This manual covers the Johnson 15 HP outboard motor, manufactured around 1975 and likely within the 1973-1976 generation. Designed for boating, this 15 horsepower internal combustion engine utilizes gasoline and features a water-cooled system, carburetor fuel delivery, and either oil injection or pre-mix lubrication. Ignition is handled by a breaker point system, and starting can be manual or electric, depending on the specific model. The engine may also be equipped with an alternator or generator for battery charging. This outboard motor represents a reliable and well-engineered solution for marine propulsion.
The purpose of this English-language owner's and factory manual is to provide comprehensive guidance for the operation, maintenance, and repair of your Johnson 15 HP outboard motor. It details essential procedures such as fuel filter maintenance, carbon removal, and off-season storage. The manual also includes a troubleshooting guide to assist with diagnosing and resolving common issues, along with descriptions of the power head and lower unit components. Technical specifications, including recommended spark plug types and gaps, are also provided, ensuring you have the necessary information to keep your motor running efficiently and reliably.
Johnson Owners Manual 15 HP 1975
Models
15504 - 15505 – 15554 - 15555
All the Usual information.
Owners ID - Cooling System -
Fuel Systems and Lubrication -
Starting – Plugs – Fuel filter –
Carbon Removal –
Off season Storage –
Trouble shooting –
Ignition Systems –
Power Head –
Lower Unit –
Electrical Systems
Remote Controls -
Now out of print. This is a Evinrude – Factory manual more precise than
The Climer clone manuals. Just covers this model and not 25 others as well.
Manual is dated 1975 But is probably suitable
for previous and Later years, 1973 -76
Johnson Owners Manual 15 HP 1975
Models
15504 - 15505 – 15554 - 15555
All the Usual information.
Owners ID - Cooling System -
Fuel Systems and Lubrication -
Starting – Plugs – Fuel filter –
Carbon Removal –
Off season Storage –
Trouble shooting –
Ignition Systems –
Power Head –
Lower Unit –
Electrical Systems
Remote Controls -
Now out of print. This is a Evinrude – Factory manual more precise than
The Climer clone manuals. Just covers this model and not 25 others as well.
Manual is dated 1975 But is probably suitable
for previous and Later years, 1973 -76
