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I usually go bonkers on these things . I think however on this model of saw if a person just made a thinner gasket or used sealant you could raise the comp enough you really wouldn't have to fiddle with the porting if you aren't sure of how to do it . With sealant I imagine you could lower the...

McMaster -Carr page 2594 .Unmounted silicon carbide rubberized points . I use item 477A61 and mandrel 477A34 .Medium grit . You get 25 in a pakage for 12-13 bucks and 3-4 bucks for the mandrel . Not bad considering mounted points are 3-5 bucks a pop or more . These do so well I seldom use...

I didn't drop the intake just did some widdening inside the cylinder ,about standard stuff just a lot smaller . The transfers still were around 30-31 blow down .I did just a little around the base and just a tad in the uppers ,not much . For it's tiny size this saw engine has large transfers...

After fiddling with this tiny thing I now see why so many so called engine porters are reluctant to rework these little gems .They are tiny ,everything is in miniature .Just a few thou on something this small can make a big difference in the final outcome . The picture shows the size of the...

Now had I not screwed up with my measurements the ports would still be pretty close with the pop up piston and cut base .Because I miscalculated I had to raise the ex port to set it to factory specs of 96 degrees after top dead center in order to maintain the speed these things run at . The...

The rest of the thread I don't expect that everybody can do but this is how I did it . The base was cut down to set the final clearance at around 20 though or so I thought .As it turned out I messed up and didn't remove enough material so I replaced the standard 20 thou thick gasket with a 5...

The subject on this one is the Stihl MS 200 T . I recently did some improvements to mine with very good results so I thought I'd give a few hints in case anybody was interested . As with any saw engine the biggest improvement can be realized by improving flow out the exhaust ,this model is no...