9) Check Of Float Needle Valve; 10) Starting Carburetor (Choke); 11) Carburetor Reassembly - Rotax 914 F Maintenance Manual

13.1.2.9) Check of float needle valve

See Pic. 70 and 71.
Pic. 70
00026
00029
schlecht
gut
5 bad
good
6

13.1.2.10) Starting carburetor (choke)

Pic. 71
See Pic. 72 and 73.
Remove 4 countersunk screws Q M4x14 and remove the complete choke
housing. Remove hex. nut W and complete fuel choke valve from the
housing. Clean all parts and check.
00034
Pic. 72
Clean all parts and blow all bores and ducts with compressed air. Check all
parts and replace imperfect ones.

13.1.2.11) Carburetor reassembly

Reassembly of the carburetor with new O-rings and gaskets in reversed
sequence.
Modification no.
- 0 -
Drive out peg Q with a pin punch and remove float suspension W
and float needle.
Check float needle E and its seat for wear and the inlet
for contamination.
3
Check fuel inlet for free passage.
Inspect Viton tip R. At visible wear of the beaded edge T
at the sprung pin Y the valve has to be renewed. If the
1
distance becomes less than 0,5 mm (.02 in.) the float level
2
will be affected, leading even to interruption of the fuel
4
flow.
Insert float needle valve into the needle seat. Engage float needle
clip into float bracket, place it in position and fix float bracket with
pin.
Fit float chamber and fix it with plug screw Q and sealing ring 16/
22/1. Apply safety wiring.
5
The choke shaft E has a mark R. This mark has to point
NOTE:
towards cable engagement T or to bore Y.
1
2
4
the pictures are showing
the carburetor for cyl. 2/4
Reference
5
Pic. 73
Main
914 F
00035
6
3
4
Date Page
1997 02 01 129