help getting my jonsered 625 started

[kwikrp]

Ok well, I was set in changing the ring, but spoke to couple other people. Some have told me that this saw has a vacuum controled motor and if there is a leak it wont start. Some have told me a bad decompression valve would cause it not to start. I have about 110 psi of compression, I have fuel, and spark but wont start. Before I attempt to replace the piston head and ring and it still not start. I am seeking advise on anything else to check to rule any other probably causes.

 

[smokinj]

if you have spark and gas air the only thing left bad decompression vale would only show up after started.How long has it been since its been started?

 

[CT-Mike]

My Jonsered 2063's are very cold blooded and require a lot of pulls to get them started for the first time. Once warm, they start on the first pull.

 

[kwikrp]

sat for about 3 yrs, I have pulled many mant times even shot some starting fluid (ether) down there

 

[Dill]

You have good spark right?
Dip the plug in gas, and put the plug back in, and give her a yank.
Are you spraying ether in the plug hole or the carb?

 

[smokinj]

sat for about 3 yrs, I have pulled many mant times even shot some starting fluid (ether) down there

If you cant get it going on the starting fulid? wow you said your getting spark?

 

[kwikrp]

I have tried to spray it both down the plug hole and into the carb, and yes I am getting a good spark

 

[smokinj]

[quote author="kwikrp" date="1226797578"]I have tried to spray it both down the plug hole and into the carb, and yes I am getting a good spark
puzzles me spark and starting fulid something should of happen
Plan B

 

[Dill]

You must have 0 compression then, is it doing anything on the ether?
Did you try the plug in gas thing?

 

[kwikrp]

I am going to try the plug has thing next, but anyone know the proper plug and gap for this saw. I want to check and rule out things. Nothing happens witht the ether the same as the gas, just cranks no attempt to even ignite.