7-FRONT FORK COMPONENT
47
CHK
ADJ
NO.
PART NO.
PART NAME
QTY
CAUTION
1
1251300-045000 ZT250
－
S upper connection decoration nut(chroming)
1
100N·m
2
1251500-050000 ZT250
－
S upper connection gasket φ18.5×φ39×1
1
3
1250205-023000 GB70.1 inner hexagonal M8X35 (environmental color)
2
22
～
24N.m
4
1134100-007000 ZT250
－
S Adjusting nut locking washer
1
5
1251300-046093 Direction column adjusting screw nut M24X1
2
6
1244100-015000 ZT250
－
S Adjusting nut rubber pad
1
7
1224100-005000 ZT250
－
S steering stem dust cap (Up)
1
8
1130900-024000 ZT250
－
S upper bead top
1
9
1130900-022000 ZT250
－
S upper connect iron ball
2
10
1130900-026000 ZT250
－
S upper steel bowl
2
PROCEDURE:
●
When the front fork is slightly swaying or when the direction handle is swung
Check if the pressure of the front tire is the recommended air pressure at room temperature: 250 kPa.
If it is lower than the recommended air pressure, the front tire pressure should be inflated to 350 kPa first, and then
deflated to 250kPa. If it is otherwise set the front wheel and turn to inspect the tire tread, if it is worn or deformed, the front
tire needs to be replaced. If no, continue to operate.
●
Check steering device
Set up the front wheel and shake the lower part of the fork by hand to check if the steering shaft is loose or if the left and
right rotations are not flexible.
Adjust the adjustment nut:
Remove the trim nut (1) with a 30# ring spanner, remove the spacer (2), and remove the bolt (3) with 6# inner hexagon
socket. The direction of the upper board assembly wrapped with a clean cloth and then placed to prevent scratches. Remove
the lock washer (4); remove the upper adjustment nut (5) with a hook wrench and remove the pad (6).
If the steering resistance is too large, turn the lower adjustment nut (5) counterclockwise. If the brake is slightly swaying or
swings, rotate clockwise. The torque is about 14N.m. It is appropriate.
When reassembling, the top adjusting nut only needs to be screwed to align with the bottom nut groove, so as not to over-
tighten to avoid excessive deformation of the pad (6); the torque requirement of the decorative nut (1) is 100 Nm.
●
Steering bearing
If the above operation still can not rule out excessive steering resistance or stuck as follows:
Remove the adjusting nut (5), remove the upper dust cover (7), shaft ring (8), and connecting ball (9), remove the
directional column & front shock absorber & front wheel assembly, and check the shaft ring and the connecting steel ball
for abnormal wear or rust . At the same time, inspect the seat ring (10) in the standpipe in front of the frame for abnormal
wear or rust. The newly replaced conjoined steel ball should be evenly greased, pay attention to the amount of grease.
CAUTION:
●
The motorcycle should be fixed before operation. The material should be protected during the disassembly to prevent
scratches.
●
If the steering is adjusted too tightly, the steering force will be greater. If the steering is too loose, the front of the
motorcycle will be slightly shaken during braking, and adjustments must be made according to the actual needs of the
driver.
Fig.4 FRONT FORK
COMPONENT
Steering adjustment
