after YAMAHA SUPERJET 2002 Owner's Manual

4-9
E
EJU01355
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.
*1: Grease capacity: 20.0–22.0 cm3 (0.68–0.74 oz)
*2: Grease capacity: 3.0–5.0 cm3 (0.10–0.17 oz)
(
) This mark indicates maintenance that you may do yourself.
(
❍) This mark indicates work to be done by a Yamaha dealer.
MAINTENANCE INTERVAL INITIALTHEREAF-
TER EVERYPA G E
10
hours50
hours100
hours 100
hours 200
hours
ITEM
3
months6
months6
months12
months
Spark plug Inspect, clean, adjust




4-13
Lubrication points Lubricate


4-14
Intermediate housing Lubricate❍
*1

*2

*2 4-16
Fuel system Inspect❍❍
4-10
Fuel filter Check, replace❍❍
4-11
Fuel tank Clean❍
4-11
Carburetor setting Inspect, adjust❍❍❍
4-19
Trolling speed Adjust


4-19
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 pivot Inspect❍❍❍
—
Steering friction Inspect



4-20
Throttle cable Inspect, adjust


4-12
Choke cable Inspect, adjust


4-16
Battery Inspect

(Inspect
fluid level
before
ever y
use)4-17
Rubber coupling Inspect❍
—
Nuts and bolts Tighten❍❍❍
—
E_F1N-70.book Page 9 Wednesday, July 18, 2001 3:28 PM

4-11
E
EJU01098
Fuel filter
This watercraft is equipped with a one-
piece, disposable fuel filter 1. The fuel filter
should be replaced once a year or after
every 200 hours of operation, or if water is
found in the filter. Have a Yamaha dealer
replace the fuel filter if necessary.
WARNING@ Do not try to replace the fuel filter your-
self. An incorrectly installed filter can
leak gasoline, which could lead to fire or
explosion. If necessary, have a Yamaha
dealer replace the fuel filter.
@
EJU01099
Fuel tank
Check the fuel tank 1 for leakage or
water in the tank. If water is found in the fuel
system or if the fuel tank needs to be
cleaned have a Yamaha dealer service the
watercraft.
E_F1N-70.book Page 11 Wednesday, July 18, 2001 3:28 PM

4-19
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 professional knowledge
and experience to perform it. However, the
operator may adjust the trolling speed as
part of the usual maintenance routine.
CAUTION:@ The carburetor was set at the Yamaha
factory after many tests. If the settings
are disturbed by someone who does not
have the necessary technical knowledge,
poor engine performance and damage
may result.
@
EJU01303
Adjusting the trolling speed
1. Put the watercraft in the water.
2. Start the engine and warm it up for 1 or
2 minutes. Using a diagnostic tachome-
ter, adjust the engine speed to specifica-
tion.
3. Turn the throttle stop screw 1 clockwise
to increase engine speed if necessary.
Turn it counterclockwise to decrease
engine speed if necessary.
Trolling speed: 1,250–1,350 r/min
E_F1N-70.book Page 19 Wednesday, July 18, 2001 3:28 PM