Section 07 ENGINE MANAGEMENT (DI)
Subsection 02 (COMPONENT INSPECTION AND ADJUSTMENT)
234
1
F12R03A
1. Pressure gauge (P/N 529 035 709)
2. Adapter for air compressor (P/N 529 035 712)
3. T-adapter (P/N 529 035 710)
4. Pressure relief valve (P/N 529 035 711)
CAUTION: Make sure to install pressure relief
valve to allow excess pressure to escape and
to point valve arrow as shown above. Note the
arrow on the valve. Otherwise, air compressor
components might be damaged.
Install pressure gauge to air compressor.
NOTE: To prevent fuel from being injected and
from going out the disconnected hose, use the
drowned engine mode to crank engine. While en-
gine is stopped, depress and HOLD the throttle
lever at full throttle position to crank engine.
Ensure the battery is in good condition to get the
normal cranking speed.
Crank engine and observe air pressure.
NOTE: A 1 second beep every second indicates
the drowned mode is active.
WARNING
Be careful with pressure relief valve outlet as
compressed air may flow out from it.
MINIMUM AIR PRESSURE
(at cranking)
621±14kPa(90±2PSI)
If pressure is within limits, air compressor is work-
ing adequately.
If pressure is below limits, ensure inlet hose is not
obstructed, bent or kinked. Otherwise, repair the
air compressor.
Remove pressure gauge and reinstall air compres-
sor hose.
REPAIR
Top End
Remove retaining screws.
Lift cover then remove compressor head.
Clean all parts in a solvent and visually inspect for
corrosion damage.
Check reed valve plates for cracks, deformation,
dirt or other defects. The reed plates must lie
completely flat against the reed valve body.
Inspect plane surfaces for warpage.
If reed valve is found defective, it is suggested
to replace it then to temporarily reassemble the
compressor to then make a pressure test. If it
fails, check bottom end.
When changing reed valve, ensure to position ring
plate opening so that 2 holes align inside the open-
ing. Holes must not be obstructed by the opening
edges.
12
F12R04A
1. Reed valve opening
2. Rotate opening to align 2 holes inside without
obstructing the holes
Ensure to position O-ring, around top of cylinder
sleeve.
smr2004-Complete Line Up 343
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