Re: Re: Re: 1973 EVINRUDE 50HP
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Posted by Spike
(220.127.116.11) on September 23, 2005 at 09:13:37:
In Reply to: Re: Re: 1973 EVINRUDE 50HP posted by bob on September 23, 2005 at 08:15:19:
My manual only goes to 72.Your ignition is self generating the key switch is open to run and closed to ground to stop(kill)
Your motor may have a CDI ignition.something is failing that is common with both cylinders.
Be sure all connections are clean and tight.
Are you working with a manual?Improper trouble shooting procedures can damage the system.Manual says weak or incinsistant spark to both coils suspect charge coils no spark at all suspect switch, switch wiring or power pack."Charge coils can be checked with a volt/ohmmeter unhook the light brown lead and check to ground should be 800-950 ohms".It may check ok at room temp.
You seem to be expierencing spark failure to both plugs at once that would seem to indicate a powerpack failure.I'm thinking the charge coils are a lot less than the powerpack so I would check them and replace if the least suspicious.
Powerpack is the last resort.Unfortunately I'm thinking it will be the powerpack.But I'm no pro.
Good luck and get that manual before doing any more on your motor.