Originally posted by: yfz450trx400ex
My buddy just blew his engine too. We were topped in fifth and his seized up. We just found a faulty part though. What happened was the push rod broke, and on the break we found an air bubble in the rod. So hopefully yamaha's gonna cover the bill, or at least part of it! There quoting him $3200 just for the new engine, and he's a dealer employee, so that's at cost! I'd recomend your brother part out his bike and pick up another used one!