Mainship 40 Trawler Single & Twin • Engines and Transmissions
11.7
g
Troubleshooting
g
g
Problem
Possible Cause
Solution
Engine not starting
No fuel reaching engine
Fuel tank vent blocked. Clean hose
and fitting to remove material. Make
sure hose is not pinched
Fuel line obstructed. Check fuel
lines. Make sure line is not pinched
Clogged engine fuel filter. Refer to
engine manual for instructions on
cleaning filter
Fuel supply valve closed at tank.
Open valve
Improper starting procedures
Review starting procedures in engine
manual
Contaminated fuel
Inspect for water or other contami-
nants in fuel. If contaminated, drain
tank and flush with fresh fuel
Engine starter not cranking
Discharged battery
Recharge or replace battery
Neutral safety switch misaligned
Move throttle lever up and down
slightly over the détente while mov-
ing ignition switch. (Have dealer
check switch as soon as possible)
Corroded battery terminals
Clean battery terminals
Loose battery terminals
Tighten connections
Bad starter switch
Test switch continuity. Replace
switch if required. See your dealer
for service
Replace switch
Hydrolock
See instructions in this Section under
“Hydro-Lock”. See your dealer imme-
diately
Jammed “starter drive.”
Loosen starter motor, then free stuck
gear
Engine speed erratic
Pinched or clogged fuel lines
Replace line or remove obstruction
See your dealer for service
Contaminated fuel
Drain fuel tank and lines. Flush with
clean fuel and replace fuel filters.
See your dealer for service
Engine running rough
Defective fuel pump
Have your dealer check pump
Idle speed too low
Check idle speed and adjust as
needed
Faulty ignition system components
See your dealer for service
Clogged fuel filter
Clean or replace filter
Pinched fuel lines
Straighten lines
Summary of Contents for 40 Trawler Single
Page 8: ...Mainship 40 Trawler Single Twin Operator s Manual H This Page Intentionally Left Blank ...
Page 14: ...Notes Mainship 40 Trawler Single Twin Introduction 1 6 ...
Page 18: ...2 4 Mainship 40 Trawler Single Twin Documents and Forms Fig 2 1 ...
Page 23: ...2 9 Mainship 40 Trawler Single Twin Documents and Forms Notes ...
Page 24: ...2 10 Mainship 40 Trawler Single Twin Documents and Forms This Page Intentionally Left Blank ...
Page 33: ...3 9 Mainship 40 Trawler Single Twin Warranty SAMPLE ...
Page 35: ...3 11 Mainship 40 Trawler Single Twin Warranty SAMPLE ...
Page 36: ...Notes 3 12 Mainship 40 Trawler SIngle Twin Warranty ...
Page 37: ...V1 011508 P N 1034082 40 Trawler Single Twin Single Twin Boating Safety Safety Chapter 4 ...
Page 54: ...Mainship 40 Trawler Single Twin Boating Safety 4 18 Notes ...
Page 66: ...Notes Mainship 40 Trawler Single Twin Fuel System 5 12 ...
Page 76: ...Notes Mainship 40 Trawler Single Twin Underwater Gear 6 10 ...
Page 92: ...Mainship 40 Trawler Single Twin DC Electric Systems 7 16 Notes ...
Page 102: ...Mainship 40 Trawler Single Twin AC Electric Systems 8 10 This Page Intentionally Left Blank ...
Page 110: ...Mainship 40 Trawler Single Twin Water Systems 9 8 Notes ...
Page 146: ...Mainship 40 Trawler Single Twin Maintenance 13 14 This Page Intentionally Left Blank ...
Page 151: ......
Page 152: ......
Page 153: ......
Page 154: ......
Page 155: ......
Page 156: ......
Page 157: ......
Page 158: ......
Page 159: ......
Page 160: ......
Page 161: ......
Page 162: ......
Page 163: ......
Page 164: ......
Page 165: ......
Page 166: ......
Page 167: ......
Page 168: ......
Page 169: ......
Page 170: ......