Ignition Timing; Cylinder Compression - Honda 1988 Z50R Service Manual

Check the valve clearances by Inserting a feeler gauge between
the adjusting screw and valve stem.
VALVE CLEARANCES ;
INTAkE : 0 .05 mm 10.002 inl
EXHAUST ; 0 .05 mm 10.002 inl
Adjust by loosening the lock nut and turning the adjusting screw
until there is a slight drag on the feeler gauge.
Hold the adjusting screw and tighten the lock nut.
TOOLS:
Tapped wrench 8 x 9 mm
Tappet adjusting wrench 8
07708 - 0030100
or equivalent commerdalty
available in U.S.A .
07708 - 0030400
or
07908 - KE 90200
Make sure the tappet hole cap a-rings are in good condilion and
install the caps.
TORQUE : 12 N · m(1. 2 kg,m , 9 ft -Ibl
IGNITION TIMING
NOTE
This Capacitive Discharge Ignition syst em is fac tory pre-set and
cannot be adjusted. Ignition timing inspection procedures are given
t o inspect the function of the CDI components.
Remove the left crankcase cover.
Connect the tachometer and timing light to the engine and Slart
it. The timing is correct If the index mark aligns with the " F" mark.
IGN ITION TIMING : 2 7 ° BlDC
CYLINDER COMPRESSION
Warm up the engine.
Stop the engine and remove the spark plug.
Connect a compression gauge.
Open the choke valve and hold the throttle grip at the full open
posit ion.
Operate the kickstarter pedal several times and check t he gauge
reading.
NOTE
Check tha t t here is no leakage at t he gauge connect ion.
MAINTENANCE
3-7