Chainsaw Repair

Check your messages for an ipl and service manual

Been reading how to expose the cylinder and also reading a couple different replacement cylinder reviews.

Is there any certien company that stands above the others?

      Al

Here's another trick .I had a guy give me a McCulloch 700 with a bad recoil he found in a dumpster ,bar ,chain and every thing  .Stuck tight as a bulls butt in fly time .I gave it the Kroil treatment and after about a week used a hardwood block and a little ball peen and gave a few light taps on the flywheel every day or so .After about a week it freed up .Rebuilt the cab,fixed the recoil and never did another thing else  to  it and it runs like a top .

You have to remember when these things were made ,1971 and 48 cc .I looked at the parts list and it shows both points type ignition plus two types of solid state trigger units .I would guess on the points some where between 18 to 20 thou. gap .Tight would fire late and wider would fire early .Most Stihls are set to fire around 27 thou before top dead center.A couple degrees advance might pep it up some but too much you'd have a hard time starting it .
Just about any saw can be enhanced to preform better ,just depends on how much you want to do to them .On any engine you have to remember if the exhaust can't get out the fuel and air can't get in .So you start with the exhaust .That saw does not show a two piece muffler so in order the rework the muffler it could be a problem .In order the cut the baffles out you have to cut the muffler cover off and weld or braze it back on .Not doing that perhaps enlarging the exit hole would help just don't get carried away with it .Hugely bigger is not always better .You are safe if you don't go any larger on the hole than about 80-85 percent of the area of the exhaust port .After that it just gets louder with no or very little gains and take a chance of cooking the piston because it's over running the carb .On the other hand if you just want to make it run just leave things alone .Which is probably what I would do . Good luck

If the IPL is correct it shows a couple of plugs in the flywheel which I assume is for access to the points .If it does indeed have points about the only thing that would go  wrong usually would be the points themselves  need burnished and set .It might even have spark once you get it shook loose .