Yamaha 250B, Owner'S Manual, Page: 200 / 220

5-9
GB
EMU00438
ENGINE FAILS TO OPERATE
If the engine speed becomes erratic or the
engine stops unexpectedly, or if the
engine does not start, the following emer-
gency circuit procedure may allow you to
return to port for repairs.
Before using this procedure, be sure to
check the “TROUBLESHOOTING” section.
Eliminate causes such as low fuel or over-
heating before using this procedure.
w
When the emergency circuit is used, the
engine may run faster than normal at
idling and low speeds. Be prepared
slightly increased speeds when operating
at low throttle settings.
c C
8
This emergency circuit should only be
used long enough to return to port for
repairs. Do not continue to operate the
engine without getting repairs.
8
Do not operate the engine over 3,500
r/min while using the emergency cir-
cuit because ignition timing and fuel
injection settings will not adjust for
higher speed operation. Engine dam-
age can result from higher engine
speed.
If an engine fails to start, use the follow-
ing procedure.
1)
Adjust the trim angle so that the
engine is vertical or trimmed in.
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