I would think they would have to warranty it since they sold it to you with that motor. The weight difference does not seem that it would make that much difference. Even though they are not selling the 2011 Z-7's with a 200 option is it possible that it could still be rated for a 200? It is still rated for a 200. Nitro just doesn't offer it as an option direct from the factory. You can still get a 200 through your dealer.
