Dirt and X2/X4 Sheaves
Before you buy this sheave combo you should know there are a minor number of people as compared to the number of owners of this sheave in different parts of the country that have had some dirt and hanging up issues. While the number is minor we need to address the possiblity you might have issues and will know what to do about it. Unfortunately it took us a long time to address this due to the number of people having this issue took so long to build up to enough people to recognize it as a true problem.
First we have no plans to change anything on our end on the product as there are simply too many running around problem free.
For whatever reason, whether the intake on the clutch or the design of the clutch cover on a X2/X4 not enough air is moving inside the sheave to keep the dirt blown out.
So if you are one of the unlucky ones having this issue your first line of defense is a air nozzle that can be bought off ebay to blow out the sheave after a day of dusty riding without removing the cover. This solution goes a long way to prevent it and is a much better option than having grease still in your clutch and having the dirt sticking to that, grease might extend the maintenance period but would require you to take it apart, clean that nasty mess out and go again.
Second line of defense would be scrap our weights if this happens to your vehicle and run the Dr Pulley weights with Yamaha grease, no one wants you to have to that but if you do not want to blow it out and you are having this issue then this would be the final straw to keep the Hunterworks sheave all the the belt manipulation benefits.
Why not sell the Dr pulley weights and tell to run grease from the get go? Because grease is nasty and most people run miles and miles troublefree as many as 10,000 miles on one persons vehicle and just today saw another at 3600 troublefree and this is the norm.
Everyone one of us take our vehicles and change it to meet our needs and do not expect the manufacturer of the vehicle to make changes to the vehicle to fix a minor number of people.
We also are offering our sheave without weights for those who would like to buy it without and get your own weights.