TOHATSU 2 Stroke 3.5B, Owner'S Manual

Page: 49 / 54

49
TROUBLESHOOTING
ENOM00241-0
If you encounter a problem, consult the check list below to determine the cause and to
take the proper action.
An authorized dealer will always be happy to provide any assistance and information.
Engine failing to start En
gine starting but stopping soon
Poor idling Poor acceleration Engine speed abnormally high Engine speed abnormally low Boat speed low Overheating of engine
Possible cause
FUEL SYSTEM
 
Empty fuel tank
     
Deformed or damaged fuel hose
      
Closed air vent on fuel tank
      
Clogged fuel filter, fuel pump, or carburetor
    
Use of improper engine oil
     
Use of improper gasoline
 
Excessive supply of fuel
      
Poor carburetor adjustment
ELECTRICAL SYSTEM
      
Spark plug other than specified
     
Dirt, soot, etc. on spark plug
     
No spark or weak spark

Short circuit of engine stop switch
    
Ignition timing incorrect

Lock plate not fitted to stop switch

Disconnection of wire or loose ground connection
MFS2.5-3.5B_EN.book Page 49 Wednesday, December 5, 2012 10:36 AM