2007 YAMAHA GP1300R engine overheat

Trouble recovery
73
EJU34560
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.
EJU34580Troubleshooting chart
TROUBLE POSSIBLE CAUSE REMEDY PAGE
Engine does not
start (Starter motor
does not turn over)Engine shut-
off switchClip not in place Install clip
22
Fuse Burned out Replace the fuse and
check wiring78
Battery Run down Recharge 69
Poor terminal con-
nectionsTighten as required
69
Terminal corroded Clean 61
Starter motor Faulty Have serviced by
Yamaha dealer—
Warning sys-
temOverheat mode Cool down engine
29
Engine does not
start (Starter motor
turns over)Throttle lever Squeezed Release 23
Fuel Empty Refill as soon as pos-
sible36
Stale or contaminat-
edHave serviced by
Yamaha dealer66
Fuel tank Water or dirt present Have serviced by
Yamaha dealer66
Spark plug Fouled or defective Clean or replace 67
Spark plug
capNot connected or
looseConnect properly
67
Crankcase Filled with water Crank engine with
plug out until clean79
Fuel injec-
tion systemFuel pump faulty Have serviced by
Yamaha dealer—
Water tem -
perature sen-
sorFailed Have serviced by
Yamaha dealer 29
UF1G74E0.book Page 73 Monday, July 31, 2006 10:10 AM

Trouble recovery
76
EJU34620
Emergency procedures EJU34630Cleaning the jet intake and impeller
If weeds or debris get caught in the jet 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, return to
shore and check the intake and impeller. Al-
ways stop the engine before beaching the wa-
tercraft.
WARNING
EWJ00780
Before attempting to remove weeds or de-
bris from the jet intake or impeller area,
shut the engine off and remove the clip
from the engine shut-off switch. Severe in-
jury or death could result from coming incontact with the rotating parts of the jet
pump.
CAUTION:
ECJ00650
If weeds or debris get caught in the jet in-
take, do not operate the watercraft above
trolling speed until they have been re-
moved.
(1) Turn the watercraft on its side as shown.
UF1G74E0.book Page 76 Monday, July 31, 2006 10:10 AM

Index
2-stroke engine oil .................................... 36
A
Adjusting the Yamaha Adjustable
Sponsons (YAS) ................................... 71
B
Battery ................................................ 40, 61
Battery, checking...................................... 69
Battery, jumping ....................................... 77
Beaching the watercraft ........................... 57
Bilge ......................................................... 39
Boarding alone ......................................... 51
Boarding and starting from a dock ........... 51
Boarding and starting in deep water ........ 51
Boarding and starting in shallow water .... 50
Boarding with a passenger....................... 52
Bow down................................................. 26
Bow eye ................................................... 26
Bow up ..................................................... 26
Builder’s plate............................................. 2
C
Capsized watercraft ................................. 54
Check engine warning indicator ............... 31
Cleaning the watercraft ............................ 62
Cooling water pilot outlets .................. 23, 44
Cruising limitations ................................... 10
D
Docking the watercraft ............................. 57
E
Emergency procedures ............................ 76
Engine break-in ........................................ 45
Engine compartment ................................ 39
Engine overheat warning indicator ........... 29
Engine serial number ................................. 1
Engine shut-off cord ................................. 44
Engine shut-off switch .............................. 22
Engine stop switch ................................... 22
Enjoy your watercraft responsibly ............ 16
Exhaust temperature warning indicator.... 31
F
Filling the fuel tank ................................... 36
Filling the oil tank ..................................... 36
Fire extinguisher....................................... 41
Flushing the cooling system ..................... 60
Front storage compartment ...................... 32Fuel and oil............................................... 35
Fuel and oil systems ................................ 39
Fuel injection system ................................ 71
Fuel level meter ........................................ 28
Fuel level warning indicator ...................... 29
Fuel system .............................................. 61
Fuel system, checking .............................. 66
Fuel tank .................................................. 66
Fuel tank filler cap .................................... 22
Fuses, replacing ....................................... 78
G
Gasohol .................................................... 35
Gasoline ................................................... 35
Getting to know your watercraft ............... 48
Glove compartment .................................. 33
H
Handgrip ................................................... 26
Hazard information ................................... 14
Hood ......................................................... 21
Hour meter/voltmeter ............................... 28
Hull and deck ........................................... 39
Hull Identification Number (HIN)................. 1
I
Identification numbers ................................ 1
Important labels .......................................... 3
J
Jet intake .................................................. 43
Jet intake and impeller, cleaning .............. 76
Jet thrust nozzle angle, checking ............. 66
Jumper cables, connecting ...................... 77
L
Labels, other .............................................. 7
Labels, warning .......................................... 4
Launching the watercraft .......................... 46
Learning to operate your watercraft ......... 48
Leaving the watercraft .............................. 48
Limitations on who may operate the
watercraft ................................................ 9
Lubrication................................................ 61
Lubrication points ..................................... 68
M
Main components, location of .................. 17
Maintenance and adjustments ................. 63
Model information....................................... 2
Multifunction information center ......... 27, 44
UF1G74E0.book Page 1 Monday, July 31, 2006 10:10 AM