Johnson 55 plugs & mixture

[gwyldwr]

Hi<br />I have just bought a boat with a Johnson 55 Seahorse, model No 55EL78s (1978 I assume), no manual of course, does any one know the spark plugs type and gap also the fuel mixture.<br /> <br />Thank you in anticipation<br /> <br />David

 

[rickdb1boat]

Re: Johnson 55 plugs & mixture

gwyldwr <br /><br />Champion QL77JC4 gapped at .030. 50:1 on the mixture. 1 pint TCW-3 oil to 6 Gallons of gas.

 

[gwyldwr]

Re: Johnson 55 plugs & mixture

Thanks Rick<br /><br />David