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Message |
    
Kevin Hernly
New member
Username: kcolts69
Post Number: 1
Registered: 07-2009
| | Posted on Saturday, July 11, 2009 - 04:24 pm: | 
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I have a evinrude 115 hp engine that ran fine last week at the lake. Tried to start at home today and would not start. Pulled spark plugs and appears there is no spark. |
Joe Reeves
Senior Member
Username: joereeves
Post Number: 7655
Registered: 02-2001
| | Posted on Saturday, July 11, 2009 - 10:19 pm: |
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Check compression. What are the readings. Appears to be no spark? We need to know for sure.
Disconnect large RED electrical plug at engine, then crank engine by using small jumper from battery cable terminal of solenoid to small 3/8" nut terminal of that solenoid to engage it.
Spark must be checked to jump a 7/16" gap. Do not waste your time checking spark by using the spark plug gap which is misleading. Spark testers available at automotive stores or........
(Spark Tester - Home Made)
(J. Reeves)
A spark tester can be made with a piece of 1x4 or 1x6, drive a few finishing nails through it, then bend the pointed ends at a right angle. You can then adjust the gap by simply twisting the nail(s). Solder a spark plug wire to one which you can connect to the spark plug boots, and a ground wire of some kind to the other to connect to the powerhead somewhere. Use small alligator clips on the other end of the wires to connect to ground and to the spark plug connector that exists inside of the rubber plug boot.
Using the above, one could easily build a spark tester whereas they could connect 2, 4, 6, or 8 cylinders all at one time. The ground nail being straight up, the others being bent, aimed at the ground nail. A typical 4 cylinder tester follows:
..........X1..........X2
.................X..(grd)
..........X3..........X4
Thousands of parts in my remaining stock. Not able to list them all. Let me know what you need and I'll look it up for you. Visit my eBay store at:
http://stores.ebay.com/Evinrude-Johnson-Outboard-Parts-etc?refid=store |
Mike Tavary
Advanced Member
Username: tboltmike
Post Number: 159
Registered: 10-2006
| | Posted on Sunday, July 12, 2009 - 07:02 pm: |
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Check the Kill Switch Cap. Happened to me once. It can get bumped off and you may not notice it. |
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