Has it been sitting long or outside?
If that is the case, I would try this first.Pull the spark plugs, put about a tsp.of oil in each cylinder and try to turn it over by hand via the rear wheel and or starter.
If that is the case, I would try this first.Pull the spark plugs, put about a tsp.of oil in each cylinder and try to turn it over by hand via the rear wheel and or starter.