O.S. Engines 91HZ-R 3D - Manual (Page 11)

20
ABOUT THE PLUMBING
Carry out plumbing referring to a sketch on page 21.
Connect silicone tubing cut into approx. 10cm to the
nipple on the cover plate.
Then, connect the check valve supplied with the
engine as sketched (Be aware of the direction.) It is
suggested to install a stopper as shown in the sketch.
When refueling, remove this stopper to release
pressure in the fuel tank.
Connect the fuel line to the nipple on the regulator.
Be sure to equip a commercially available in-line filter
to avoid dust entering the regulator.
Note:
Since the muffler pressurized fuel feed is not used
with this engine, plug a nipple on the muffler or
replace it with a bolt.
21
Fuel tank
Fuel Stopper
(commercially available)
Fuel Filter
(commercially available)
Check valve
Check valve
Fuel Stopper (commercially available)
T Nipple
Remove when refuelling
(commercially
available)
Be aware of direction
Grooved part should
face the fuel tank.
Silicone tubing
approx.10cm
(commercially
available)
JAPAN