Honda CB900F Service Manual page 58

MAINTENANCE
Rem ove the tim ing ho le cap and O-ring.
Turn the crankshaft clockwise, align the " T " mark on
the ig nition pu lse ge nerato r rotor w ith the in dex mark
on the rig ht cr ankcase cover.
The tim ing marks (" IN" and " EX" ) on the cam sprock-
ets must be flush w ith the cylinder head surface and
facing o utwa rd as shown.
If the timing marks on the cam sp roc ket faci ng
inward, t urn the cra nkshaft cloc kw ise one full turn
(360') and realign t he ti mi ng ma rks with t he cylinder
head surface so they are fac ing outward.
Record the ctesr-
ance for each
valve for refer-
ence in shim
selection if adjust -
ment is required
3-8
Insert the feeler gauge between the va lve lifter and
the cam lobe.
Check the va lve cle arance for the No .1 and NO.3 cyl in-
der intake valves using a feeler gauge .
VA LVE CLEARANC E:
IN: 0.16 ~ 0.03 mm {0.006 e 0.001 inl
NO .3 INTAK E VALVES