Fuel Injector; Removal - BOMBARDIER Johnson 90 Service Manual

FUEL SYSTEM
FUEL
INJECTOR
FUEL INJECTOR
lnspection
1. Using sound scope or equivalent, check operating sound
of fuel injector when engine is runníng or cranking. lnjec­
tor operating sound cycle should vary according to
engine speed. lf no sound or an unusual sound is heard,
check injector circuit (wire or connector) or injector.
2. Disconnect lead wire connector from fuel injector.
3. Connect digital tester between terminals of injector and
measure resistance.
1®1
Digital tester
~ Tester range:
Q
(Resistance)
Fuel injector resistance: 11.0 - 16.5
n
lf out of specification, replace fuel injector.
4. Connect lead wire connector to fuel injector securely.
Removal
1. Relieve fuel pressure according to procedure described
on page 5-3.
2. Loosen clamp and place a large cloth over end of fuel
feed hose. Slowly pull fuel feed hose from fuel delivery
pipe. Drain any excess fuel in hose into a small container.
3. Disconnect tour fuel injector connectors.
4. Remove bolts and low fuel filter bracket.
5. Remove two bolts and fuel delivery pipe (with fuel injec­
tors).
IACAUTION
¡
A small amount of fuel may be released when the fuel
injector is removed from delivery pipe. Place a shop
cloth under fuel injector before removal to absorb any
fuel released. Dispose of fuel soaked cloth in appropri­
ate container.
6. Remove each injector from delivery pipe.
5-12