I'm having a heck of a time getting my 300u to fire up. I replaced the head gasket after finding water in the oil, and did serious clean-up, but not a rebuild, on the carb.
I've checked all the plugs with a spark tester, as well as outside the cylinder. The coil is brand new, from NAPA. I did a compression test and all 4 cylinders have good compression. First stroke hits 90 psi, which is 6.6 x 13.6. It tops at 120 psi, which I assume is okay.
That left me fuel and timing. The plugs are getting wetted with gas, so I'm pretty sure I'm getting fuel. I even tried a spray can of stating fluid, which I can reliably ignite in the carb by setting timing back far enough, but not in the cylinder.
No matter where I set the timing, I cannot get this thing to fire. Is there something else I'm missing? Spark heat? I've already burned up an old battery trying to start it.
I've checked all the plugs with a spark tester, as well as outside the cylinder. The coil is brand new, from NAPA. I did a compression test and all 4 cylinders have good compression. First stroke hits 90 psi, which is 6.6 x 13.6. It tops at 120 psi, which I assume is okay.
That left me fuel and timing. The plugs are getting wetted with gas, so I'm pretty sure I'm getting fuel. I even tried a spray can of stating fluid, which I can reliably ignite in the carb by setting timing back far enough, but not in the cylinder.
No matter where I set the timing, I cannot get this thing to fire. Is there something else I'm missing? Spark heat? I've already burned up an old battery trying to start it.