I'll try to keep it short. Took my wolverine to the dealer a couple weeks ago. Today I talked to the dealer today and he said the piston was shot. I have 600 miles, service was done at 200 at the dealer. When it died the oil was barely on the dipstick. Long story short Yamaha gave no problems and is sending the parts under warranty. My only question, which I hope to be able to ask the Yamaha rep, is they told the dealer that riding on the road for only 1 mile is what caused the problem. He said the motor does not have enough oil to run at high speed for long distance. I was going 30-35 for .9 miles. He also said that they will use some oil and to keep it at the top of the oil level. I can't remember the reason said for this. I don't see how it could use any oil in 400 miles. One of the main questions for the rep is why a wolverine cannot run on the road without breaking but my friends '16 Viking rode the same road, at the same time as mine with no problem. He has rode way more road miles than me, I don't like to have my tires on pavement any. They are taking care of the problem and I am not complaining, but it does not sound right that a short road trip can cause this problem. I had not seen the oil level low before this happened.