What to checkfore on Evinrude or Johnson 70 hp/60hp motor

[kingsurvey]

Looking to buy one of two boats that have Johnson/Evenrude engines. The Johnson is a 60 hp and the Evenrude is a 70 hp. Don?t know the exact dates but they are both in the 1970 to 1980 vintage. What do I check for? Compression of 130 lbs., and what else.
Worried Nellie
Richard King

 

[iwombat]

Re: What to checkfore on Evinrude or Johnson 70 hp/60hp motor

Color of the spark plugs.
Spark check
Lower unit fluid
Discolored paint on the powerhead.

I'm sure others will chime in with more.

 

[tashasdaddy]

Re: What to checkfore on Evinrude or Johnson 70 hp/60hp motor

BUYING A USED MOTOR

overall condition, condition of the place you are buying it from, usually tells you how they care for things. compression 100 + psi, and within 10% of each other, good strong blue spark, no water in the lower unit oil. look for discolored paint, (sign of over heat at
one time, also scarred up bolts, as why. have them start it. if they fail to put it in a barrell or tank, or on muffs, or in the water, to start it they don't know what they are doing. best yet is to take it for a 30 min to 1 hour test run. also if remote controlled motor, the controls should come with it.