Husky353 runs but dies

My Husky 353 isn't co-operating with me this fall. I started it up after inserting a new plug (gapped), new filter, topped the chain oil up, new gas/oil and a good cleaning around the carb (air blown).
It will start and run for a brief time then just shut down. I tried letting it idle when it starts but dies, I tried to give it more throttle as it is running and dies.
Starts fine just won't run. Not sure what I'm missing? Could the coil be getting old and worn out? Anything else I should be looking at?
Thanks for your help.
Charlie S.
 
Most likely a fuel problem.

Look at the fuel lines, they may be cracked or split, good idea to replace them and the primer bulb anyway.

The carb could be clogged internally. Usually they can be taken apart and cleaned without needing a kit.

Did you try backing out the high speed adjustment screw a little?
 
Hi Steve

Fuel line looks fine. The saw doesn't have a primer bulb on it. I had the top of the carb off and peaked inside, it looks very clean. I cleaned the diaphragm on top and didn't get a look at the needle valve though. I put it back together and same thing, runs but stalls shortly after. Ill try backing out the high idle a half turn or so. Might be the answer thanks.
Charlie S.
 
air leak in intake boot between carb and cylinder? Lots of issues on the huskys with that. Google and YouTube have lots of info on it.
 


It's a fuel issue. Either junk in the carb, bad lines, bad seals, bad boot or gasket, bad filter or it needs a carb kit. What you describe is a classic fuel issue.
 
it fuel side if it runs then dies, most of those,take carb off throw in trash install new one along
with new lines, one pull out the door it goes. way cheaper then time took cleaning those little
carbs,but on side note thou this shop quit working on chainsaws, too many brought in out dumpsters,
can you get this going for 50.00 dollars or under. biggest waste time you can do. good luck
 
Hi
Yes, new fuel filter and gapped plug installed. I clean the air filter also, rinsed and dried. Little to much oil in mix so I dumped that fuel and put a better mix (less oil) back in. Same thing
 
(quoted from post at 12:14:42 09/20/17) Hi
Yes, new fuel filter and gapped plug installed. I clean the air filter also, rinsed and dried. Little to much oil in mix so I dumped that fuel and put a better mix (less oil) back in. Same thing

Look, you have a classic fuel issue. You can have cracked or deteriorated fuel lines, gunk in the carb, a bad fuel pump, varnish in the carb, leaking gaskets or a leaking boot, bad seals or several other things. Start with the simple stuff and check your fuel lines and impulse line if you have one. If the lines aren't rock hard or gummy worm soft and they don't have cracks, move onto the seal between the carb and jug, it's either a boot or a block with gaskets. If they are good you're into the carb itself. You'll need to clean it and check the parts for wear and proper adjustment. If you don't know how to do any of this, take it to a saw shop.
 
I had the same issue with my 353. I suspected a fuel issue, I removed the top of the carb. After taking note of how the fuel screws were set I opened the screws fully and
carefully put compressed air to the little holes facing up. Put the lid back on the carb, reset the fuel screws and I've never had a problem since.
 

I had a 2 stroke engine that wouldn't start, rebuilt the carb with a new kit and 100% fixed. Just for grins, I put the old diaphragms back in and tried to run it. It would just barely run, it was obviously not pumping enough gas to do anything more than idle. The old diaphragms were a little stiffer than the new ones and that was why they didn't work as well.

I have a small spray bottle of 2 stroke fuel, I'll either prime the engine with a little into the air filter intake, or if it will at least idle, spray in to the intake and see if it runs better.

The old chainsaws without primer bulbs are the best ones to prime the intake. Pulling the cord a dozen times on a 60cc saw without a compression release to get some fuel up out of the tank, thru 6" of fuel line, fill the carb and then start, gets my tongue hanging out. Much easier to squirt some fuel and get the engine running and let it do the fuel pumping....
 

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