This Yamaha Jetski had a bad engine knock. We opened the engine up and found this. The entire engine including crankshaft and cases are destroyed.
Found Multiple Yamaha Watercraft with With starting issues from a corroded panel in the switch assembly causing a loss of electrical contact.
The majority of the time an oil leak is caused by the oil filter leaking around the seal. In this case we found the block drain and oil pump housing leaking from use and salt water damage.