Suzuki DF 90 Service Manual page 36

4. Rotate top of cam 90 degree clockwise and remove shim
from cut-away at tappet.
(Two tappets can be adjusted at the same time)
• Do not put your finger between camshaft and tap-
pet while the tappet is being held with the tappet
holder.
• Use a magnet to remove and install shim.
• When installing shim, identification mark on the
shim should face towards tappet side.
5. After removing shim, measure thickness of original shim
and determine correct thickness of shim for proper tappet
clearance as calculated by following formula.
09900-20205 : Micrometer
A = B + (C – 0.25 mm)
A : Correct thickness of shim for proper tappet
clearance (mm)
B : Thickness of original shim (mm)
C : Original tappet clearance (mm)
Thickness
I.D No. I.D No.
(mm)
218 2.18
220 2.20
223 2.23
225 2.25
228 2.28
230 2.30
233 2.33
235 2.35
238 2.38
240 2.40
243 2.43
245 2.45
Thickness
I.D No.
(mm)
248 2.48 278
250 2.50
280
253 2.53 283
255 2.55 285
258 2.58 288
260 2.60 290
263 2.63 293
265 2.65 295
268 2.68 298
270 2.70 300
273 2.73
275 2.75
PERIODIC MAINTENANCE
1 Magnet
2 Shim
Thickness
(mm)
2.78
2.80
250
2.83
2.85
2.88
2.90
2.93
2.95
2.98
3.00
2-11
1
2
1
1
Removed shim
I.D No.
2.50 mm