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Gentlemen, it has .065 squish so it is not hitting the top of the cylinder, but it is very stiff to turn over. Could the rotating assemble be crooked such that it moves but the force needed is causing the rotation to be too slow for the unit to get going (AKA run)? IF I can start the CS590...

Ttxpc -- Thank You for your ideas, My squish, as posted earlier in this thread, is about .065" which has been explained to me is the cause of my low compression. The thing is (also started in earlier posts in this thread) that the saw should be super easy to turn over but it isn't so there is...

Well, I have had a lot of things to check and to look at/test that the kind folks here have given to me. The saw will still not start but I have learned a lot more about it and myself. In order to test the "hot sparkplug" idea, I did some cutting with my Echo CS-590. I found out that starting...

afleetcommand -- and -- MustangMike -- This is why I used one. Reports of dodgy operation were bad enough, but reports of the valve dropping into the cylinder and 86'ing the cylinder/piston would be much worse than the marginal cost of an OEM Husky decomp.

MustangMike -- It's all good! afleetcommand -- That would explain why I am in hell! Thank You for the insite! I've only looked at the choke releasing and it stopping at the high idle spot on the "master control" but not analyzed the plate/rod movement. Another item for the up-comming 'come to...

1000 pardons, sir, may all my children be born necked <g>

Larry B and brshephard -- I wonder if that is the chainsaw equivalent of "send picture of boat and motor" traffic903 -- I printed that on paper and started 'hacking' it out of some cutting board today. Mine DOES hang (as it should) in the 'fast idle' position but I figure it can't hurt to...

traffic903 -- I'll give that 'high idle' problem another look. Is there a post or video that shows how to 'give the high idle some love' or a more heavy handed adjustment? Sometimes a BFH is needed but maybe this isn't the right time to use one <g>.

brshephard -- No offence taken, we can have a little fun in this serious world of saws. I am new to chainsaws in general and read the owners manuals and decided (on my CS-590) that the ground start was best for me. In the middle of this MS660 'conflagration' I did try the drop start but it just...

brshephard -- "Tough to say without seeing in person." -- Next time your in my neighbourhood, stop in and I'll show you <g>

Wood Chopper -- ""will some saws not run with squish this high?"", my question, exactly. Any experts out there know? We have those 'pesky' "inquiring minds" here. (being new here I do not know how y'all give others a 'heads up' as I call it. Seen it done but don't even know who to holler at...

drf256 -- Thank You for the thoughts, I'll try and address as much as I can, but FYI, it has never ran, just several sputters but nothing more than that. I've done most (but not all) my attempts with the air filter off of saw. The choke works like it should. Only flooded it once very early on...

CR888 -- Yes, that is my understanding of the procedure so I am maybe a little too conservative in getting off the choke. I figure it is better to under choke than to over choke, less hassle in the long run (as the TV commercial said, you can pull me now or you can pull me later - well sort...

traffic903 -- Hmmmm, no idle ever, no slow, no fast - just enough sputter to trip the de-comp but never running. Lone Wolf -- I do not have any available local help of any kind, the new carb was factory new but acts just like the kit's farmertec carb up to this point in time. I can make...

Larry B -- Durn, and here I am just back from town with a double order of both and two rolls of baling wire, <g>

Larry B -- An even bigger worry about ether is it can make an engine 'addicted' to it by cracking the rings (at least in car/truck engines so I'd assume that it is to small motors as well), Thank you for the testing method, but I have already tried it, no bueno. I have a compression tester...

Thanks for that, it will help me in the long run even if it isn't a big factor now. Squish measures 0.065 inches at both sides and measured above the wrist pin. Seems high, is it a problem? or just lower than a hotrod saw?

Good Morning everyone! I want to thank everyone for their ideas on this. IF I do not address you personally below, it doesn't mean that I have ignored your post, just a lot to process at one time and long responses get lost in these 137 characters generation (no 'dis' intended here) <g>...

I screwed the high and low in (very carefully) and backed them off 1 turn. IF I add external fuel (brake cleaner or ether) it doesn't seem to really make any difference. It might spudder but not run just like before. Am I being too afraid of flooding it such that I go 'off choke' too soon...

Well, that happened faster than I thought it would. I have a ton of things to do this afternoon, but you really got me thinking so I went out and checked it, 'honey dews' be damn - yes even widowers have 'honey dews' ;-) I rapidly obtained several ounces of fuel with no proding on my part. talk...