Mercury 50 Service Manual

CARBURETOR
90-828631R3 MARCH 1999 Page 3B-17
Choke Shutter Closing Adjustment
1. Measure gap “a” and refer to the thermal gap graph below, if out of specification adjust.
2. Adjust gap by tightening/loosening the choke valve closing screw (b) to obtain the speci-
fied gap found on the graph.
a
b
a-Gap
b-Choke Shutter Closing Screw
THERMAL GAP GRAPH
Gap (mm)
Temp. (°C)

Mercury 50 Specifications

General

Horsepower	50 hp
Cylinders	3
Steering	Remote
Starting	Electric
Displacement	995 cc
Fuel Induction System	EFI (Electronic Fuel Injection)
Alternator Output	18 amp
Shaft Length	20" / 508 mm
Dry Weight	112 kg
Engine Type	4-Stroke