check engine YAMAHA GP800R 2021 Owner's Manual

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EJU00595
Troubleshooting
If you have any trouble with your watercraft, use this section to check for the possible
cause.
If you cannot find the cause, or if the procedure for replacement or repair is not described
in this Owner’s/Operator’s Manual, have a Yamaha dealer perform the necessary service.
EJU00596a
Troubleshooting chart
TROUBLE POSSIBLE CAUSE REMEDY PAGE
Engine does not
startStarter motor does not turn over
Engine shut-
off switchClip not in place Install clip
2-8
Fuse Burned out Replace the fuse and
check wiring4-22
Battery Run down Recharge 4-19
Poor terminal connec-
tionsTighten as required
4-19
Terminal corroded Clean 4-5
Starter motor Faulty Have serviced by
Yamaha dealer—
Starter motor turns over
Fuel cock Turned to “OFF” Turn the fuel cock to
“ON”2-7
Fuel Empty Refill as soon as possi-
ble3-3
Stale or contaminated Have serviced by
Yamaha dealer4-10
Fuel tank Water or dirt present Have serviced by
Yamaha dealer4-11
Spark plug Fouled or defective Clean or replace 4-15
Spark plug cap Not connected or loose Connect properly 4-15
Crankcase Filled with water Crank engine with plug
out until clean5-8
Fuel filter Clogged or water
pooledHave serviced by
Yamaha dealer4-11
Choke Choke valve can not be
closed surely by lever
operationHave serviced by
Yamaha dealer —

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Emergency procedures
EJU00598
Cleaning the jet intake and
impeller
If weeds or debris get caught in the intake
or impeller, cavitation can occur, causing jet
thrust to decrease even though engine
speed rises. If this condition is allowed to
continue, the engine will overheat and may
seize. If there is any sign that the jet intake
or impeller is clogged with weeds or debris,
beach the watercraft and check the intake
and impeller. Always stop the engine before
beaching the watercraft.
WARNING
Before attempting to remove weeds or
debris from the jet intake or impeller
areas, shut the engine off and remove
the clip from the engine shut-off switch.
Severe injury or death could result from
contact with the rotating parts of the jet
pump.
1. Turn the watercraft on its side as shown.
CAUTION:
●Place a suitable clean cloth or carpet-
ing underneath the watercraft to pro-
tect it from abrasions and scratches.
●Always turn the watercraft over onto
its port (left) side.
●When turning the watercraft on its
side, support the bow so the handle-
bars cannot be bent or damaged.

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L
Label location .......................................... 1-3
Learning to operate your watercraft ...... 3-19
Leaving the watercraft ........................... 3-18
Limitations on who may operate the
watercraft ................................................ 1-9
Location of main components ................. 2-1
Lubrication............................................... 4-3
Lubrication points .................................. 4-16
M
Maintenance and adjustments ................ 4-7
Multifunction information center ... 2-15, 3-12
O
Oil filter .................................................. 4-12
Oil tank .................................................. 4-12
Oil tank filler cap...................................... 2-6
Oil warning indicator.............................. 2-18
Operating your watercraft...................... 3-19
Operation .............................................. 3-13
Operation of controls and other
functions .................................................. 2-5
Operation requirements ........................ 1-11
Other labels ............................................. 1-8
Owner’s/Operator’s Manual and
tool kit ...................................................... 4-8
P
Periodic maintenance chart..................... 4-9
Post-operation checks........................... 3-31
Pre-operation check list........................... 3-5
Pre-operation check points ..................... 3-6
Pre-operation checks .............................. 3-5
Primary Identification (PRI-ID) number ... 1-1
Q
Quick Shift Trim System (QSTS)
selector.................................................. 2-11
R
Replacing the fuse ................................ 4-22
Reset button .......................................... 2-16
Riding watercraft with a passenger ....... 3-20
Rough water operation .......................... 3-30
S
Safe boating rules ................................. 1-15
Safety information ................................... 1-9Seat ......................................................... 2-5
Specifications ........................................ 4-24
Speedometer......................................... 2-16
Starting and boarding in shallow
water ..................................................... 3-22
Starting from a dock .............................. 3-22
Starting the engine ................................ 3-15
Starting the watercraft ........................... 3-21
Start switch.............................................. 2-9
Steering system ...........................2-10, 3-10
Stopping the engine .............................. 3-18
Stopping the watercraft ......................... 3-29
Storage.................................................... 4-1
Storage compartments .......................... 2-19
Submerged watercraft ............................. 5-8
Switches ................................................ 3-12
T
Tachometer ........................................... 2-16
Throttle .................................................. 3-10
Throttle lever ........................................... 2-9
Towing the watercraft .............................. 5-7
Transporting .......................................... 3-33
Troubleshooting ...................................... 5-1
Troubleshooting chart ............................. 5-1
Turning the watercraft ........................... 3-27
W
Warning labels ........................................ 1-4
Watercraft characteristics ...................... 1-14
Water separator ...................................... 3-7
Y
Yamaha Adjustable Sponson (Y.A.S.) .. 2-20