Installing The Main Silencer; Changing The Glass Fiber Yarn Filling Of The Main Silencer (All Sx-F Standard Models, Xc-F Us) - KTM 250 SX-F 2017 Owner's Manual

11 SERVICE WORK ON THE CHASSIS
11.30

Installing the main silencer

11.31 Changing the glass fiber yarn filling of the main silencer
Warning
Danger of burns The exhaust system gets very hot when the vehicle is driven.
–
Allow the exhaust system to cool down before performing any work on the vehicle.
Info
Over time, the fibers of the glass fiber yarn escape and the damper "burns" out.
Not only is the noise level higher, the performance characteristic changes.
(All SX‑F standard models, XC‑F US)
–
Position the main silencer.
–
Mount screws
–
Attach spring
Spring hook (50305017000)
–
Tighten screws
Guideline
Remaining screws, chassis
S01238-11
(SX‑F Factory Edition)
–
Position the main silencer with the connection sleeve.
–
Mount screws
–
Attach spring
Spring hook (50305017000)
–
Tighten screws
Guideline
Remaining screws, chassis
S01626-10
Preparatory work
–
Remove the main silencer. (
Main work
–
Remove all the screws on the main silencer.
–
Take off silencer cap
–
Take off outer tube
–
Pull glass fiber yarn filling
–
Clean the parts that need to be reinstalled and check for damage.
–
Mount new glass fiber yarn filling
–
Slide O-ring
–
Insert O-ring
–
Mount and tighten all of the screws.
Guideline
Screws on the main silencer
311691-10
Finishing work
–
Install the main silencer. (
1 but do not tighten yet.
2
.
1
.
1
but do not tighten yet.
2
.
1
.
(All SX‑F standard models, XC‑F US)
p. 54)
1 2
and O-ring
3 4
and O-ring .
5 off of inner tube
5 on inner tube
4 3
and outer tube over glass fiber yarn filling
2 1
and silencer cap into outer tube
p. 55)
M6 10 Nm
(7.4 lbf ft)
M6 10 Nm
(7.4 lbf ft)
.
6 .
6 .
5
.
3
.
M5 7 Nm (5.2 lbf ft)
55