Murray Weedeater Won't Start

[ILENGINE]

Just FYI, the murray trimmers are made my MTD and the reject compression on their products is 90 psi, Below that and you are done. Some of the newer 4 stroke trimmers do have compression release, so that may be a factor.

 

[solefate]

Just FYI, the murray trimmers are made my MTD and the reject compression on their products is 90 psi, Below that and you are done. Some of the newer 4 stroke trimmers do have compression release, so that may be a factor.

Yeah, I figure it's just because I bought a cheap tester. I tested it on an echo trimmer that runs great and it only read 55.

 

[primerbulb120]

Even after 20+ pulls/primes, the spark plug will be bone dry when removed.

Remove the spark plug, spray some starting fluid through the hole directly into the cylinder, put the spark plug back in and try to start it.

 

[solefate]

Remove the spark plug, spray some starting fluid through the hole directly into the cylinder, put the spark plug back in and try to start it.

No go. I found another murray to test, and this one has about 15 lower psi on it.

 

[primerbulb120]

Pull the muffler off and check for scoring. If the piston and rings look good, leave the muffler off and try to start it again with starting fluid sprayed directly in the cylinder.