The excessive grease in your primary is probably from yamaha. I couldn't believe how much grease the factory uses in these things.
My clutchs also have a bit of a whinny noise at around 10km/h and always made a low knocking noise that's sounds like a bad con rod. It's always done since before and after a full service to both clutchs. I have two coworkers with grizzlys that reported simular noises to mine. It is my understanding that these are normal ultramatic noises.
My clutchs also have a bit of a whinny noise at around 10km/h and always made a low knocking noise that's sounds like a bad con rod. It's always done since before and after a full service to both clutchs. I have two coworkers with grizzlys that reported simular noises to mine. It is my understanding that these are normal ultramatic noises.