Yamaha EDL7000SE Owner's Manual page 42

35 PERIODIC SERVICE
‹
Air bleeding the fuel system
WARNING
To avoid personal injury:
8 Do not bleed a hot engine as
this could cause fuel to spill
onto a hot exhaust manifold
creating a danger of fire.
Air bleeding of the fuel system is required if;
8 After the fuel filter and pipes have been detached
and refitted;
8 After the fuel tank has become empty; or
8 Before the engine is to be used after long storage.
[PROCEDURE]
1. Fill the fuel tank to the fullest extent. Open the fuel
filter cock.
2. Loosen air vent plug of the fuel filter a few turns.
3. Screw back the plug when bubbles do not come up
any more.
4. Open the air vent plug on top of the fuel injection
pump.
5. Retighten the plug when bubbles do not come up
any more.
(1) Fuel filter cock
(2) Air vent plug
(3) Fuel filter pot
(A) "OPEN"
(B) "CLOSE"
‹
Checking the fuel pipes
WARNING
To avoid personal injury:
8 Check or replace the fuel pipes
after stopping
Broken fuel pipes can cause
fires.
Check the fuel pipes every 50 hours of operation.
When if;
1. If the clamp band is loose, apply oil to the screw of
the band, and tighten the band securely.
2. If the fuel pipes made of rubber became worn out
replace them and clamp bands every two years.
3. If the fuel pipes and clamp bands are found worn
or damaged before two years' time, replace or
repair them at once.
4. After replacement of the pipes and bands, air-
bleed the fuel system.
NOTICE
8 When the fuel pipes are not
installed, plug them at both
ends with clean cloth or paper
to prevent dirt from entering.
Dirt in the pipes can cause fuel
injection pump malfunction.
(1) Clamp band
(2) Fuel pipe
the engine.