the same basic concept can happen on a magneto.if the impulse quits it wont fire hot enough to start.simply because engine is not turning fast enough.to check impulse first just simply see if you can hear it.( it disengages when engine is running).Next check fire on each cyl.skipping cyls and firing on just one or two is a sure sign of a bad cap,rotor,dirty or misadjusted points(they HAVE to be set right, not close, in magneto and they HAVE to be clean). fire weak with a mag is quite often the condenser.Its possible you jumped time,easy enough to check by pulling no one plug.cranking engine over until you feel compression on hole and then seeing where dist or mag rotor is pointing.Hope this helps.
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Today's Featured Article - Tuning-Up Your Tractor: Plugs & Compression Testing - by Curtis Von Fange. The engine seems to run rough. In the exhaust you can hear an occasion 'poofing' sound like somethings not firing on all cylinders. Under loaded conditions the tractor seems to lack power and it belches black smoke out of the exhaust. For some reason it just doesn't want to start up without cranking and cranking the starter. All these conditions can be signals that your unit is in need of a tune up. Ok, so what is involved in a tune up? You say, swap plugs and file the points....now tha
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