If everything is optimum the 1812 should start as well or better than the 1282. Start with the carburetor, and make sure the choke is adjusted to close all of the way when the knob is pulled. Then make sure it's running well warm by adjusting the mixture. Then make sure the spark plugs are gapped properly and not worn. If all of this checks out, you might have a weak magneto, or low compression.
__________________
 
582, 682, 782, 782D, 1282, 1050, 1210 x 2, 1711, and 1811
|