2-17
Outboard Rigging Guide - 2001
Jet Drive Eng. Mtg., Maintenance,
Shift Cable Instruction, Service Info.
Maintenance, Lubrication, and Storage
General
Occasionally, check all mounting bolts, intake
screws, linkage connections, etc., to be sure they
are tight.
Bearing Lubrication
The need for frequent lubrication of your jet drive
outboard cannot be overemphasized. We recom-
mend lubrication after each day's use and
every 10 hours of operation. Make greasing a
regular part of your cleanup. Use only
Yamalube Marine grease, or NLGI No. 1-rated
grease with a suitable grease gun.
The bearing lubrication fitting is located at the
top-left-front of the jet drive casing. It is capped
with a fitting on the end of the excess-grease exit
hose. Pump in enough grease to just fill the hose.
To remove the hose from the fitting, press the end
cap upward and toward the casing; to refit it, press
the hose end cap over the fitting.
Every 50 hours, pump in enough extra grease to
purge any moisture. The texture of the old grease
coming out of the hose will provide you with an
indication of conditions inside the bearing hous-
ing. (A gradual increase in moisture content indi-
cates seal wear.) If the grease begins to turn a
dark, dirty gray, the bearing(s) and seals
should be inspected and replaced as necessary.
Some discoloration of the grease is normal dur-
ing the break-in period on a new set of seals.
Impeller Clearance Setting
When, after use in a watercourse whose bottom is
sand and gravel, the clearance between the
impeller edge and the water intake casing wall
becomes more than about 1/32", one or more of
the shim washers that space the impeller can be
transferred from the stack underneath to the top of
the impeller. This locates the impeller further into
the tapered casing to reduce the clearance. Be sure
to grease the shaft hole in the impeller, the key,
sleeve, and shaft threads any time it becomes nec-
essary to remove the impeller.
NOTE: Your jet drive is equipped with a shear
key to protect it in the event of a rock jam. This
can be located by removing the water intake hous-
ing and the drive shaft nut. The key holds the jet
drive impeller on the driveshaft. This operation is
similar to that on a propeller drive. After replacing
the key, draw the shaft nut up tight (17 ft-lb.) to
remove any play between the impeller and shaft.
Note the position of the impeller shim washers
and replace them in the same order as removed.
Linkage Adjustment
Occasionally, check the adjustment of the shift
linkage. In "Forward", the reverse gate should be
firmly locked. This will eliminate rattle, and pre-
vent wave action from accidentally shifting the
gate into reverse. (See "ADJUSTMENTS" [page
2-27] for the proper procedures.)
Salt Water Operation
Both aluminum and stainless steel have been
extensively used in the construction of your jet
drive. These and other materials have been either
treated or are inherently resistant to corrosion. In
addition, the intake grille, special key, and
exhaust tube are galvanized to further minimize
corrosion. It is recommended, however, that,
when not to use, the motor be tipped up so the jet
drive casing is out of the water.
When your jet drive is used in
salt water more than in fresh, remove all
mounting hardware, and grease it at least once
every six months. Failure to do this may result
in the hardware being difficult, if not impossi-
ble, to remove at a later date.
NOTE: To facilitate removal of an impeller that
has frozen to the driveshaft, use a hammer and a
block of wood, and tap the impeller blades in the
direction of engine rotation. This will release the
shear key.
NOTE: A slightly distorted shear key may be
reused.
Storage
Consult your regular Owner's Manual for prepar-
ing the motor part of your jet drive for storage. In
addition, clean and grease all hardware, and
remove and refit the jet drive impeller, greasing
the bore, key, and plastic sleeve.
CAUTION:
Summary of Contents for C-50
Page 2: ......
Page 9: ......
Page 35: ......
Page 37: ......
Page 61: ......
Page 63: ......
Page 65: ...2 2 Outboard Rigging Guide 2001 Engine Mounting Dimensions ...
Page 67: ...2 4 Outboard Rigging Guide 2001 Engine Mounting Dimensions ...
Page 71: ...2 8 Outboard Rigging Guide 2001 Transom Mounting Patterns 25HP 2 Cylinder ...
Page 72: ...2 9 Outboard Rigging Guide 2001 Transom Mounting Patterns 25X3 3 Cyl 30HP 40HP Manual Tilt ...
Page 109: ......
Page 111: ......
Page 155: ...3 44 Outboard Rigging Guide 2001 Boat Wiring Diagrams T9 9 with 703 Control ...
Page 156: ...3 45 Outboard Rigging Guide 2001 T9 9 with Switch Panel ...
Page 177: ...3 66 Outboard Rigging Guide 2001 After Market Dash Wiring ...
Page 178: ...3 67 Outboard Rigging Guide 2001 COMPLETE BOAT WIRING DIAGRAMS 70 90HP F80 F115 ...
Page 179: ...3 68 Outboard Rigging Guide 2001 Complete Boat Wiring Diagrams V4 V6 Single Engine ...
Page 180: ...3 69 Outboard Rigging Guide 2001 Complete Boat Wiring Diagrams V4 V6 Single Engine Cont d ...
Page 181: ...3 70 Outboard Rigging Guide 2001 Complete Boat Wiring Diagrams V4 V6 F115 Dual Engine ...
Page 182: ...3 71 Outboard Rigging Guide 2001 Complete Boat Wiring Diagrams V4 V6 F115 Dual Engine Cont d ...
Page 183: ...3 72 Outboard Rigging Guide 2001 Complete Boat Wiring Diagrams V6 HPDI Single Engine ...
Page 184: ...3 73 Outboard Rigging Guide 2001 Complete Boat Wiring Diagrams V6 HPDI Dual Engine ...
Page 185: ......
Page 187: ......
Page 236: ......
Page 242: ...5 5 Outboard Rigging Guide 2001 Tachometer Digital Multi function Tachometer ...
Page 359: ...6C 2 Outboard Rigging Guide 2001 E FEATURES ...
Page 376: ...7 15 Outboard Rigging Guide 2001 F15 F25 Remote Control Attach Kit REMOVAL ...
Page 406: ...NOTES ...
Page 407: ...NOTES ...
Page 418: ...Outboards 6X1 DUAL STATION SYSTEM INSTALLATION MANUAL YAMAHA MOTOR CO LTD 6X1 28199 Y2 10A 1 ...
Page 423: ...10A 6 GENERAL INFORMATION WIRING AND COMPONENT PARTS Single engine system Second station ...
Page 424: ...10A 7 Twin engine system Second station ...
Page 453: ...WIRING DIAGRAM FIRST STATION Single engine 10A 36 ...
Page 454: ...SECOND STATION Single engine 10A 37 ...
Page 455: ...10A 38 ...
Page 456: ...10A 39 ...
Page 457: ...Outboards 6X1 DUAL STATION SYSTEM SERVICE GUIDE 10B 1 ...
Page 460: ...10B 4 ...
Page 462: ...10B 6 Outboard Rigging Guide 2001 EXTERNAL VIEW OUTLINE OF FEATURES ...
Page 495: ...10B 39 Outboard Rigging Guide 2001 ...