5.8
9850064 R03 - 2021 650 / 850 Matryx Trail Performance / Crossover Snowmobile Service Manual
© Copyright Polaris Inc.
FUEL INJECTORS / FUEL RAIL / THROTTLE BODY
FUEL RAIL / THROTTLE BODY ASSEMBLY VIEW
q
Fuel Rail Assembly
Do not service fuel hoses or micro dampers. Replace
with new service assembly.
i
Routing Clip
w
Throttle Position Sensor (TPS)
Located on MAG side of Engine
o
Fuel Injector Service Harness
e
Throttle Body Assembly
Service part includes TPS.
a
Fuel Hose- Supply
Supply Quick Connect Fittings (RED)
r
Fuel Rail Mounting Fasteners
First Pass: 5 ft-lbs (6.5 N·m)
Second Pass: 15 ft-lbs (20 N·m)
s
Cable Tie
t
Fuel Injectors
Individual fuel injectors are not serviceable. Replace
both fuel injectors with fuel injector service harness. O-
rings and bushing are serviceable.
d
Fuel Hose- Return
Return Quick Connect Fittings (BLUE)
y
O-Ring
Replace with new when removed.
f
Foam Block
u
Rubber Bushing
Replace with new when removed.
FUEL SYSTEM
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