One side of the rocker is nonadjustable, and the margin is self-adjusted by the hydraulic lifter. A single rocker controls the opening and closing of both series of valves. However, hearing a ticking noise when the engine isn’t hot may point to improper valve clearance adjustment.Įach cylinder in the engine has two intake valves and two exhaust valves. The cylinder heads’ air-cooled nature means some ticking is inevitable, especially as engine temperature increases and parts start expanding. Ticking noise from the cylinder head area Let’s take a look at a few of the sounds in question: i. Some are actually signs that something is out of place or in need of replacement. That said, not all the noises on these bikes are normal. This makes that users experience some weird noises during either idling or riding. Unlike their liquid-cooled counterparts, air-cooled engines do not have a water-filled jacket that dampens engine noise a wide-opened, finned v-twin motor lets its roar loose.
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