| Author |
Message |
    
Clarence Drumgoole
Member
Username: rollercoaster
Post Number: 22
Registered: 06-2009
| | Posted on Thursday, July 02, 2009 - 07:54 am: | 
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1993 mercury 40 hp 4 cyl. Not firing, thought for sure it was the switchbox, replaced it, no fire, removed yellow and black wire from box, no fire. Stator and trigger checks good, what next? Still waiting on mechanic!!!This pontoon took a pretty hard bang against the pier the day it stopped running. Cannot find any wiring that may have tripped or caused engine not to fire, but I am supicious this is something very simple causing engine not to fire. Any advice appreciated. |
JB
Senior Member
Username: beckerjs
Post Number: 1753
Registered: 11-2005
| | Posted on Thursday, July 02, 2009 - 09:01 am: |
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when you removed the bl/y wire did you also remove the mercury tilt switch wire if equipped. It prevents spark when the engine is tilted |
Clarence Drumgoole
Member
Username: rollercoaster
Post Number: 23
Registered: 06-2009
| | Posted on Thursday, July 02, 2009 - 12:30 pm: |
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I cannot find a tilt switch. Is there anything else to prevent from starting other than kill wire or tilt switch? There is a run/off toggle switch attached to quicksilver control. |
JB
Senior Member
Username: beckerjs
Post Number: 1754
Registered: 11-2005
| | Posted on Thursday, July 02, 2009 - 01:39 pm: |
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from your picture (previous post) disconect 3rd wire up on right side of switchbox. That should take the ign switch, man overboard switch, and mercury switch out of the system. It should have spark. The mercury switch is part #18 in this pic
http://www.crowleymarine.com/mercury_parts/543/30.cfm
Send me a couple of pics of the switch box close up and the other side of the engine and we'll find the tilt switch. Check for spark with the engine down, smack the case to reset tilt switch when lowered. |
Clarence Drumgoole
Member
Username: rollercoaster
Post Number: 24
Registered: 06-2009
| | Posted on Thursday, July 02, 2009 - 05:40 pm: |
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Here are photos. Tried removing yellow black kill wire, still no fire. Is there a tilt switch?  |
Clarence Drumgoole
Member
Username: rollercoaster
Post Number: 26
Registered: 06-2009
| | Posted on Saturday, July 04, 2009 - 08:40 am: |
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I am going to replace the stator. No ohm reading from blue to blue/white. Where is the best place to purchase: 1993 Mercury 40 hp 4 cyl. stroke? Serial # 0D279379. black stator 398-818535A17. (2) yellow wires (1) blue (1) blue/white (1) red (1) red/white |
'Bandit
Advanced Member
Username: timebandit
Post Number: 767
Registered: 09-2007
| | Posted on Saturday, July 04, 2009 - 11:03 am: |
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9 AMP Stator
Blue and Blue/White R x 1000 5.7-8.0
Red and Red/White R x 1 56-76
Blue and Engine Ground R X 1000 No Reading
Red and Engine Ground R X 1000 No Reading
YEL and YEL R x 1 .5-1.0
16 AMP Stator (398-9710A33 & 398-9710A42)
Blue and Blue/White R x 1000 1000-1400
Red and Red/White R x 1 15-30
Blue and Engine Ground R X 1000 No Reading
Red and Engine Ground R X 1000 No Reading
YEL and YEL R x 1 .10-.50 |
Clarence Drumgoole
Member
Username: rollercoaster
Post Number: 28
Registered: 06-2009
| | Posted on Saturday, July 11, 2009 - 09:41 pm: |
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Changed the stator. Running fine. Thanks, everyone. |
