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Rank: Upper Crust Bronze Star
Groups: Member
Joined: 10/17/2008
Posts: 164
Points: 107
Location: Gainesboro, TN
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Is this just a switch and, if so, is it NO or NC? Is this device connected to the primary of the coil? Anyone have a link where I can find schematic diagram?
Thanks,
Jim
'63, 40' Catamaran
'65, 31' Fisherman
'60, 26' New Horizon
'64, 18'6" Pearson Packet Weekender
SeaCycle(look it up)
Defeated Creek Marina
Cordell Hull Lake, Tennessee
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Rank: Top Rank Aluminum Star
Groups: Member
Joined: 12/7/2007
Posts: 749
Points: 923
Location: Central Florida and the DC area
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What make and model are these outdrives?
"I remember when welfare was for poor people..."
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Rank: Upper Crust Bronze Star
Groups: Member
Joined: 10/17/2008
Posts: 164
Points: 107
Location: Gainesboro, TN
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Just in general, dougrose. I find lots of info on what it is and how to adjust and so forth, but nothing to tell me how it works. Does it just open the DC to the primary of the coil?
Jim
'63, 40' Catamaran
'65, 31' Fisherman
'60, 26' New Horizon
'64, 18'6" Pearson Packet Weekender
SeaCycle(look it up)
Defeated Creek Marina
Cordell Hull Lake, Tennessee
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Rank: Upper Crust Bronze Star
Groups: Member
Joined: 10/17/2008
Posts: 164
Points: 107
Location: Gainesboro, TN
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I've found that it has been done both by interrupting the positive to the top of the coil and by grounding the bottom....mostly the latter.
Jim
'63, 40' Catamaran
'65, 31' Fisherman
'60, 26' New Horizon
'64, 18'6" Pearson Packet Weekender
SeaCycle(look it up)
Defeated Creek Marina
Cordell Hull Lake, Tennessee
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Rank: Top Rank Aluminum Star
Groups: Member
Joined: 12/7/2007
Posts: 749
Points: 923
Location: Central Florida and the DC area
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Most magneto-powered engines (like the 90 hp Johnson on my fishing boat) are turned off by shorting across the points. This is often done using a wire connected to the hot side of the points that is connected to ground to stop the engine. I have a toggle switch for the ignition. It is double-pole double-throw. When it is switched on, the battery is connected to the ignition (purple) so that the start switch can drive the starter solenoid. When it is switched off, the other side of the switch connects the magneto points to ground, stopping the spark. I believe that this is pretty common.
For a point-and-coil ignition like in cars or Marinettes, the engine is normally stopped by simply removing the power to the coil by turning off the ignition switch.
"I remember when welfare was for poor people..."
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