valves.....well there are a couple of ways to do it. If the engine is fairly new then about every 2-3 gallons you should check them and set them.

The clearances you be between about 0.04mm and 0.1mm or to convert to inches its 0.0015" and 0.004" The 1.5 thousands is tough to measure even 1 thousandth is tough.

You can buy a feeler gauge at the Auto Parts start. Its needs to go down to a 0.001" These are cheap about $2 or so.

I will work on a picture and diagram to show you what to do. There are a couple of methods, but using the feeler guage is the easiest for a new guy to use.

I do it will my calibrated finger but this is not good for somebody that doesn't know for sure whats going on. The idea is there has to be a gap....this ensures the valve does close. If it stays open because there is no gap then the piston could hit the valve or the valve stays open a little and doesn't seal.

The idea on these engines is to make the gap about as small as possible and still have a gap.

Its an easy process but I need to work on some diagram and photos to to show you what to do.

Another tool kit is good to get costs a little much for what it is...but I use it...


OS Part#72200060

I looked at the photo and it didn't show the little screw driver, but my kit I bought many years ago had the little screw driver in it....

I'll work on something this afternoon and get back to you on it.


Troy Newman
Team YS