More than likely at some point you seized your motor:175:. Now you need new rings, maybe pistons and the jugs honed. You have little to no compression now thats accounts for the power loss:angry-smiley-014: Your lucky it just didn't lock up tight.1994 Yamaha WaveRunner. My kids ran out of 2 cycle oil and didn't know it. Now the waverunner runs, but it has no power. Is there anything we can do now to help restore some power?