Taking off the grate and replacing is easy...IF all 5 bolts will come out. I could not get one of the bolts out as it just turns. The nut, can you believe this is under the engine, they tell me you need to raise the engine to get a wrench on it. This was the only bad design of the speedster. Question is how to clean debri from the impeller, they tell be to go from the back and remove the venturi and reverse gate to expose it..