Mercury 45 Service Manual

CARBURETOR
90-828631R3 MARCH 1999 Page 3B-27
5. Remove idle mixture screw.
NOTE: 45 hp Models – Screw Adjuster (91-809906A1) is required to remove idle mixture
screw.
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a
b
c
a-Idle Mixture Spring
b-Idle Mixture Screw
c-Plug
Inspection
CAUTION
Do not use steel wire for cleaning the jets as this may enlarge the jet diameters and
seriously affect performance. Use a petroleum based solvent for cleaning and blow
out all passages with compressed air.
1. Inspect carburetor body, replace if cracked or damaged.
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2. Inspect float, replace if cracked or damaged.
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3. Inspect pilot screw. Replace if bent or damaged.
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Mercury 45 Specifications

General

Horsepower	45 HP
Cylinders	3
Starting	Electric
Full Throttle RPM Range	5000-6000 RPM
Steering	Remote
Exhaust	Through Prop
Shaft Length	20 in