I just finished restoring a 1948 B. Tractor came out beautiful, only problem is it won't start to leave the garage! I think I've taken it about about 3 - 4 times now and can't figure it out. I'm getting a nice blue spark at the plugs and fuel coming out of the exhaust pipe after some cranking, but not even a pop. I checked the timing multiple times, all the timing marks are lining up and the magneto is snapping over at TDC. The tractor has a remanufactured carburetor, newly machined head with all new valves, block has been machined and got freshened up with new pistons and rings. I'm honestly baffled, so I'm hoping some of you guys on here may have some advice. Thank you in advance!