Fuel System - Husqvarna 42 Workshop Manual

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10

Fuel System

Checking the Fuel Tank Ventilation
Empty fuel from tank into a suitable container.
Remove cylinder cover. Remove fuel hose from
carburetor. Install and tighten fuel tank cap.
Connect pressure gauge P/N 5025038-01 to
fuel hose. Pump gauge to 50 kPa (7 psi).
Pressure should drop to 20 kPa (2 psi) within
60 seconds.
NOTE:
depending on type of two stroke oil used in
fuel.
Replacement of the Vent
Remove fuel tank cap completely. Using a
curved needle nose pliers, grip vent tube and
push vent out through passage.
Using a suitable punch, push new fuel tank
vent into place. Some vents are threaded and
require a screwdriver.
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Rate at which pressure drops can vary