Joyner JNSZ800DL, Owner'S Manual, Page: 91 / 94

Fig .52
2. Check firing advance angle by starting firstly gasoline engine under idle(900
±
50r/min) .Use timing lamp to light the flywheel viewing-hole of gearbox by
connecting the lamp with the high voltage resistant wire of the first cylinder,
shown as in Fig .53 .The timing mark on the flywheel 7
°
should be aligned with
the timing finger of the bracket, the tolerance should be
±
1
°
,or otherwise
you should adjust it.
Fig. 53
3. Adjust the firing advance angle by loosing the fastening bolt of distributor
⑥
shown as in
Fig. 53 .Rotate the distributor clockwise to enlarge the advance angle or vise verse. After
finishing the adjustment, fasten distributor and check it with timing lamp. The firing advance
angle should be within 7
°±
1
°
.
C.Main trouble and solutions of gasoline engine:
42