Hi all, <br />after much wise suggestions from members of this list, I did something profoundly stupid and it worked.<br /><br />I didn't want to strip the foot, and didn't have the right long allen key to do it, so I took the soleniods out, drained the oil completely, filled the grearcase with 18:1 two stroke mix, and let it sit for 30 minutes.<br />Then I cut a socket extension in half, and put an 18mm socked on the top of the drive shaft and hooked the works up to my 12v cordless drill. gave it a good solid spin for 5 minutes to get the petrol through the pump and stuff.<br /><br />Then disconnected the drill, removed the socket and extension and gave the gear foot a **** good shake to loosen any gunk up..<br />Then I drained it, let it dry out for a bit and put the old oil back in.. (which was new anyway)<br /><br />then I got the bottom soleniod and taped it up with 500mph tape so that the bottom sleeve was fixed in the out position, and popped the two soleniods and the plunger back into their home in the top of the foot. (without the cover.)<br /><br />then hooked the cordless back up to the drive shaft and gave it a spin. the pump started working again, and by gently pushing on the top of the soleniods, I could get both neutral and reverse working. (the drive shaft MUST be spinning to test that.)<br /><br />In my case, it worked flawlessly, so I drained that oil, which now has petrol contamination and put fresh stuff in.<br /><br />and I am off and running. (I tested the soleniods prior to doing that. by hooking an earth wire to the body of each soleniod and putting positive to the wire of each.. they should become magnetic and pull the plunger in. (the bottom one should extend the sleeve joined to it as far out as is possible when receiving a charge.) so I have working soleniods, and the pump has fired up.<br /><br />all I have to do is extend the wires (which were rotten where they go through the coverplate next to the water pump) and put it all back together.<br /><br />If it works spinning slowly by a cordless drill, I think its safe to say it will be pumping just fine when spun at much higher rpm by the motor itself.<br /><br />Hope this helps someone in the future.<br /><br />Here is a piccy I knocked up yesterday to show the soleniod layout.<br /><br />
<br /><br />regards<br /><br />Frank<br /><br />PS, I am planning to put all info I can find on this and other johnson stuff online where everyone can be helped by it. so if anyone has any schematics, diagrams or descriptions, email me on frankieh@vianet.net.au and I will add them to the page. 