Originally Posted by Jason Rose
Yes, Walker offers a speed-up kit. They have for years. It ups the speed from about 5 mph to 6 to 6.5 top speed. It dosn't sound like much, but it is.
On my '08 MT machine I actually only needed to replace the pulley with the smaller diameter one, this is NOT the pulley on the engine. It's a 5 minute swap. The spring that was included was not needed as the tension on the belt with the old spring was sufficient. I actually couldn't even stretch the new shorter spring to fit, which is why I didn't use it.
So does the speedup kit void the warranty of the hydros? I have an 08 MT and my left side hydro quit today, still works a little bit but not as strong as the other and it chatters in reverse. Any advice appreciated thanks