Author Topic: Husky Special 50 won't start (Read 462 times)

KilliansRedLeo · « **Reply #20 on:** April 06, 2014, 04:01:59 am »

Thanks Jim!

brokenbudget · « **Reply #21 on:** April 06, 2014, 04:33:02 am »

the tank is only one step. if it had crap gas in it, the carb needs to be properly cleaned and rebuilt as well.
if the fuel went bad, or had time to harden into varnish, the fuel line and filter need to be replaced. not just clamped off and flushed.
to me, using smaller nuts/washers is a better idea. they fit into the smaller areas and will break up any hardened varnish better. these tanks are flimsy on the best of days, best not to have 2 'heavy' nuts banging around in there. especially if the gas has gone that bad. it has a way of affecting the plastic and the seam is the first place for problems to start.
CHANGE the fuel line. you WON'T get it clean.
properly clean the carb. don't use high pressure from an air compressor on it. low psi only. I only use plastic safe (sensor safe) carb cleaner or NON-chlorinated brake cleaner. if it doesn't say 'NON- chlorinated' clearly where you can see it on the label. it isn't safe for the carb.
you are also going to need a new carb mounting gasket.
since the saw has sat for quite a while, how's the intake boot and impulse grommet? this is a very known issue area for these saws. I won't ask about the carb mounting block threads......

jrbarba · « **Reply #22 on:** April 06, 2014, 05:30:45 pm »

Here’s the latest on the Husky 50 – put gas directly in carb, started after a few pulls, let it run for 5 to 8 minutes on idle –seemed okay. When I throttled up, the saw went under load and the chain wouldn’t move – I checked the brake and it was off, but felt odd. I pulled the chain cover off and the brake is gone, inside of case coated with residue that is part of the material itself. It looks like the cover is toast and binding on the sprocket.
Anyway, the saw doesn’t start regularly, so I am thinking that I need to pull the existing fuel line and replace it (as suggested) and get a new gas cap. When I pull gas, put the cap back on and stand the saw on its bottom, I can hear air exiting the hole that the fuel line comes through. Anybody know where I can get reliable info on ID and OD of that fuel line?
Thoughts or suggestions?

KilliansRedLeo · « **Reply #23 on:** April 06, 2014, 06:05:23 pm »

IIRC it is 3x5 mm fuel line. The HVA part number is Husqvarna 544324902 (replaces 501768301)

JohnG28 · « **Reply #24 on:** April 09, 2014, 10:47:19 pm »

Quote from: 660magnum on April 05, 2014, 10:45:39 pm

So they rattle . . .

You shake the tank with the bar nuts inside to break up the crud you are trying to get out of the tank!

Ok, I guess that makes sense. Haven't come across one that bad before! Thanks.

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Author Topic: Husky Special 50 won't start (Read 462 times)

KilliansRedLeo

Re: Husky Special 50 won't start

brokenbudget

Re: Husky Special 50 won't start

jrbarba

Re: Husky Special 50 won't start

KilliansRedLeo

Re: Husky Special 50 won't start

JohnG28

Re: Husky Special 50 won't start

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