Rotax 503 UL - Main torquing specifications

18) Main
torquing specifications:
Nm in.lb.
1) Cra
kcase screws .M8 ............................-....-.--....-....22
195
2) Gar <case base
ruts
(or
sctervs).........,.. M10 .....................................,.,....38
335
3) Oankcase
base studs .............................M10 ..........................-.................
12 105
4)
Cylinder
studs... ...M8.....,...........................,............
7 60
5)
Cylinder
head
nuts.................................M8 ....................................,.........22
195
6)
Allenscrewsforstatorplate..................M5.........-.-.-..--.......................7
60
7)
Taptite screws for
pickup
......................M5 ...............................-..............
6
55
8)
Magncto
housing nut
...-..-.....-.-..-.-..M22 x 1.,5 -....--..-.........................90
800
9)
Fan
housing
allen screws
.......................M6
..............................................
10
90
10) Fan
nut ............... ..MI6 x
1,5 ...................................60
530
I l) Allen screws
for
starting
pulley......,.....,M8
...........................
..--....-..-.......22
195
12) Eex.
s6ews for
rcwfuid
starter............... M6 ...........--.-.-.-.-...................10
90
13)
Hex. sclews fo! cylinder cowling .......... M8 ....,.....,.,................,,,...........,..
14 125
14) Intake
manifold
sqews...................,,.....M8 .,...,................,....-.....--...........22
195
15)
Intake manifold
screws
..........................M6
...........-..--..--.....................10
90
16) Spa*
plugs
14
(cold
engine).................M14x1.5.....................................n
240
17) H€x.screw
for
ignition coil
plate
...........M6
..............'...............................
5
45
18)LocknutsforeIectronicbox.,...,,....,,.....M6.........................,,...................8
70
l9) Hex.
scTews for
starter
gear
...................M8
.......,.-..--..-.-...,,..,,.,.,,........22
195
20) Lock
nus for
clectric starter..................M8 .......................... -...................22
t95
21) Hex.
screw for
&ive
gear
.-..---.-.---.12-20
UNF................................60
530
22) Sftd
for
gear
box
.M8
..............................................
8 70
23) Hex,
nuts
/
screws
for
gearbox
..............M8
.,.......-..-....-..-.......,..,,...,,,...24
210
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