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The butterfly shaft is actually slotted. It's probably milled flat so the screw seats properly.

Here's something else you should check. This throttle plate will never let a proper idle happen. Whether it's from wear or poor fit from the factory, the high bypass on the sides will create not only the high idle but mixture problems as well. The reason being there won't be enough flow at...

I normally use some fine emory on the cylinder to help break in a new ring. Looks like you have the decomp port, I just picked up a farmsaw myself that has the auto decomp. You will need to disable it to get a proper reading if you have this feature and haven't done so already.

Had this happen to a saw I just picked up, it would give me an indication on the neon tester but not with a spark plug. I checked the kill switch by disconnecting it, no luck there. Then I checked the coil gap, seemed excessive. I adjusted it down to where it should be with a shim and got a nice...

Pioneer farm saw, given to me for free. Friend had to move off his property and this was just another saw that had been sitting outside neglected. Complete and original, even has the original bar which is still usable. The piston and bore are in excellent condition but the saw had no spark...

If there's no corrosion inside the carb or wear on the butterfly shaft, rebuild the old carbs. If they have issues and you need to replace them, try farmertec for cheap aftermarket. So far every carb I have bought from them worked. The last one was a wt215 copy.

I set to spec height. Had one valve stick open because of a stiff diaphragm.

Any aftermarket heads that don't cost an arm and a leg?

Wondering if anyone has converted the Stihl Hl75k or similar long reach hedge trimmer to a pole saw? The pole is 1" diameter and the shaft is .200"/5.09mm square.

Homelite xl1/super mini. Little torque monsters.

Yes, the muffler was gutted with only the slits in the tubes acting as a sort of baffle.

On my 2375 I filled in the old exhaust and vented the mounting tubes to exit out the front. Of course I ditched the cat cage as well. l.

So, it runs and quite well. Didn't even have to put a carb kit in it, just drained the brown old gas and it started running once the old gas was flushed out of the carb. Even the mixture needles were spot on. Next to nothing for wear on the rim sprocket either. It pumps oil, but only when...

Will have to see if I can get it running.

Have a 3700 that's missing the air filter cover and filter. Has compression and good spark. Saw is in very good shape showing little visible wear.

The ratio I use was 1-1 hydrogen peroxide to vinegar, with a small amount of salt, in this case several from a shaker. Haven't played with ratios yet to find the ideal mix. Diluting it with water would slow it down but may be necessary for large jobs.

Keep it for parts. They are actually easy to work on and good to practice your repair skills. AM Piston/cylinder kits are cheap, and you can play with modifying them without investing a lot. Junk ones can be picked up for $10-20, and they actually run half decent when put together right. A...

In the past I was using muriatic acid to remove rust from mufflers etc, but the fumes made this an outside work proposition only. Last night I tried something different on some drill screwdriver bits, I mixed up some salt, vinegar, and some hydrogen peroxide. I put it in a pudding cup and...

I probably would have used glass and Emery cloth as well. However don't knock the usefulness of a small lathe, I've owned a unimat for years and lost track of how many times I've done small jobs with it

I've repaired mag rot with west 205 resin and slow hardener mixed with fiberglass flox. Really tough industrial strength stuff originally developed for wood working.