Troubleshooting - Black Max BM903000 Operator's Manual

PRObLEM
Engine will not start.
Engine lacks power.
AC receptacle does not work.
Generator makes a "spark knock" or
"pinging" noise.
If problem persists after trying the above solutions, contact your nearest authorized service center for assistance.
The following symptoms may indicate problems that will affect the emissions level of the unit:
 Hard starting or stalling after starting
 Rough idle
 Misfiring or backfiring under load
 Afterburning (backfiring)
 Black exhaust smoke or high fuel consumption
If you encounter any of these symptoms, have the unit inspected and repaired by the nearest authorized service center.

TROUbLESHOOTING

POSSIbLE CAUSE
Engine switch is OFF.
No fuel.
Stale gasoline or water in gasoline.
Lubricant level is low.
Fuel valve is OFF.
Spark plug faulty, fouled, or improperly
gapped.
Choke is in RUN position.
Engine stored without treating or
draining gasoline, or refueled with bad
gasoline.
Dirty fuel filter.
Air filter element clogged.
Engine stored without treating or
draining gasoline, or refueled with bad
gasoline.
Circuit breaker is OFF.
Item plugged in is defective.
An occasional light "knocking" or "ping-
ing" under heavy load is not a cause
for concern. However, if the knocking
or pinging occurs under normal load
at a steady engine speed, the problem
may be with the brand of gasoline be-
ing used.
Page 17 — English
SOLUTION
Turn engine switch to ON.
Fill fuel tank.
Drain entire system and refill with fresh
fuel.
Check engine lubrincant level and fill,
if necessary.
Turn fuel valve ON.
Replace spark plug.
Move choke to START position.
Drain fuel and carburetor. Refuel with
fresh gasoline.
Replace fuel filter or contact authorized
service center
Check air filter element. Clean or replace
as needed.
Drain fuel and carburetor. Refuel with
fresh gasoline. If problem continues,
contact your nearest authorized service
center.
Turn ON the AC circuit breaker.
Try a different item.
Switch to a different brand of gasoline,
making sure that the octane rating
is 86 or higher. If problem continues,
contact your nearest authorized service
center.