Ferris Industries 5901011 用户手册

Priming the fuel system fills the fuel filters and 
removes any air bubbles from the fuel system.  This 
must be performed before the first use, after any fuel 
filter maintenance or if the fuel system is run dry.

 1.  Using a 1/2” wrench, loosen the vent screw 

(A, Figure 2) on the water separator 2-3 
revolutions.

 2.  Unscrew the priming hand pump (B) located on 

top of the water separator.  Operate the hand 
pump up and down until fuel that is free of air 
flows from the vent.

 3.  Tighten the vent screw to 4.5 ft/lbs (6 N.m.).  

DO NOT OVER TIGHTEN!

 1.  Using the appropriate size wrench, loosen the 

vent screw (C) on the engine fuel filter 2-3 
revolutions.

 2.  Operate the hand pump up and down until fuel 

that is free of air flows from the vent.

 3.  Tighten the vent screw to 4.5 ft/lbs (6 N.m.).  

DO NOT OVER TIGHTEN!

 1.  Using a 13mm wrench, loosen the vent screw (D) 

on the fuel inlet 2-3 revolutions.

 2.  Operate the hand pump up and down until fuel 

that is free of air flows from the vent.

 3.  Tighten the vent screw to 4.5 ft/lbs (6 N.m.).  

DO NOT OVER TIGHTEN!

 4.  Tighten the priming fuel pump finger tight.

 5.  Start the engine.  (See STARTING THE ENGINE).  

If the engine will not start, further priming is 
necessary.  If the engine starts but misfires 
or continues to emit smoke, further priming is 
necessary.

 6.  If the engine starts but runs rough, continue to 

run the engine at low idle until the engine runs 
smoothly.

Operation

Not 

for  

Reproduction