Section 09
COOLING SYSTEM
Subsection 02
(CIRCUIT, COMPONENTS AND CARE)
09-02-12
SMR2003-029_09_02A.FM
787 RFI Engines
The
787 RFI engines
features a heat exchanger sys-
tem. This system allows water coming out of the
cylinder head to circulate through a magneto heat
exchanger and the crankcase heat exchanger.
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.
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 flow is controlled by a reducer located
between the jet pump support and the jet pump
on the inlet side. The reducer is blue on the DI
models.
The water is entering the engine by the water inlet
fitting at the cylinder head.
1. Water supply hose
Water from inlet hose also supplies the water reg-
ulator on muffler and magneto cover and crank-
case 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.
F15E09A
3
2
1
4
F02E0BA
1
2
F08E05A
1
F06D21A
www.SeaDooManuals.net
Summary of Contents for 2003 GTI LE RFI
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Page 767: ...NOTE www SeaDooManuals net ...
Page 768: ...NOTE www SeaDooManuals net ...
Page 769: ...F00Z0D 2003 GTI MODEL WARNING www SeaDooManuals net ...
Page 770: ...F00Z0C 2003 GTI LE MODEL WARNING www SeaDooManuals net ...
Page 771: ...F00Z0E 2003 GTI LE RFI MODEL WARNING www SeaDooManuals net ...
Page 772: ...F00Z0J 2003 RX DI MODEL WARNING www SeaDooManuals net ...
Page 773: ...F00Z0I 2003 GTX DI MODEL WARNING www SeaDooManuals net ...
Page 774: ...F00Z0K 2003 XP DI MODEL WARNING www SeaDooManuals net ...
Page 775: ...F00Z0F 2003 GTX 4 TEC MODEL WARNING www SeaDooManuals net ...
Page 776: ...F00Z0G 2003 GTX 4 TEC MODEL WITH AUXILIARY DESS MODULE WARNING www SeaDooManuals net ...
Page 777: ...F00Z0B 2003 GTX 4 TEC AND GTX 4 TEC SUPERCHARGED MODELS WARNING www SeaDooManuals net ...
Page 779: ...www SeaDooManuals net ...