Mercury 40 Service Manual page 467

NON-BIGFOOT GEAR HOUSING
Gear Housing Removal
To prevent accidental engine starting, remove (and isolate) spark plug leads from
spark plugs before removing gear housing.
1. Remove (and isolate) spark plug leads from spark plugs.
2. Shift into NEUTRAL.
2-Stroke Models
MERCURY/MARINER 30/40, AND 40/50
FORCE 40/50
3. Loosen jam nut. Unscrew attaching nut to separate shift shaft.
a -
b -
Page 6A-12
b
a
Jam Nut
Attaching Nut
WARNING
52832
90-828631R3 MARCH 1999