Static Timing; Emergency Timing - Honda CB350 Repair Manual

32 TUNE—UP
that it is. Increase or decrease the other
point gap by the same amount. Both must
be within the given range.
After making any adjustment to the
point gap, the timing will have to be
readjusted.
If the gaps have been changed by
equal amounts, it will only be necessary
to adjust the timing by moving the base
plate.
If proper ignition timing is not pos—
sible, replace both sets of points, since
the fiber heels are probably worn.
STATIC TIMING
1. Remove the alternator cover, points
cover, and the left intake valve cover.
2. Remove the spark plugs and hook
up the tester as described previously.
3. Turn the engine over so that the left
cylinder is on the compression stroke
(the left intake valve will go down and
come up). Turn the engine over slowlyin
the normal direction of rotation (coun—
terclockwise). At theinstant in which the
"LF" mark on the rotor aligns with the
index mark on the stator, the points
should begin to open as indicated by the
reaction ofthe test light or the meter.
4. Ifthe points open before the marks
align, the timing is too advanced. If they
Checking timing: point opening indicated by the
reaction ofthe test light (static timing)
Adjusting ignition timing
open after the "LF" mark passes the
index, the timing is too retarded.
5. If the timing is not correct, set the
"LF" mark so that it is aligned with the
index mark on the compression stroke.
Loosen the two screws which secure the
breaker base plate and rotate the plate
until the light or meter indicates that the
points have just opened. Tighten the
base plate screws and recheck the timing.
6. After completing the timing for the
left cylinder, connect the light or meterto
the points for the right cylinder. Turn the
rotor 180° counterclockwise until the "F"
mark aligns with the index mark; at this
point the right set of points should just
open. If the timing is incorrect, align the
"F" mark with the index mark and in—
crease or decrease the point gap so that
the points just open as indicated by the
light or meter. Refer to steps 6 and 7
under "Dynamic Timing," above.
Tighten the set screws and recheck the
timing and the point gap for both cylin—
ders. Note that both gaps must still be
within specifications.
EMERGENCY TIMING
In the event that no type of timing light
is available and the timing is suspected of
causing trouble, the instant the points