Getting your dirt bike crank rebuild done right
Deciding when to tackle a dirt bike crank rebuild is usually the moment you realize that weird knocking sound in your engine isn't just a loose heat shield. It's a gut-wrenching realization because it means the very heart of your motor—the crankshaft—has finally given up the ghost. Whether you're riding a screaming 125 two-stroke or a high-tech 450 four-stroke, the crank is what turns that explosive power into forward motion. When it starts to go, you can't just ignore it, or you'll end up with a much more expensive hole in your engine cases. ...