husky 394 problems

[wahlturfcare]

i have a husky 394xp that for the lift of me wouldnt start today. it did sputter when i pulled. i replaced the plug, cleaned the carb out and checked for spark. a couple months ago it took for ever to start but finally did but wont now. Any ideas on what to try?
I love the saw and want it back running.

 

[hornett22]

sounds like a major tune up is needed.

i.e. carb clean and kit.fuel and air filters.old gas?sorry but machines need maintaining from time to time.they are designed to run,not sit.

 

[wahlturfcare]

394

thanks for the quick response. I went ahead and flushed the fuel out today and cleaned up the air filter too. i also blew out the carb too with the air gun and it still did the same thing. i did notice that i am getting fuel to the plug so i know that parts good. i've got great compression and spark.

 

[Hard Knocks]

Have you pulled the muffler and checked the piston?

 

[RiverRat2]

i have a husky 394xp that for the lift of me wouldnt start today. it did sputter when i pulled. i replaced the plug, cleaned the carb out and checked for spark. a couple months ago it took for ever to start but finally did but wont now. Any ideas on what to try?
I love the saw and want it back running.

Have you checked he compression??? lately like real #'s,, sometimes it can feel good but be down enough to make a difference,,,also like Hard knocks suggested, looked @ the piston & cyl..?

 

[wahlturfcare]

394

i couldnt get the muffler off without breaking the bolts, but i did look throught the plug hole and the piston looked pretty good. the plug was pretty wet like it is all the time. i used my automotive compression tester and the first pull came out to 25psi. is that pretty good? The gauge has 25 on the inside and 200 on the outside if that makes a difference.

 

[hornett22]

25 psi ?

no way! if that is so,it's toast.i'd think it should be at least 145.

 

[TimberPig]

To properly test compression, you need a gauge with a Shrader valve at the cylinder end of the gauge, as the small volume of air displaced by a saw engine, makes the volume of the hose a significant factor if it does not have the valve.

Once you have the correct tester, you pull until the gauge stops rising, this will normally take at least 5 pulls. One pull doesn't say much.

25 psi as a reading properly taken, would make me suspect your gauge. Even saws with stuck rings give more than that. The only way it would be that low correctly taken, is with severe piston and cylinder damage that leads to virtually no compression.

A quick (but not foolproof) method that will give an indication of the saw's compression is to simply lift the powerhead by the starter handle. If it lifts and holds, or slowly drops, compression is likely good, or the piston is so seized it is barely moving. If the saw drops instantly, compression is bad.