Reply To: Johnson 1949 HD 25 No Spark

[TiIngot]

I already have downloaded the service manual and printed off the necessary pages.  I found on eBay a complete magneto plate assembly that includes points, magneto condensers flywheel etc. for $14 and waiting for it to arrive before continuing diagnostics. It has the stop switch on it also so I can check its continuity with mine when it comes and compare the two and the capacity readings of the condensers with mine too.

I used my grandson as a guinea pig.  He held the spark plug wire while I turned the magneto with my drill.  No spark showed in the plug test light, but he felt a couple real light tingles in his fingers on one cylinder.

Referencing a comment about the single condenser wires not going to ground but go to each other.  Still confused here and maybe I mis-stated myself.  The two single wires go to an insulated nut on top of the stop switch bolt assembly.  I believe when the magneto is moved to the stop position it contacts the bottom of the stop switch bolt and thus grounds the capacitors to stop the outboard.  However, on mine there appears to be an insulator on the bolt that separates one condenser wire from the other and only one condenser gets grounded when in the stop position.   I don’t want to mess with the ground switch until I have the second magneto plate in hand because I cannot find a good diagram of the insulators within the assembly.

The other problem is eBay, on another item.  I found two OEM 300153 condensers and placed an order from someone named: marinepartswarehouseky.  Two condensers ordered Dec.30.  Confirmation email received Dec 30 also with invoice and eBay order number.  Dec 31 full payment was pulled from my charge card.  However, in eBay the order for the condensers does not appear on my account, entering the order number comes up ‘Order not found” and the seller has not answered my messages for two days now.

 

The saga continues.  I got all winter.

Retired titanium melt shop manager. (Think about me next time you fly in a window seat and look at the engines spinning below the wings!)