anyway to test a pulse pack 72 100hp johnson

catfish0

Recruit
Joined
Jul 18, 2002
Messages
5
runs great, dies at who knows when, at any rpm, looses all fire to plugs. after a bit it will start and run fine again. thank you for any help!!
 

Joe Reeves

Supreme Mariner
Joined
Feb 24, 2002
Messages
13,262
Re: anyway to test a pulse pack 72 100hp johnson

Catfish.... Do the following:<br /><br />(Battery Capacitance Dischage Powerpack Test)<br /><br />Purchase a small 12v bulb at your local automotive parts store (the 12v bulb is to look like a flashlight bulb, not a headlight bulb). Solder two wires to that bulb, one to the side of the bulb (ground), and the other to the positive point. <br /><br />Remove the spark plugs. With the key in the on position, make sure that you have 12v going to the pack at the terminal block (purple wire). Now, connect the ground wire from the bulb to any powerhead ground. Connect the wire from the positive point of that bulb to the powerpack wire that is connected to the coil wire on the terminal board (blue wire). <br /><br />Crank the engine and observe that bulb closely (CLOSELY!). If that bulb glows even the slightest bit, the powerpack is okay. It may be a very dim glow... just so it glows! If it doesn't glow, the pack has failed. <br /><br />Keep in mind, that type powerpack (Battery Capacitance Discharge) demands a top notch battery of at least 70 amp hours. Any less will, in time, cause powerpack failure.<br />------------<br />Should you need and have a problem finding one, I have one of the improved universal powerpacks left in my remaining stock. $235.00 includes shipping etc. ReevesJ32@aol.com
 
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