Engine Oil - Honda NSS250S Manual

MAINTENANCE
Calculate the new shim thickness using the equa-
Sixty-nine different
tion below.
thickness shims are
available from
A = (B – C) + D
1.200 mm
A: New shim thickness
thickness shim to
B: Recorded valve clearance
the thickest 2.900
C: Specified valve clearance
mm thickness shim
D: Old shim thickness
in increments.
• Make sure of the correct shim thickness by mea-
suring the shim using a micrometer.
• Reface the valve seat if carbon deposits result in
a calculated dimension of over 2.900 mm.
Move the rocker arms to the spring side and install
Install the shims in
the shims.
their original
locations.
To accustom the shims, rotate the camshaft several
times by turning the drive pulley face (crankshaft).
Recheck each valve clearance.
Install the removed parts in the reverse order of
removal.

ENGINE OIL

OIL LEVEL CHECK
Start the engine and let it idle for 3 – 5 minutes.
Stop the engine and wait for 2 – 3 minutes.
Hold the scooter in an upright position.
Remove the oil filler cap/dipstick and wipe off the oil
from the dipstick with a clean cloth.
Insert the oil filler cap/dipstick without screwing it
in, remove it and check the oil level.
The level should be between the "UPPER" and
"LOWER" level lines of the oil filler cap/dipstick.
4-10
maxiscooter-club.ru
1.80 mm 1.825 mm 1.85 mm
ROCKER ARMS SHIMS
SIDE SPRINGS SHIMS
OIL FILLER CAP/DIPSTICK
OIL FILLER CAP/DIPSTICK
1.875 mm
UPPER
LOWER