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Troubleshooting chart
W·Wifr!i _________ _
Never check the
fuel
system while
smoking or
in
the vicinity of an
open flame.
1.
Fuel
Check
if
there
is
fuel in
the
fuel
tank
2. Compression
Remove the
fuel
pipe
Turn the
fuel
cock to "OFF"
Turn the fuel
cock to
"RES"
-
Water or
dirt
m
i
xed
in
fuel
Check
fuel flow
Restart
engine
Supply fuel
1--------
There is
compression
Compress
ion normal
Clean filter
element
and
fuel tank
No fuel
Fuel
cock clogged
Clean fuel
cock
Use electric starter
to
see if there is
compression
1----~
Ask
Yamaha dealer
to
inspect
3. Ignition
Remove plug .and
check electrode
4
.
Battery
Use electric
starter
Wipe clean
with
dry
cloth
Attach plug cap
and
ground to chassis
Battery good
Use the el
ec-
tric starter
Check fluid,
recharge
,
check connections
-88-
Spark good
No spark
Ignition system normal
Adjust plug gap or
replace plug
Ask Yamaha dealer to inspect
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