but I have not purchased an Evinrude yet!!! Give me a vintage Pontiac to wrench any day<br />These outboards are their own animals.( Sorry about the long post) Summary it will start in neutral and if shifted immediately in to gear it<br />will run until placing back to neutral.<br /><br />Thanks,<br /><br />Lost In The Northwoods

 

[Joe Reeves]

Re: Seeking to solve the Mystery

Thunderbolt.... The safety switch is simply a gound circuit for the electric starter solenoid. If the engine cranked over in neutral, your original safety switch was okay.<br /><br />Your problem is still the carburetor. There is a fixed brass high speed jet located in the center portion of the float chamber (in back of that screw that you see in the front bottom portion of the float chamber). It must have a perfectly clean inside diameter. There will also be a small passageway from the bottom center portion of the upper carb body that leads upwards to the idle passageway which must be perfectly clean.<br /><br />There is a scribe mark on the cam that goes against the carburetor roller. The throttle should just start to open when that scribe mark aligns with the center of the roller.<br /><br />The correct procedure for adjusting the slow speed needle valve follows.<br /><br />(Carburetor Adjustment - Single S/S Adjustable Needle Valve)<br /><br />Initial setting is: Slow speed = seat gently, then open 1-1/2 turns.<br /><br />Start engine and set the rpms to where it just stays running. In segments of 1/8 turns, start to turn the S/S needle valve in. Wait a few seconds for the engine to respond. As you turn the valve in, the rpms will increase. Lower the rpms again to where the engine will just stay running. Eventually you'll hit the point where the engine wants to die out or it will spit back (sounds like a mild backfire). At that point, back out the valve 1/4 turn. Within that 1/4 turn, you'll find the smoothest slow speed setting. <br /><br />When you have finished the above adjustment, you will have no reason to move them again unless the carburetor fouls/gums up from sitting, in which case you would be required to remove, clean, and rebuild the carburetor anyway.

 

[steelespike]

Re: Seeking to solve the Mystery

Very nice post Joe.

 

[fireman 757]

Re: Seeking to solve the Mystery

Joe is the best and he is right. Make sure when you change the float set it so it is level with the carb when turned upside down.