Engine Will Not Start; Power Unit - TOHATSU MFS 9.9 Owner's Manual

Before working on the engine, check that hull, rigging and engine installation are normal, and then
battery is fully charged. For mechanical troubleshooting, refer to relevant troubleshooting section in
this chapter. For checking and servicing the machine, refer to service procedures described in this
manual to perform the works safely.

2. Power Unit

State 1

Engine will not start.

Check that gear shift is in
neutral (N).
Neutral (N)?
YES
Check operations of starter
motor or recoil starter.
Does the unit
operate?
NO
(Electric Starter Model)
Check tightness and condition
of battery cables, fuses starter,
and ground cables.
Normal?
YES
Check operations of starter
solenoid. (Electric Start models)
Normal?
YES
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4st 9.9/15/20 2008
Starting System
NO
(Recoil Start Model)
Check recoil starter or
starter lock cable.
NO
Shift into neutral (N).
YES
Check ignition system
and/or fuel system.
NO
NO
Repair or replace
defective parts.
NO
Replace starter solenoid.
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