4. Turn the slow speed mixture screw slowly in until the engine starts to
misfire or stall due to a lean mixture. Note the position of the screw slot.
5. Turn the slow speed mixture screw slowly out until the engine start to load
up or fire unevenly due to a rich mixture. Note the position of the screw
slot.
6. Set the slow speed mixture screw midway between the rich and lean
setting. When in doubt, set the mixture slightly rich rather than too lean.
ENGINE IDLE SPEED ADJUSTMENT
1. Engines equipped with an adjustable idle speed screw:
a. With boat tied securely to dock, start engine and allow it to warm up.
b. Shift the outboard to forward gear while maintaining idle speed. Make
sure the primer/fast idle knob is pushed all the way in and turned to
the slowest idle speed.
c. Adjust the idle speed screw to obtain the recommended engine idle
speed. Refer to
General Information
‑
Specifications.
3049
2. Engines not equipped with an adjustable speed screw:
a. The carburetor has been calibrated for the engine to run at the
recommended idle speed. The engine idle speed is not adjustable.
HIGH SPEED MIXTURE ADJUSTMENT
The carburetor is equipped with a standard size high speed fixed jet that is
replaceable for operation at higher elevations.
Lubrication Points
1. Lubricate the following with Quicksilver or Mercury Precision Lubricants
2‑4‑C with PTFE.
MAINTENANCE
eng
59
Содержание 10 Marathon
Страница 2: ...eng ...
Страница 6: ...eng iv ...