Husky 55 that refuses to start, flooding.

[chileman]

I recently started having issues with my Rancher 55. Was cutting the other day, when after stopping for a bit, it refused to start. It seems that the saw is flooding, I can see lots of wetness on the sides of the piston from the exhaust port and the plug gets wet. If I turn the saw over, I can see fluid running down the wall of the cylinder. I don't see any scoring. In addition, if I use the decompression valve, I can see a fine mist pulsing from the valve port when cranking.

The carb is several months old and holds pressure and vacuum applied to the fuel port. So far, I have checked for spark and it appears good. I changed the spark plug anyways as I had one lying around. Muffler appears unclogged. The compression is about 75 on one pull, building up to about 135 on 5 pulls. I have used an air compressor to blow out the cylinder from the spark plug hole and exhaust port, but it doesn't help.

I can't figure out what could have happened in the course of a few minutes that would have caused the saw to stop running and cause so much wetness. Any help would be much appreciated!

 

[HarleyT]

Take the carb apart and look!!

 

[Poleman]

I’d say your needle is sticking and is being held open by debris in the carb. Take a look see like Harley says, a cleaning and kit will probably fix it.

 

[lostone]

Edit: if it was a stuck open inlet valve, causing flooding, it wouldn't hold pressure during testing.

No vacuum test on a carb.

 

[chileman]

Well, it was a rookie mistake. I finally got the saw to run, I guess I hadn't aired it out enough. But after cutting 20 minutes it refused to start again. This time I diagnosed it in the field and found no spark. It appears the coil is cutting out when it gets warm and the flooding was just a result of me trying to restart it. Duh.