Section 11 LUBRICATION SYSTEM (2-STROKE)
Subsection 01 (OIL INJECTION SYSTEM)
GENERAL
Whenever repairing the oil injection system, al-
ways verify for water infiltration in reservoir.
Also pressure test the oil injection system.
GTI Models
Clamp and Hose
Verify oil filler neck hose no. 2 for damage.
Always ensure that clamps no. 1 are well posi-
tioned and tightened. Torque clamps to 3.5 N•m
(31 lbf•in).
All Models
Check Valve
Black side of the one-way check valve no. 3 is the
valve outlet. It allows air to get in reservoir and
prevent oil to flow out.
NOTE: For proper check valve installation, refer to
appropriate exploded view given at the beginning
of the section.
Oil Filter
Oil filter no. 4 should be replaced annually.
OIL SYSTEM PRESSURIZATION
WARNING
Whenever oil system components are discon-
nected or replaced, a pressure test must be
done before starting engine. Ensure to veri-
fy oil line ends for damage. Always cut dam-
aged end before reinstallation.
Pressure Test
Proceed as follows:
– Fill up oil reservoir.
– Install a hose pincher to rotary valve shaft oil
supply hose (except 947 DI engines).
– Install a hose pincher to rotary valve shaft oil
return hose (except 947 DI engines).
– Install a hose pincher to oil injection pump sup-
ply hose.
XP DI Model
Install a hose pincher to compressor return line
(lower hose of the vent adapter on top of oil in-
jection tank).
Disconnect oil tank vent line on PTO side throttle
body.
GTI Models
Connect pump gauge tester (P/N 529 021 800) to
oil injection reservoir vent check valve.
XP DI Model
Connect pump gauge tester (P/N 529 021 800) to
disconnected tube at throttle body.
All Models
NOTE: UsethesamepumpincludedintheEN-
GINE LEAK TESTER KIT (P/N 295 500 352).
1
F01G0IA
TYPICAL
1. Connect pump to check valve
– Pressurize oil system to 21 kPa (3 PSI).
All Models
– If pressure is not maintained, locate leak and
repair/replace component leaking. To ease leak
search spray a solution of soapy water on com-
ponents, bubbles will indicate leak location.
XP DI Model
Verify check valve inside vent adapter if pressure
does not hold. Also ensure air can enter through
check valve in the opposite direction.
All Models
NOTE: The system must maintain a pressure of
21 kPa (3 PSI) for at least 10 minutes. Never pres-
surize over 21 kPa (3 PSI).
CAUTION: If any leak is found, do not start t
he
engine and wipe off any oil leakage.
Disconnect pump gauge tester and remove hose
pinchers. On XP DI model, reconnect line at throt-
tle body.
smr2004-Complete Line Up 531
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