Page 3 of 131

E
EJU00270
To the owner/operator
Thank you for choosing a Yamaha water-
craft.
This Owner’s/Operator’s Manual contains
information you will need for proper opera-
tion, maintenance, and care. A thorough
understanding of these simple instructions
will help you to obtain maximum enjoyment
from your new Yamaha. If you have any
questions about the operation or mainte-
nance of your watercraft, please consult a
Yamaha dealer.
Because Yamaha has a policy of continu-
ing product improvement, this product may
not be exactly as described in this Owner’s/
Operator’s Manual. Specifications are sub-
ject to change without notice.
This manual should be considered a per-
manent part of this watercraft and should
remain with it even if the watercraft is subse-
quently sold.Important manual information:
In this manual, information of particular
importance is distinguished in the following
ways:
The Safety Alert Symbol means
ATTENTION! BECOME ALERT!
YOUR SAFETY IS INVOLVED!
WARNING
Failure to follow WARNING instructions
could result in severe injury or death to
the machine operator, passenger(s), a
bystander, or a person inspecting or
repairing the watercraft.
CAUTION:
A CAUTION indicates special precau-
tions that must be taken to avoid damage
to the watercraft.
NOTE:
A NOTE provides key information to make
procedures easier or clearer.
EJU00272
WaveRunner XL800
OWNER’S/OPERATOR’S MANUAL
©2000 by Yamaha Motor Co., Ltd.
1st Edition, July 2000
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Co., Ltd.
is expressly prohibited.
Printed in USA
E_F0P71_info.fm Page 1 Tuesday, July 18, 2000 7:10 PM
Page 5 of 131
EEJU00273
CONTENTS
READ THIS OWNER’S/OPERATOR’S MANUAL CAREFULLY
BEFORE OPERATING YOUR WATERCRAFT.
GENERAL AND SAFETY
INFORMATION
1
FEATURE AND FUNCTIONS2
OPERATION3
MAINTENANCE AND CARE4
TROUBLESHOOTING AND
EMERGENCY PROCEDURES
5
APPENDIX6
E_F0P71_info.fm Page 3 Tuesday, July 18, 2000 7:10 PM
Page 50 of 131

2-25
E
6. The buzzer will sound twice. The warn-
ing light and “SET” blink for 2 seconds.
Then the display turns to “CLOCK” and
shows the time.
NOTE:
If the battery terminal is disconnected, the
clock will be reset to 12:00.
EJU00390
Hour meter
The hour meter is provided to make it
easy to follow the maintenance schedule.
The meter shows how many hours of
engine operation have elapsed since the
watercraft was new.
To show the hour meter, press the
“MODE” button until the display shows
“HOUR.M” while the engine is running.
EJU00659a
Trip timer
The trip timer is provided for counting the
time traveled on a given trip.
To show the trip timer, press the “MODE”
button until the display shows “TRIP.T” while
the engine is running.
1Minutes
2Seconds
1. When the display shows “TRIP.T,” press
the “A/SET” button to start counting. The
buzzer will sound once.
2. Press the “A/SET” button again to stop
counting. The buzzer will sound once.
3. Press “MODE” button for at least
2 seconds to set the time back to 00:00.
The buzzer will sound twice. The time
display and “TRIP.T” blink for 2 seconds.
Now it is ready to start counting.
E_F0P71-2.fm Page 25 Tuesday, July 18, 2000 8:20 PM
Page 93 of 131

E
4
EJU00515
MAINTENANCE AND
CARE
Storage....................................................... 4-1
Flushing the cooling system ................... 4-1
Lubrication............................................... 4-3
Fuel system............................................. 4-4
Battery ..................................................... 4-4
Cleaning the watercraft........................... 4-5
Maintenance and adjustments............... 4-6
Owner’s/Operator’s Manual and tool
kit ............................................................. 4-7
Periodic maintenance chart .................... 4-8
Inspecting the fuel system ...................... 4-9
Inspecting the oil injection system........ 4-11
Inspecting the steering cable................ 4-12
Inspecting the shift cable ...................... 4-12
Inspecting and adjusting the throttle
cable ...................................................... 4-12
Inspecting the QSTS mechanism ........ 4-13
Cleaning and adjusting the spark
plugs ...................................................... 4-14
Lubrication points .................................. 4-15
Adjusting the choke cable..................... 4-18
Inspecting the battery ........................... 4-19
Adjusting the carburetor ....................... 4-21
Replacing the fuse ................................ 4-22
Bleeding the oil injection pump............. 4-22
Specifications......................................... 4-23
E_F0P71-4TOC.fm Page 1 Tuesday, July 18, 2000 7:17 PM
Page 94 of 131

