1993 50 Hsp Evinrude Link and Sync

gnrboyd

Petty Officer 2nd Class
Joined
Oct 18, 2007
Messages
157
My outboard runs fine but doesn't idle very well. (As discussed in a previous thread.) I tinkered with the idle speed screw last weekend and made an improvement but it still isn't where it should be. I checked out a Clymer manual at the library today, and started studying the link and sync procedure. As a first step, I measured the beginning default measurements found in the manual. The idle screw was less than the what it should be and the spark lever cam follower is about 3/8" off the arrows on the cam. The other beginning settings found in the manual are ok or very close to the specs in the manual.

I've never done this before so I am a bit leery of digging in and making things worse without the proper knowledge and tools. The manual says I need a timing light, test wheel, and shop tach. None of which I currently own. Can this procedure be done without these things. Does any weekend boater really own a test wheel or shop tach? Are these really necessary? Any shortcuts?

The manual says you should adjust on the water. To me, that seems like a difficult task leaning out over the back of the motor while it is in the water making all of these adjustments. (and trying not to drop parts/tools in the water) I don't know if filling a trash can in my driveway would work or not on my 50 hsp or not but that sure would be easier. Any suggestions ? I thought about even pulling up the boat on the shore at the lake, and putting my chest waders on so I can stand next to the motor. Am I trying to make this more difficult than it is? How do you do it?

Thanks for your help.
 

5150abf

Vice Admiral
Joined
Aug 12, 2007
Messages
5,808
Re: 1993 50 Hsp Evinrude Link and Sync

Buy a set of ears and you can do it in the driveway, you can get a set here at iboats or Wal Mart.

You do need a timing light though, with the timing and throttle linked it can be alittle tricky to get it synced just right but not impossible.

I would reccomend an OEM manual either from iboats or Ebay, Seloc is okay but not much info and normally none on a particular engine, an OEM covers only your engine.

I have the same engine, 1980, but it has been awhile suince I have done it, I don't have a test wheel or a tach and still got it done.
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: 1993 50 Hsp Evinrude Link and Sync

Seloc, nor Clymer has the complete process. get an OEM manual.
 

gnrboyd

Petty Officer 2nd Class
Joined
Oct 18, 2007
Messages
157
Re: 1993 50 Hsp Evinrude Link and Sync

So what are my chances of messing things up with the Clymer manual, without the test wheel and shop tach, in the driveway, and not a tremendous amount of mechanical ability?
 
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