Howdy again westcoast1,
I don't know how to post pictures but will see if I can figure it out. Perhaps one of the other members could help us both on that one. We could use the search function and see if someone already explained it or there are some instruction on the main page I think.
Did you try the other things I mentioned and look for spark?
The only things I can think of that may cause this (not sure though) would be:
1. Something broken or cracked on the pull starter assembly (take it off and inspect it for breaks and cracks). Take your time and look close
2. An obstruction in the cylinder ports (should be good though if you can see the piston) at least the exhaust side.
3. I wondering if the saw may of been abused by a previous ower and they hit sometime hard with it while running at full throttle (I'm wondering if this could perhaps shear off the woodruff key and or bend the crank?) If you ever hit a stump with a lawn mower you can shear off the woodruff key. It maybe why you have no spark.
4. Not sure on this but I have heard that if the crankcase is full of feul/oil it makes them hard to pull. (you could pull the plug out and get the piston to its highest setting and turn the saw upside down and see if anything drains out.
Thats about all I can think of at the moment, its tough when you don't have your hands on it.
If you have not run a chainsaw before, I will tell you it is the most dangerous tool on the farm. Be very careful and don't cut alone. Have someone with you. One wrong slip and you could bleed out before you can call for help. Wear gloves, boots, comonation helmet/faceshield/hearing protection. I also reccomend those safety chaps/pants although I myself don't have a pair yet.
Do you have the manuals that came with the saws? If so read up good on where to stand, how to hold the saw, what kickback is and how to minimize, how to fell, limb and buck. Do you have a neighbor of friend who can provide any training or advice? I'm worried about you westcoast1 especially if your doing this alone. Running saws is serious stuff and so is fellin timber. Can't be daydreaming got to be focused and head on a swivel.
The echo web site has some good safety manuals on it try this link and download one to you computer.
http://www.echo-usa.com/technicalresults.asp?model=cs-510&english=1&B1=Submit
When you got this saw did the previous owner mention any problems it might have?
There is lots of help on this site but nothing is better than hands on instruction from a pro/expert, please seek one out. I'm still scared running mine sometime a respective kind of scared.
Now you mention you have a homelite that runs good. Look at some of the threads here about sharpening then. Do a search. You can use you file and just follow the same angles on the chain, might be best if you bought a new chain for a good reference. There is lots of talk about guides, jigs and grinders on here but in reality you don't have to have them they just make it easier and simpler. I only use them because they do a better job then I can do by freehanding. I know plently of people who only use a file and they been doing it their whole life.
by for now I look around and see if I can figure out how to post pictures.
v/r
Mike
ps if any more experienced members can offer any advice please do. I'm still pretty green myself and don't want to see this person get hurt.
