Starting problem with PV 15

I like the idea of an inline spark tester. I am using a well vented auxillary tank since my tank is currently off the tractor. If anything, it seems like there is plenty of fuel around the carb. I did forget to mention that I have the throttle/govenor disconnected as it seems to be frozen. Does the governor have anything to do with the timing? I also need to resolve some clutch issues before I start towing. I may take you up on your cranking offer. Thanks, Gary

I had the same issue on a PV-15. It turns out the plugs were fouled, even though they looked okay. I would try some new plugs before you tear into anything.

I would start with pulling the mag, have it cleaned, oiled and tested, its common for the coil insulation to break down and condensors to go bad after years of setting ,I would change the condenser as they are hard to test and cheap to replace.

If it's an impulse mag and it's firing around TDC when you flip it over, that would be about right. The impulse should lock out and the timing advance once it starts.

To set one, turn the mag backwards so the impulse coupling doesn't engage, set it on it's mark, set the engine marks and then install the mag. Turning it forward, in the normal direction, the impulse cocks and trips just where you want to stop it to install on the engine.

C'mon, guys-read what the man said...25-35 psi compression? it's gonna be damned hard to start...:deadhorse:

I know your right!!

I know your right!!

While the low compression might make it hard to start, apparently it does start but doesn't keep running. The first place I'd look at would be the exhaust system. .a blockage there could/would allow the engine to start but as back pressure built up, the engine would die. Pine cones/critter nests in the exhaust manifold/muffler could be in there. .I've seen that happen a few times.

Another place to check might be for something loose (like maybe a lost rag) in the intake system between the air cleaner (or even critter nests in the air cleaner itself) and carb that could block the air flow. If it's spewing black smoke as it dies, maybe that could be the problem? Just a few thoughts. . .