Crankshaft Seals for Husqvarna 120 mark 2 and muffler mod.

Crankshaft seals for Husqvarna 120 mark 2.
Issue I had it would run ok for few min. once started then once hot or up to temp. it would start acting up and not run good. Adjusting the carb sometimes helped sometimes not. It would just run erratically. I did all the basic stuff, gaskets, new carb, fuel lines, filter, piston, cylinder noting really helped. Last was replacing the seals and that fixed it. I didn’t replace them sooner because I did the leak down test and it had no leak but I did it when it was cold and that is probably why it didn’t leak. If you have same kind of issues check or replace the crankshaft seals. Bearings and seals are all in one for this chainsaw.

[@theshammy54]

How do I remove fell lines on A husky 120 mark-1 chainsaw

[@MeadowgateWorks]

If you need a video I don’t have the chainsaw but I can try to get one and make a video, also I will try to find a fuel tank diagram and send it to you then basically follow below or it should be very similar to other 1 series Husqvarna chainsaws.
You have 2 lines that go in the tank. One has a filter on it in the tank fish the line out with the filter and pull off the filter then disconnect from carb and pull the line out. 2nd line goes from the bulb to the tank, pull line of the bulb then pull out of the tank. Note how much lines were protruding into the tank so you can have it the same when you put new ones in. Cut new lines to length and push them back in. Not easy sometimes it’s a tight fit.

[@dalewhitmore143]

Hi good work getting that saw up and running again
I too have a 120 and want to put a 20" bar
Do you have a part number for that sprocket?

[@MeadowgateWorks]

@@dalewhitmore143
From Amazon:
CSCTEK .325 7T 7 Teeth Clutch Sprocket Drum Bearing Kit for Husqvarna 137 136 141 142 36 41 235 236 240 235E 236E 240E Chainsaw #530014949,530069342 (325-7T-137)

[@MeadowgateWorks]

@@dalewhitmore143
a.co/d/0abYiJPV

[@dalewhitmore143]

Thanks very much

[@dalewhitmore143]

​@@MeadowgateWorkshaving trouble finding that bar here in Australia
I can find a holtzfforma and other brands in the same spec to fit HUSQVARNA 36 41 50 51 55 336 340 345 350 351 353 346XP 435 440 445 450 455 460