Kevin L.,
Fuel consumption all depends on what you are using it for. If you are mowing with the same size deck, yes a 16 hp will probably use more for the same job. But if you are plowing a garden or throwing snow, the fuel consumption per job may be the same. The 16 hp will use more per hour but you will get the job done quicker. At plow day this spring, my 149 used just as much fuel per hour as my 1650. The 1650 just cruised along while the 149 was working harder. I do not notice the vibration very much on my 1650. But it has new motor mounts in it and I usually run it wide open throttle.
Fuel consumption all depends on what you are using it for. If you are mowing with the same size deck, yes a 16 hp will probably use more for the same job. But if you are plowing a garden or throwing snow, the fuel consumption per job may be the same. The 16 hp will use more per hour but you will get the job done quicker. At plow day this spring, my 149 used just as much fuel per hour as my 1650. The 1650 just cruised along while the 149 was working harder. I do not notice the vibration very much on my 1650. But it has new motor mounts in it and I usually run it wide open throttle.