SeaDoo Carbon Seal Failure - How to know if your Carbon Seal might need Replacing

I filmed this a while ago but figured I would upload how to know if your carbon seal needs replacing/servicing. Update the ski was fine but the black powder/dust in the hull of the ski near the drive shaft is a sign of carbon seal wear, in this case it must have been from the previous time it needed replacing Like and Subscribe for more awesome jetsking content :D