On the new XC-4 motors that KTM introduced in 2008, it was found the water pump seal was installed backwards from the factory, with the spring oriented in the wrong direction. It seals, but eventually fails. My pump developed a leak shortly after a week of King of the Hammers 2021. x hours and xContinue reading “2008 KTM 530 EXC-R Water Pump Weeping | Seal Replacement”