| Type of engine | 2‐cylinder, V‐type, L‐head, air‐cooled |
|---|---|
| Cylinder bore | 2¾ in. |
| Stroke | 313⁄16 in. |
| Piston displacement | 45.12 cu in. |
| Compression ratio | 5.0:1 |
| Horsepower (N.A.C.C. Rating) | 6.05 |
Engine number (serial), left side of engine base, just below frontcylinder. | |
40. TUNE‐UP.
a. Tune‐up consists of making correct adjustment to valve tappets, circuit breaker ignition points, spark plug electrodes: checking and correcting ignition timing; draining and flushing carburetor bowl; cleaning and flushing gasoline strainer; cleaning muffler outlet, servicing air cleaner, and adjusting carburetor.
(1) Valve tappet adjustment (par. [43]).
(2) Circuit breaker point adjustment (par. [84]).
(3) Spark plug service (par. [83]).
(4) Timing ignition (par. [86]).
(5) Draining carburetor bowl (par. [73]).
(6) Cleaning fuel strainer (par. [72]).