MAINTENANCE WORK ON CHASSIS AND ENGINE
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ENGLISH
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Changing the seat height
The saddle can easily be raised by 25 mm (1 in). This lets you adjust the
height as your child grows.
Figures A and B show the fork and shock absorber positions for a low seat
position. The fork tubes extend approx. 17 mm (0.7 in) (H) above the upper
fork stabilizer. The shock absorber is attached to the upper hole in the frame.
Tighten the clamp screws on the fork stabilizers to 25 Nm (top) and
10 Nm (bottom), the screw on the shock absorber to 45 Nm.
Figures A and B: low seat position
Figures C and D: high seat position
Figures C and D show the fork and shock absorber positions for a high seat
position.Fork tubes are plane with top of upper fork stabilizer. (Screw cap
(Aluminium) protrudes from the top of the upper fork stabilizer)
The shock absorber is attached to the lower hole in the frame. Tighten the
clamp screws on the fork stabilizers to 25 Nm (top) and 10 Nm (bottom), the
screw on the shock absorber to 45 Nm.
The fork tubes may not be lowered any further than as described above, oth-
erwise the clamping on the upper fork stabilizer will no longer be adequate.
Adjusting the throttle cable *
There must always be a 3 to 5 mm (0.1 to 0.2 in) play in the throttle cable.
To check this, move back the protective cover
[1]
on the throttle grip. You
must be able to lift the outer covering of the cable 3-5 mm from the adjust-
ing screw
[2]
, until resistance is felt.
To adjust, loosen the counter nut
[3]
and turn the adjusting screw accord-
ingly. Finally tighten counter nut and slide the protective cover back on.
Adjusting the idle speed Dell’Orto PHVA 14 DS (50 SX Junior) *
The idle speed can be adjusted with screw
[4]
.
The idle speed is increased by turning clockwise.
The idle speed is reduced by turning counter-clockwise.
Adjusting the idle speed Dell’Orto PHBG 19 BS (50 SX) *
The idle speed can be adjusted with screw
[5]
.
The idle speed is increased by turning clockwise.
The idle speed is reduced by turning counter-clockwise.
3-5 mm
3
1
2
4
5
C
D
H
B
A
