Fuel System - TOHATSU MFS25 Service Manual

Check fuel filter for clogging and
dirt, and piping for leak.
Normal?
Measure fuel pressure.
Out of specified
range?
YES
Check fuel regulator of
vapor separator.
Normal?
YES
Check fuel rail for leak and
damage.
Normal?
YES
Check fuel pump.
Normal?
YES
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25/30 2006

Fuel System

YES
NO
Check injector clogging and
resistance.
Check ignition system,
lubrication system
and/or cooling system.
NO
NO
Normal?
YES
NO
NO
NO
Repair or replace
defective parts.
Replace injector.
Replace fuel regulator.
Replace fuel rail.
Replace fuel pump.
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