I rebuilt this engine about a year ago. It has been on a stand till 2 months ago when I put it in the frame. I started it and let it run 15-30 minutes several times while it was on the stand.
The fuel is fresh and it is in a brand new Spectra fuel tank.
The suddenness is what has me baffled. It ran great and 12 hours later it will not even start. It does turn over but will not run. The starter got a tremendous workout today!!
Jackie