2003 YAMAHA GP800R stop start

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Page 48 of 118

YAMAHA GP800R 2003  Owners Manual 3-5
E
EJU01346 
Pre-operation checks 
EJU01347
Pre-operation check list 
Before operating this watercraft, perform the checks in the following check list. See the
accompanying text in this chapter for

Page 55 of 118

YAMAHA GP800R 2003  Owners Manual 3-12
E
EJU01835
Switches 
Check the start switch 1, the engine stop
switch 2, and the engine shut-off switch 3
for proper operation. 
To check these switches, place the water-
craft in the water to pr

Page 59 of 118

YAMAHA GP800R 2003  Owners Manual 3-16
E
2. Turn the fuel cock knob to the “ON” posi-
tion. 
NOTE:@ Before starting the watercraft, after it has
been sitting, remove the fuel tank filler cap
to release any built-up pressure in the

Page 61 of 118

YAMAHA GP800R 2003  Owners Manual 3-18
E
EJU01066 
Stopping the engine  
To stop the engine, release the throttle
lever, and then push the engine stop switch
(red button). 
WARNING@ You need throttle to steer. Shutting off
the engine

Page 79 of 118

YAMAHA GP800R 2003  Owners Manual 4-2
E
1. Put the watercraft on land in a horizontal
position. 
2. Open the flushing hose connector
cap1, and then insert the garden hose
adapter 2 into the flushing hose con-
nector 3 and turn it unti

Page 98 of 118

YAMAHA GP800R 2003  Owners Manual 4-21
E
EJU01109 
Adjusting the carburetor  
The carburetor is a vital part of the engine
and requires very sophisticated adjustment.
Most adjusting should be left to a Yamaha
dealer who has the profes

Page 114 of 118

YAMAHA GP800R 2003  Owners Manual 6-1
E
EJU01125 
Index
2-stroke engine oil ................................... 3-2
A
Adjusting the carburetor ........................ 4-21
Adjusting the trolling speed ................... 4-21
Adjusti

Page 115 of 118

YAMAHA GP800R 2003  Owners Manual 6-2
E
Limitations on who may operate the 
watercraft ................................................ 1-7
Location of main components ................. 2-1
Lubrication.................................
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