TOHATSU MFS25 Service Manual page 280

O
Troubleshooting
K
Normal?
YES
Check fuel filter for clogging
and dirt, and piping for leak.
Normal?
YES
Check fuel pump.
Normal?
YES
Check vapor separator needle
valve for bend and wear.
Normal?
YES
Check ignition system and
compression pressure.
9-8
NO
Replace fuel rail.
NO
Repair and clean or
replace defective parts.
NO
Replace fuel pump.
NO
Replace needle valve.
25/30 2006