Fuel Leakage Check Procedure; Fuel Hose Connection - BRP Johnson 4HP Service Manual

FUEL LEAKAGE CHECK PROCEDURE

After performing any fuel system service, always be sure that
there is not fuel leakage by checking as follows.
1. Squeeze the fuel primer bulb until you feel resistance.
2. Once pressurized, check all connections and compo-
nents for any signs of leakage.

FUEL HOSE CONNECTION

Note that a fuel hose connection varies with each type of
pipe. Be sure to connect and clamp each hose correctly by
referring to the figure.
•
For the type "A" (short barbed end) pipe, the hose must
completely cover the pipe.
•
For the type "B" (bent end) pipe, the hose must cover the
straight part of the pipe by 20 – 30 mm (0.8 – 1.2 in).
•
For the type "C" pipe, the hose must fit up against the
flanged part of the pipe.
•
For the type "D" pipe, the hose must cover the pipe by 20 –
30 mm (0.8 – 1.2 in).
FUEL SYSTEM
Clamp (Clip)
"A"
Hose
3 - 7 mm
(0.1 - 0.3 in)
"B"
3 - 7 mm
(0.1 - 0.3 in)
"C"
3 - 7 mm (0.1 - 0.3 in)
"D"
20 - 30 mm
(0.8 - 1.2 in)
3 - 7 mm
(0.1 - 0.3 in)
FUEL LINE
Joint Pipe
20 - 30 mm
(0.8 - 1.2 in)
4-3