Section 09 COOLING SYSTEM
Subsection 01 (CIRCUIT, COMPONENTS AND CARE)
787 RFI Engines
The 787 RFI engines features a heat exchanger
system. This system allows water coming out of
the cylinder head to circulate through a magneto
heat exchanger and the crankcase heat exchang-
er.
F15E09A
3
2
1
4
1. Quick connect hose fitting
2. Engine heat exchanger water supply hose
3. Engine drain hose from cylinder heat exchanger
4. Water outlet hose to exhaust outlet
The engine heat exchanger supply hose has a
quick connect hose fitting to facilitate engine
draining.
F02E0BA
1
2
1. Heat exchanger water supply hose
2. Quick connect hose fitting
The water coming out of the engine heat exchang-
er is evacuated at the exhaust outlet for noise re-
duction.
DI Engines
The water supply is provided by a pressurized area
in the jet pump between the impeller and venturi.
The water is entering the engine by the water inlet
fitting at the cylinder head.
F08E05A
1
1. Water supply hose
Water from inlet hose also supplies the water
regulator on muffler and magneto cover and
crankcase cover.
Water then is expulsed through the pump support
drain.
Water circulates through the one piece cylinder
head which features improved combustion cham-
ber and better spark plug cooling.
F06D21A
Water enters cylinder block water jackets and is
directed to the water jackets of the exhaust man-
ifold and tuned pipe head through passages locat-
ed above and below exhaust ports.
474
smr2004-Complete Line Up
www.SeaDooManuals.net
Summary of Contents for 2006 GTI
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