Section 06
FUEL SYSTEM
Subsection 04
(CARBURETOR)
06-04-4
LMR2000_060_06_04A.FM
Tighten low speed
no. 1
screw until a slight resis-
tance is felt. Then, back it off to the specification
as per following chart.
NOTE:
Turning screw clockwise leans mixture and
turning screw counterclockwise enriches mixture.
Start and warm up engine.
CAUTION:
If boat is out of water, engine must
be cooled using the flush kit.
Check that engine idles and runs smoothly. Make
sure engine reacts quickly to throttle lever depres-
sion. If necessary, readjust low speed screw
(± 1/4 turn).
NOTE:
On twin carburetor engines, both low
speed screws must be adjusted exactly the same
way. Never adjust screws more than 1/4 turn at a
time.
High Speed Screw
The high speed screw
no. 3
is sealed with a plas-
tic cap that allows an adjustment of 1/4 turn.
NOTE:
Turning screw 1/4 turn counterclockwise
enriches mixture and turning screw clockwise
leans mixture.
CAUTION:
Do not attempt to adjust high speed
screw by removing plastic cap.
1. High speed screw (PTO side shown)
Idle Speed Screw
Turning screw
no. 2
clockwise increases engine
idle speed and turning screw counterclockwise
decreases engine idle speed.
1. Idle speed screw
NOTE:
On the twin carburetor engine, there is
only one idle speed screw.
Connect an induction-type tachometer (P/N 529
014 500) on spark plug cable of magneto side to
measure engine speed.
NOTE:
To adjust idle speed, ensure flame arrester
and air intake silencer are installed.
Start engine and bring to normal operating temper-
ature.
CAUTION:
If boat is out of water, engine must
be cooled using the flush kit.
Turn screw so that engine idles at 1400 RPM in
water or 3000 RPM out of water.
Fuel Accelerator Pump
Ensure throttle cable is properly adjusted and idle
speed is set at 1400 RPM in water.
With the engine not running, loosen adjustment
screw lock nut. Use a feeler gauge between lever
tab and pump plunger. Turn adjustment screw to
achieve approximately 0.05 - 0.15 mm (.002 - .005 in)
gap. Tighten adjustment screw lock nut.
BOAT MODEL
LOW SPEED SCREW
Sportster LE
1-1/2 turns
F06F0PB
1
F06F0KA
1
Summary of Contents for Sea-Doo SPORTSTER LE
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