maintenance YAMAHA SUPERJET 2017 User Guide

Maintenance
62
sary technical knowledge, poor engine
performance and damage may result.
The carburetor is a vital part of the engine and
requires very sophisticated adjustments.
Most adjustments should be left to a Yamaha
dealer who has the professional knowledge
and experience to make them.
However, the operator may adjust the engine
idling speed as part of the usual maintenance
routine.
EJU34472Adjusting the engine idling speed
(1) Place the watercraft in the water.
(2) Start the engine and warm it up for 1 to 2
minutes.
(3) While using a diagnostic tachometer,
turn the throttle stop screw to adjust the
engine idling speed to specification. Turn
the throttle stop screw clockwise to in-
crease the engine idling speed or coun-
terclockwise to decrease the engine
idling speed.
1Throttle stop screw
Engine idling speed:
1300 ±50 r/min
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70
Index
2-stroke engine oil ................................... 28
A
After removing the watercraft from the
water ..................................................... 49
B
Battery care.............................................. 51
Battery checks ......................................... 36
Battery, jumping ....................................... 67
Beaching the watercraft ........................... 49
Bilge water check..................................... 36
Bilge water, draining ................................ 30
Bilge water, draining on water ................. 30
Boarding and starting in deep water........ 47
Boarding and starting in shallow water.... 46
Bow rope hole .......................................... 25
C
Capsized watercraft ................................. 48
Carburetor, adjusting ............................... 61
Choke cable, adjusting ............................ 61
Choke knob.............................................. 21
Cleaning ................................................... 54
Cleaning the watercraft ............................ 51
Cooling water pilot outlet ......................... 21
Cooling water pilot outlet check .............. 39
Craft Identification Number (CIN)............... 1
Cruising limitations..................................... 9
E
Emergency procedures ............................ 66
Engine break-in ........................................ 32
Engine compartment check ..................... 35
Engine idling speed, adjusting ................. 62
Engine overheat warning system ............. 22
Engine serial number ................................. 1
Engine shut-off cord (lanyard) check ....... 38
Engine shut-off switch ............................. 19
Engine stop switch................................... 19
Engine unit check..................................... 36
Enjoy your watercraft responsibly............ 15
Equipment ................................................ 24
F
Fire extinguisher check ............................ 39
Fire extinguisher container....................... 26
Fire extinguisher container checks .......... 39
Flushing the cooling water passages....... 50
Fuel .......................................................... 28Fuel and engine oil requirements ............. 28
Fuel cock knob......................................... 21
Fuel filter, checking .................................. 61
Fuel level check........................................ 35
Fuel system checks ................................. 35
Fuel tank, filling ........................................ 29
Fuse, replacing ......................................... 67
G
Getting to know your watercraft .............. 40
Glossary, watercraft ................................. 16
H
Hazard information................................... 13
Hood ........................................................ 24
Hood check .............................................. 39
Hull and deck check ................................ 39
I
Identification numbers ............................... 1
J
Jet intake and impeller, cleaning.............. 66
Jet intake checks ..................................... 39
Jet thrust nozzle angle, adjusting ............ 57
Jumper cables, connecting ...................... 67
L
Labels, important ....................................... 3
Labels, other .............................................. 7
Labels, warning .......................................... 4
Launching the watercraft ......................... 41
Learning to operate your watercraft......... 40
Leaving the watercraft.............................. 43
Limitations on who may operate the
watercraft ................................................ 8
Long-term storage ................................... 54
Lubrication ............................................... 54
Lubrication points .................................... 61
M
Main components, location of ................. 17
Maintenance............................................. 56
Manufactured date label ............................ 2
Mixing fuel and oil .................................... 28
O
Operating in weeded areas ...................... 49
Operating positions .................................. 40
Operating the watercraft .......................... 43
Operating your watercraft ........................ 40
Operation requirements ........................... 10
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Index
71
P
Periodic maintenance chart ..................... 59
Post-launch checks ................................. 39
Post-operation care ................................. 50
Pre-launch checks ................................... 35
Pre-operation check points ..................... 35
Pre-operation checklist ............................ 33
Primary Identification (PRI-ID) number ...... 1
R
Recommended equipment ...................... 12
Rustproofing ............................................ 55
S
Safe boating rules .................................... 14
Safety equipment check .......................... 39
Spark plugs, checking ............................. 60
Start switch .............................................. 19
Starting off ............................................... 45
Starting the engine on water .................... 41
Steering friction, adjusting ....................... 56
Steering pole ............................................ 20
Steering pole check ................................. 37
Steering system ....................................... 20
Steering system checks ........................... 36
Stern rope hole ........................................ 25
Stopping the engine ................................. 43
Stopping the watercraft ........................... 45
Storage pouch ......................................... 25
Storage pouch checks ............................. 38
Submerged watercraft ............................. 69
Switch checks .......................................... 38
T
Throttle lever ............................................ 20
Throttle lever checks ................................ 37
Tool kit ..................................................... 56
Towing the watercraft .............................. 68
Transporting ............................................. 31
Troubleshooting ....................................... 64
Troubleshooting chart .............................. 64
Turning the watercraft .............................. 43
W
Water separator ....................................... 22
Water separator check............................. 36
Watercraft characteristics ........................ 13
Watercraft control functions .................... 19
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