4-1
E
EJU00516a
Storage
WARNING
Always place the fuel cock knob in the
“OFF” position when storing the water-
craft, otherwise fuel could leak out into
the engine or engine compartment,
which would create a fire hazard.
Storage for prolonged periods of time,
such as winter storage, requires preventa-
tive maintenance to ensure against deterio-
ration. It is advisable to have the watercraft
serviced by a Yamaha dealer prior to stor-
age. However, the following procedures can
be performed by the owner.
EJU00913a
Flushing the cooling system
Flushing the cooling system is essential
to prevent the cooling system from being
clogged with salt, sand, or dirt.
CAUTION:
●Do not supply water to the cooling
water passages when the engine is not
running. The water could flow back
through the muffler into the crankcase
causing severe engine damage.
●Do not run the engine for more
15 seconds without supplying water,
otherwise the engine may overheat.
E_F0P71-4.fm Page 1 Tuesday, July 18, 2000 7:17 PM
Page 99 of 131

4-6
E
EJU00535a
Maintenance and
adjustments
Periodic inspection, adjustment and lubri-
cation will keep your watercraft in the safest
and most efficient condition possible. Safety
is an obligation of the watercraft owner. The
most important points of watercraft inspec-
tion, adjustment and lubrication are
explained on the following pages.
See your Yamaha dealer for genuine
Yamaha replacement parts and optional
accessories designed for your watercraft.
Remember that failures that are the result
of the installation of parts or accessories
which are not qualitatively equivalent to gen-
uine Yamaha parts are not covered by the
limited warranty.
WARNING
●Be sure to turn off the engine when
you perform maintenance unless oth-
erwise specified, otherwise an acci-
dent or injury could result from
unexpected operation, moving parts,
or electric shock. If the owner is not
familiar with watercraft servicing, this
work should be done by a Yamaha
dealer. Improperly serviced compo-
nents could fail or stop operating cor-
rectly, which could result in an
accident.
●Modifications to this watercraft not
approved by Yamaha may cause loss
of performance or excessive noise, or
render it unsafe for use. Consult a
Yamaha dealer before attempting any
changes.
E_F0P71-4.fm Page 6 Tuesday, July 18, 2000 7:17 PM
Page 100 of 131
4-7
E
Owner’s/Operator’s Manual
and tool kit
It is advisable always to carry the Owner’s/
Operator’s Manual and tool kit with you
whenever you use the watercraft. For your
convenience, a storage compartment 1 is
provided on the watercraft for the manual
and tool kit.
NOTE:
To protect these materials from water dam-
age, it would be a good idea to put them in a
waterproof bag.
The service information included in this
manual is intended to provide you with the
necessary information for completing your
own preventive maintenance and minor
repairs. The tools provided in the tool kit 2
are sufficient for this purpose. However, a
torque wrench may also be necessary to
tighten nuts and bolts.
E_F0P71-4.fm Page 7 Tuesday, July 18, 2000 7:17 PM
Page 101 of 131

4-8
E
EJU00536
Periodic maintenance chart
The following chart gives general guidelines for periodic maintenance. However, depend-
ing on your operating conditions maintenance may need to be performed more frequently.
(
●) This mark indicates maintenance that you may do yourself.
(
❍) This mark indicates work to be done by a Yamaha dealer.
*1: Grease capacity: 33.0–35.0 cm3 (1.11–1.18 oz)
*2: Grease capacity: 6.0–8.0 cm3 (0.20–0.27 oz)
MAINTENANCE INTERVAL INITIALTHEREAFTER
EVERYPA G E
10
hours50
hours100
hours100
hours200
hours
ITEM
3
months6
months6
months12
months
Spark plug Inspect, clean, adjust●●●●
4-14
Lubrication points Lubricate●●
4-15
Intermediate housing Lubricate❍
*1●
*2●
*2 4-18
Fuel system Inspect❍❍
4-9
Fuel filter Check, replace❍❍
4-10
Fuel tank Clean❍
4-10
Oil injection system Inspect, clean❍❍
4-11
Trolling speed Adjust●●
4-21
Carburetor throttle shaft Inspect❍❍❍
—
Cooling water passages Flush
●
(after
ever y
use)4-1
Bilge strainer Clean●●●
—
Impeller Inspect●●●
—
Steering cable Inspect●●
4-12
Steering master Inspect❍❍❍
—
QSTS mechanism Inspect●●
4-13
Shift cable and mechanism Inspect, adjust●●
4-12
Throttle cable Inspect, adjust●●
4-12
Choke cable Inspect, adjust●●
4-18
Stern drain plugs Inspect, replace●
3-7
Battery Inspect
●(inspect
fluid level
before
ever y
use)
4-19
Rubber coupling Inspect❍
—
Nuts and bolts Tighten❍❍❍
—
E_F0P71-4.fm Page 8 Tuesday, July 18, 2000 7:17 PM