When pulling cord to start it pulls hard take plug off its easy can't get it to start

Couple of things, the cord could be bunched where it won't pull, the other is there are spring loaded teeth that have to engage and those could be messed up, you'll have to take off the cover of the pull cord and see

Joe,

Compression is what makes it hard to pull start.
It should be like that.
Try holding the Draw/Pull Cord tight to your stomach and push the Blower away from you.
Kind of like throwing the blower down & away, but holding on to it.
That might be easier than pulling the cord and will save your arm.
Good luck !

When you remove the spark plug is it very wet?
after the plug is removed when you pull the cord sharply does liquid come out from the hole?

What is your model #?

Some saws with autotmatic oiling will leak bar oil into the cylinder and cause this. Pull out the spark plug and hold the saw so the oil runs out of the spark plug hole. Pull the starter cord till no more oil sprays out of the hole.Clean the oil off the plug and start your saw. It will smoke more than normal till the extra oil is burned out.

Sounds like it seized or is starting to. I would put a little two stroke oil in the cylinder about 20cc maybe a little bite more 50cc if it is really hard to pull.... Leave The plug out and pull on it about 30 seconds hopefully when the plug is back in it will run... goodluck. If its really tight needs to be rebuilt....

Most saws have a compression release valve which you press for that reason. It is located on the cylinder at the back of the saw. I don't know if the 55 has one , but it should.

one piston ring has expanded now having no or a very fine gap increasing the compression ratio causing this to happen. When the spark plug is removed it is very easy to pull on the cord in any means. A inspection is due of this engine or a new chain saw is needed

you need to keep the gun open so allowed water to flow and not overpressure the pump.