Adjusting the valves on a stihl fs90r 4-mix

[bryanr2]

Does anyone know what the gap thickness is for the valves? I know stihl makes a kit, but if I can figure out the thickness I can use a valve gap tool I already have.

 

[czar800]

Curious myself,

 

[AVB]

.004 IN and EX.

Takes a very narrow width feeler gauge. Something on the order 7/64"

 

[angelo c]

maybe somebody posts a vid of the procedure as well....
seems like witchcraftery to us "NO VALVES" guys.

 

[Lone Wolf]

Does anyone know what the gap thickness is for the valves? I know stihl makes a kit, but if I can figure out the thickness I can use a valve gap tool I already have.

You can cut a reg feeler with a scissors to make it narrow enough to fit in.

 

[Simondo]

Does anyone know what the gap thickness is for the valves? I know stihl makes a kit, but if I can figure out the thickness I can use a valve gap tool I already have.

I suggest you get the repair kit ..hassle free plus the cork gasket and copper washer comes with it. Here there less that £10.00 and its a good idea to scrap the gasket and washer when you do the top end IMO.

 

[Lone Wolf]

I suggest you get the repair kit ..hassle free plus the cork gasket and copper washer comes with it. Here there less that £10.00 and its a good idea to scrap the gasket and washer when you do the top end IMO.

The gasket is important as it holds vacuum.

 

[Simondo]

The gasket is important as it hold vacuum.

Think I may have given a confusing post. I did mean by "scrapping the Gasket and Washer "....put the new ones from the kit on when doing a top end ..dump the old.

 

[Lone Wolf]

h

maybe somebody posts a vid of the procedure as well....
seems like witchcraftery to us "NO VALVES" guys.

Not hard to do put it at TDC and adjust valves.