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Hi , I am a new member and have owned a wheel horse mowers since 1986. I now have 3 of them. I started having a problem with my 518H with a 18HP onan motor . P218G Spec #1710539B SR# H1873262205 It began to just stop running, Then it would start and run again for a while and then stop. It finally quit all together ? I bought this machine new around 1986 . I have always maintained it and have had no problems with it at all till this. I read some where that the best place to start is with the condenser so I ordered a new one and it still did nothing. It has always cranked and gets gas to the carb so the fuel is no issue. I thought maybe the ignition coil might be bad. This is where it gets interesting. I also have another wheel horse 520H Power Plus P220G motor Spec 1710955C SR# C or G 893580749 or 8 I cant make out the first letter or last number well. My 520 was running at the time with no issues. So I looked at the coils and they were a match so I got the bright idea to take the coil out of the 518 and swap them out before just running out and buying a new one as you all know how expensive these parts are. I put the 518 coil in the 520 and the 520 in the 518 . I first tried to start the 520 which was the running machine and it just cranked and would not start. So I figured (GREAT) I have a bad coil? But when I tried to start the 518 it still would not start? ??? So I put the coils back in the machines where they belonged. Now my 520 will not start either?????? So as I'm getting older and cant see well I juts by chance switched them again, after marking them this time. And I still have no spark to either machines? So I figured I would start to try and just get my 518H running. Now I pulled the flywheel off and took the ignition coil mounted behind it as I have read somewhere that this might be the cause????? I am now at a stand still. with both of the ing coils out the ones that the spark plugs go to and the 518 with the flywheel off and don't know where to go from here. Is there some kind of way to test all this stuff and see if its bad or not? I called the only wheel horse dealer in my area which is 60mils one way and they said there is no way to test these parts and just start replacing them? The one coil with the sparkplug wires running to it is $175 bucks and the coil I think its called a pickup coil behind the flywheel is $170 And now I read somewhere that it could be the regulator? I am retired and don't have the kind of bucks to hit and miss all of this. Any help would be gratefully appreciated Jess
