TOHATSU MFS 8A3 - Page 82

TROUBLESHOOTING82
11
COMPRESSION
&
OIL SYSTEM
  Low compression
Carbon deposits in the combustion chamber
 Incorrect valve clearance
 Low oil pressure/level
ENGINE OIL
SYSTEM
Low oil level
 Use of improper oil
Oil deterioration
Clogged oil strainer
Faulty oil pump
OTHERS
 Incorrect adjustment of throttle link

Insufficient cooling water flow, clogged or defec-
tive pump
Faulty thermostat
  Cavitation or ventilation
 Incorrect propeller selection
 Damaged or bent propeller
  Improper thrust rod position
 Unbalanced load on boat
 Transom too high or too low
Engine failing to start Engine starting but stopping soon Poor idling Poor acceleration Engine speed abnormally high Engine speed abnormally low Boat speed low Overheating of engine Warning lamp ON Power tilt inoperative
Possible cause
MFS6-8-99A3_EUR_EN_141114N.book 82 ページ ２０１４年１２月１３日 土曜日 午後５時４９分