Troubleshooting - Shindaiwa 300 Service Manual

Section
5 Ignition Systems
Troubleshooting
Troubleshooting
300, 300S, 357, 360 and 377
Figures 5.22 , 5.23,
Is t e s
~iLch
on? Is the switch ,vorkln g
5.24)
prope Iy? (The sWitch should pass
cu rren! in lhe OFF posilion only)
2. Test high voltage output ith a
gap tes ter or kV meter.
Check spark plu for proper
size an d condi tion.
3. Clean an d ti ghten all ground
con nections. Inspec t for
broken or damaged wirin
or con nec tors.
4. Reset magneto air gap to the
spec lficalions lis ted on page 49 .
5. Chec k the Ill ustrated Parls Lis for
corre ct par s and in stallatio s. Are
requi ed insulators prop rly installed
under lhe exciter eoil?
6. Test coil secondary for open or shorte
wi ndings. Perlo mance-test ssembly
with kV meter ar fly heel simulatorf
possib le .
7. Inspec for sheare fl heel key (aHects
timin g only).
Figure
5 22
Tro ubleshoo/ln One Prece Syslems
488, 577 and 757
1. Is th e sWitch on? Is lhe s ",itel, 'Norking properly?
(The switch shoulo pass current in the OFF
position on ly)
2. Test high volta ge outpu
WI
ha
ga p tester or V meter
Check spar plu g for
proper size and
cond ltlon.
3. Clean and tighten all
groun d connec tiors
Inspec t for broken r
damaged wiring or
con ec tors.
4. Resel m gneto air gap lo the
specifications listec on page 49.
5. Check the
1 11
strated Parts List
for correct parts an d inslallalions.
Mismatched com ponents may ,
01
IG N·OS
perfo rm
10
sp c ific alions!
6. Test CO I output wlth a kV meter or flywheel
Sir
ulator.
7. Test sp rk coil lor open
0 1
shorte winding s. Performance­
test assembly i h kV meter
8. Inspect lor sheared ¡Iy heel key (affect tlming only).
Figure 5.23 Troubleshootmg Two Ptece Syslems
t ·
Sh.nda,w II1C . 19 5
58