90-824052R3 JUNE 2002 JET OUTBOARDS - 6F-11
Steering Pull Adjustment
The steering on some boats will have the tendency
to pull towards starboard. This pulling condition can
be corrected by using a pliers and bending the ends
of the exhaust fins (a) 1/16 in. (1.5mm) toward the
starboard side of the outboard.
a
a - Exhaust Fins
Impeller Clearance
Adjustment
1. The impeller should be adjusted so there is
approximately 0.030 in. (0.8mm) clearance
between the impeller edge and liner. Operating
the jet drive in waters that contain sand and
gravel can cause wear to the impeller blades, and
the clearance will start to exceed 0.030 in.
(0.8mm). As the blades wear, shims (a) located
in the stack outside of the impeller can be
transferred behind the impeller. This will move
the impeller further down into the tapered liner to
reduce the clearance.
2. Check the impeller clearance by sliding a feeler
gauge through the intake grate and measure the
clearance between the impeller edge and liner. If
adjustment is required, refer to Impeller Removal
and Installation.
.03 in. (.8mm)
a
a - Shims
Worn (Dull) Impeller
leading
edge
Do Not sharpen or alter the
top side lifting angle
Sharpen to a 1/32 in. (0.8mm) radius by
removing material from bottom side only
Enlarged
View
The intake of gravel through the pump can round off
and wear the leading edges on the impeller. Some
conditions you may experience from a worn impeller
are (1) a noticeable performance loss, especially on
acceleration, (2) difficulty getting the boat on plane,
or (3) an increase in engine RPM at wide open
throttle. Check the impeller blades occasionally for
damage. Use a flat file to resharpen the leading
edges as shown.
Flushing the Cooling System
Use Quicksilver accessory hose coupling Part
Number 24789A1.
1. Remove plug and gasket (a) and thread-in hose
coupling (b).
2. Attach a water hose to the hose coupling. Turn on
the water gently, start the engine, and run it at idle
speed only.
3. Check for a steady stream of water flowing out of
the water pump indicator hole. Continue flushing
the outboard for 3 to 5 minutes; adjust water
pressure if needed.
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