An essay by Fastheads, the leader in motocross head and valve train repairs, upgrades and modifications using current advances in technology and machining.

This discussion will cover why it is absolutely necessary to check, adjust and maintain the correct valve clearance, commonly called valve lash We will offer an explanation of what causes this clearance to change and how to avoid the need for constant adjustments. We will cover a few facts on the differences Read more

Disastrous Head and Cam Installation Mistakes

Most cylinder head problems can be avoided by understanding the cause of failures. A head that is properly assembled and machined with valve train components engineered to handle the RPM of a particular engine will seldom fail on its own. Fastheads accurately machines, assembles, and tests every head. If the head fails, it is usually due to one of the scenarios below. We can’t express enough the fact that there is zero room for error during installation and in the continued maintenance of your motocross head. Read more