Sea-doo 2005 4-Tec models User Manual

Section04ENGINEMANAGEMENT(15034-TEC)
Subsection 01 (OVERVIEW)
OPERATING PRINCIPLE
AIR INDUCTION
Throttle Body
It is a 52 mm throttle body mounted on intake
manifold. Fitted on the throttle body, the TPS and
the idle bypass valve allow the ECM to control the
RPM while the throttle plate is closed.
4-TEC Naturally-Aspirated Engine
Air for combustion is drawn directly at the front
of the engine through the throttle body. The air
flow is controlled by a throttle plate and an idle
bypass valve. The air continues through the intake
manifold, which contains the flame arrester and
goes into the cylinder head.
1
2
R1503motr216A
52 MM THROTTLE BODY
1. Idle bypass valve
2. Throttle position sensor (TPS)
4-TEC Supercharged Engine
Air for combustion is drawn at the back of the en-
gine by a mechanical driven supercharger. The
compressed air flows through the throttle body
andiscontrolledbyathrottleplateandanidleby-
pass valve. The air continues through the intake
manifold, which contains the flame arrester and
goes into the cylinder head.
2
1
R1503motr267A
1. Supercharger
2. Throttle body
4-TEC Supercharged Intercooled Engine
Air for combustion is drawn at the back of the en-
gine by a mechanical driven supercharger. The
compressed air flows through the throttle body
and is controlled by a throttle plate and an idle by-
pass valve. The air continues through the intake
manifold, which contains the water/air intercooler
(which cools down the intake air) and goes into the
cylinder head.
1
R1503motr332A
3 2
1. Supercharger
2. Intercooler
3. Throttle body
68 smr2005-011
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Sea-doo 2005 4-Tec models Specifications

General

Displacement	1494 cc
Fuel Type	Unleaded gasoline
Engine Type	4-TEC
Cooling System	Closed-loop cooling
Seating Capacity	3
Width	48 inches (122 cm)
Fuel Capacity	15.9 US gallons