Thanks: 
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Reply With QuoteIts probably the carbs, one or more leaking down. Or compression, have you checked compression on all cyl?
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Slabmaster II
1982 Evinrude 115hp starting issue
Hey Everyone,
I've had this problem the last few times on the water, The motor cranks and runs fine but after sitting it's hard to start and will almost kill the battery. I thought it was a fuel problem so I used my external 6 gal. tank and didn't fix the problem I have since changed all fuel lines on motor, replaced the power packs, new spark plugs and installed new ignition switch and the problem still exists, I have no Idea what to do next and cant seem to find a mechanic to work on my old motor, any suggestions would be greatly appreciated! I am in Moore county and if you know someone that does work on older motors please shoot me a number.
Thanks in advance
Crappie.com 1K Star General
Its probably the carbs, one or more leaking down. Or compression, have you checked compression on all cyl?
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Slabmaster II
Crappie Wall Hanger II
Check choke linkage and make sure all the butterflies are closing completely.
J White LIKED above post
Crappie Wall Hanger II
Not the best long term plan, but I had an old Evinrude 9.9 that wouldn’t cold start without a shot of starter fluid. Food for thought
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Might not be any help, but if you need parts for that motor you can find ALMOST every part you need here Outboard Motors, Boat Parts, Marine Engines, Inboard Boat Motor. They've had every part I've needed for an '80 100hp 'rude that I have.My motor is just about the same as yours except mine was built as commercial and I've even been told they didn't make a 100hp. Outboard Motors, Boat Parts, Marine Engines, Inboard Boat Motor
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It is more than likely the carburetor(s). You either have trash in one of the needle valves or trash or varnish in the jets. it’s not letting the fuel fill up the bowl of the carburetor for it to go into the cylinder. There’s also some diaphragms, gaskets, and o-rings inside the carburetor and if they are dry rotted or cracked, they will not pump the proper amount of fuel to start the engine. I recommend servicing all carburetors at one time so the will all be the same level of cleanliness and functionality.
Also, if you have a lot of fuel pouring out of the carburetor or flooding the engine, more than likely one of the floats inside, the carburetor bowl has a hole in it and it is filling up with fuel and sinking to the bottom of the bowl causing a flooding issue by not being able to float up and cut the fuel supply off at the needle. You can check to see if you have a flooding issue by checking a spark plug to see if it’s wet with fuel.
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When you Try to restart it, do you have to pump the bulb again? (Does it remain hard?) Also, do you leave the motor trimmed up while stopped? The carbs could be leaking down while sitting. But if they were needing cleaned or rebuilt, I would think you would have the problems starting the first time also.
Crappie Wall Hanger II
Problem solved!!
I took the starter motor off and the starter pinion. The Bendix was slipping! The Bendix is on a starter pinion shaft. The lower part of the pinion shaft rides in the block. The upper part rides in a metal cup in a plastic housing on top of the motor. The plastic was broken around the cup. I would not have noticed it, but I ordered a new pinion shaft and Bendix from Crowley Outboard Parts, and they sent me what I needed, not what I asked for. Installed it all and starts right up!!
That’s real service!!
