My belt needs adjusted in secondary my belt width is good but top of belt is even with top of sheave. Manual says add spacer, where do I get the spacer? Is it somewhere? Do I go buy one? What do I buy? And I assume I have to remove secondary to do this. My main question is why do I need to adjust a new yamaha belt? Or am I just crazy? New sled 500 miles rpm only gets to 8650. top speed only 80 to 85. Some say this is normal For a nytro this new, I'm just not sure.