Trying to find year and gap settings for old Johnson 10hp

[smak90]

I've got an old Johnson Sea Horse that I believe is a mid 50's model. Does anyone know how I can determine the model year, gap settings (for points and plugs), and the spark plug type to use?<br /><br />The model number is: OD-19<br />The engine is bronze colored.<br /><br />Thanks in advance,<br />Scott

 

[Bear]

Re: Trying to find year and gap settings for old Johnson 10hp

OD-19 is probably QD-19<br />QD-19 Johnson 1958 <br />10 hp @ 4000 rpm<br />16.6 cu.in. = 272.0 ccm 2 cylinder <br />67 lbs. = 30.4 Kg <br />Prop 8 1/4 x 8 1/2 <br />gear ratio 15:26<br /> Picture<br /><br />Fuel/oil mix 24:1<br /><br /> 1956 10 hp points and plug caps and more

 

[alcan]

Re: Trying to find year and gap settings for old Johnson 10hp

Points .020 plugs ChampJ6C @ .030