Quote:
Originally Posted by SlendyMayne
Still new to the Moto world. Where's the valve lash?
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Valve lash is a term to describe the gap between the rocker arm and the valve. This gap exists to account for thermal expansion of the various metal parts of the valve train, and allow the valve the ability to fully seat and seal the combustion chamber. Otherwise, it causes a number of running and rideability issues. So there is no "lash" that can be pointed to. Lash is something you set.
Given that you have a SOHC engine, you should have two caps on the valve cover, one front and one rear with big hex heads on them. These caps come off to give you access to the lash adjusters.
In order to properly set valve lash on an engine there are a couple of criteria that must be met.
1. The engine should be stone cold - preferably sat overnight or many hours.
2. The engine must be set to Top Dead Center on the compression stroke. This means that both valves are in a "loose" condition that will allow you to make proper adjustments. If you are not at TDC on the compression stroke, then you are effectively wasting time.