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  1. #1

    1996 SPX won't start up after reinstalling engine

    Good morning all,

    A few months back I posted that my SPX developed a nasty oil leak on the engine crankcase. I ended up yanking the engine out and re-sealing the bottom end and putting the engine back in. I am just to the point of trying to fire her up but it won't start. It cranks and cranks and cranks until eventually I'll get a backfire big enough to blow the exhaust right out of its coupler. I can't seem to figure it out. I have added a little gas to the tops of the cylinders, no change. I have verified spark with spark plug testers. I left the carbs intact during this whole process so they shouldn't have any issues. When the engine was out, I never removed the spinning rotary from its place so that timing should be fine. Any chance anyone could think of something else I may have missed? I'll take whatever suggestions I can get. Oh, and compression is good also, 145-150psi for both cylinders. Thanks in advance.

  2. #2
    Still no luck since the original post. I'm hoping someone else can chime in with a possible thing I missed?

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