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Overview
Identification Mark
The serial number is printed on a label which is fixed to the port side of the clamp bracket
or the upper part of the rotary bracket. The serial number is recorded in the blank of the label to help
you order spare parts from dealers or for your reference in case the engine is stolen.
1. Position of the serial number
The SN indicates the following:
Selection of propeller
The performance of the outboard motor is seriously affected by the propeller. Improper
selection will have adverse effects on the motor. When the ship runs in full load, the motor will
operate at low speed for a long time. At this time, the propeller with smaller pitch should be selected,
whereas the propeller with larger pitch should be selected to maintain the normal operation of the
engine.
When the engine is at maximum load, if the throttle is half or more of the full throttle range,
the selected propeller is appropriate.
Protection at work
In order to prevent danger or accident during maintenance and improve work quality, please
observe the following safety regulations.
1. Fire prevention
Gasoline and various lubricating oils and greases are easy to burn; Keep away from heat
sources, sparks and open flames during operation.
2. Ventilation
Gasoline vapor and engine exhaust gas are highly toxic. Massive inhalation of such
substances can cause shock and even death. When testing the engine indoors, please keep
good ventilation conditions.
3. Self-protection
Wear protective glasses when drilling, grinding or using air compressors. Wear protective
gloves and safety shoes when necessary.
Outboard motor series number
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