New project showed up - MS290

Ahhh I knew something wasn't quite right! I have never run into limiter caps befor. Thanks for the info. By the way once I could get a small screw driver into the copper on the kill switch it popped it right out. Man I tried to be careful with it when removing it but it was in there pretty good. O well that wire can't cost that much.

 

Yes the piston is a pain to get out. I had to fish my docomo valve out of my cylinder. The plastic/handle all in one is a pain.

Yes that fuel line is the problem.

And pull those red things out and you will get full adjustment on the carb.

Carbon on the exhaust port on the outside is not a problem as it is on that saw.

Good work.

Get a pro saw and there real easy. A 260 440 460 or 660 they come apart in half the time.

 

Tried to get the parts I needed today but the dealership didn't have them and they won't be in until Wednesday so I did some cleaning and detailed every bit of the saw which should make the reassembly go much easier. Here are a few before and after pictures.


Before:

 

After:

 

Nice.

 

Parts came in today so after I got home I went out to my balmy 35 degree garage and took 1.5 hours to put this thing back together. There were a couple of times I had to think hard about how it came apart but all in all it went back together well. I did notice while I was rolling it around it seemed like the tank vent may have been weeping a bit but it stopped so I am just going to keep an eye on it for a bit. Anyhow once I got it back together it fired right up and was running great . It doesn't bog out at all now when you blip the throttle, revs right up and idles way better also. I was cold and hungry at that point so it's sitting back on the bench but I can't wait to really run it to see how it does. I also want to mod the muffler so that's next after a few tanks of fuel.

Final results of tonight.

 

Good work. You won't forget from here on now. The first is always the hardest. Did you build the carb or just replace the line?

 

Didn't rebuild it yet cause it looked really good on the inside. I figured I would replace the fuel line first since it was obvious and then if it needed it I could work on the carb since its easy to get to. After tonight I'm not sure it will need it. It seemed to be running great although I didn't run it hard or for very long.

 

Yea seeing the shape of that hose I knew that was the problem sealed up at low demand but start putting the throttle to it increasing g fuel flow and you start sucking air, starving it for fuel.

The ones that get you are tiny pin holes or splits. You run fine one week then act like yours did.