![background image](http://html1.mh-extra.com/html/stihl/fc-75/fc-75_user-manual_1378585012.webp)
- Remove carburetor,
•
Fit gasket in front of spacer
flange.
- Set piston to top dead centre
(TDC) (can be seen through the
inlet port).
- Check that spark plug is seated
securely.
•
Fit test flange (1) 1128 850 4200.
•
Fit and tighten nuts (2).
- Remove outer screw on muffler.
- Back off inner screws half-way.
•
Slide sealing plate (1)
0000 855 8106 between gasket
and cylinder exhaust port and
lightly retighten inner screws.
Note: The sealing plate must fill
the space between the mounting
screws completely.
- Carry out preparatory steps,
•
Slide pressure hose of tester
1106 850 2905 over nipple on
test flange.
•
Close vent screw (1) on rubber
bulb.
- Pump air into crankcase with
rubber bulb until pressure gauge
indicates a pressure of 0.5 bar.
The crankcase is airtight if this
pressure remains constant for at
least 20 seconds.
392RA017 VA
1
1
392RA019 VA
1
1
2
2
392RA018 VA
392RA020 VA
143RA046 V
A
1
12