Re: Timing procedure on 40 hp
After another week of working on this pig I think I finally figured out what the problems were. There were several witch made diagnosing very difficult. When I first tested, I put spark plug testers on and ran, the bottom calendar was loosing spark intermittingly . The first test I tried was to disconnect the cut out switch which was connected to this cyl. no difference. So I went right to the coils, one was weak, so I swapped with the other to see if the other cyl. would cut out and show me it was the coil, no difference. at that point I changed the condensers, points, wires and everything else on the armature plate, it seemed to run a little better but same cyl. would go on and off at higher rpm and eventually would go back to same cond. I tried swapping flywheel, no difference, I then swapped out The armature and put different (tested) coils, wires another new set of points and everything else on the plate ( I also bought F_R's timing tool and set everything to perfection. NO DIFFERENCE, I put the gun to my head and put my finger on the trigger and thought before I do this let me start from the beginning one more $%#*@ time, I pulled the wire off the cut out switch again, and this time it ran perfect???? I put the wire back and the bottom cyl. would cut out when I gave it a little gas. So I came to the conclusion that the cut out switch and the points on the same cyl. crapped out at the same time. That would explain why when I pulled the wire on the cut out switch the first time it continued to stumble due to dirty points. One of the guys said they almost never fail. Well they do fail. The other problem I had with the throttle roller not contacting the cam, turned out the butterfly valve in the back of the carb was slightly out of position and not closing tightly , holding the roller away. and finally the problem I had with the float contacting the side of the bowl and holding the needle and seat open was due to the fact that the holes drilled into the carb that holds the pin that the float pivots on were crooked, so no matter what float I put in it would malfunction. I'm not sure what I did to deserve all this at once, but I hope its over for a while. I write this for all the guys who tried to help as a way to say thanks and maybe if some of these issues happen to you, you can check the things that broke on me. Thanks all , Ronnie