Gregory Davis

Karl, thank you for responding so quickly !

Note that my dealer already took the carb apart and cleaned out the black junk from the fuel screen, which allowed it to start. It has been flooding ever since.

i took the carb apart this morning. I did find a little black debris in a hole on the diaphram side where the gas comes in. I took the needle and fuel lever out (not really a float :)) and it was clean, seat as well. I did notice that the diaphram that actuates the fuel lever is concave, ie, when assembled, the gasket pin will press on the fuel lever a little but I could not force any air, by blowing into the fuel inlet port after I got it re-assembled. If that gasket is concave such that it presses on the lever a little, is that normal?

Maybe ethanol fuel has whacked out the gaskets enough, especially the one that presses on the fuel lever float thing, to pre-load the fuel lever too much. I have been doing mechanic repair for 30 years so bring on the mechanics :)

I also did find this carb on the Walbro site and have the technical description and parts breakout. The idle screw, low and high screws are adjusted. Used it today and every time we need to start it, we have to hold the throttle open some to get it to start, this is with no choke and no priming. So it's still flooding some.

Husqvarna only covers carburetors for  a year, which sucks really ! I've already checked into this. So I'm going to try a new gasket set and see what happens. Now that I'm not using ethanol fuel anymore, maybe it will last longer before acting up.

I must admit that I'm dismayed about Husqvarna so far. I had a Poulan Pro for over 10 years and it started every time without effort, less then $200 cost. This 455 is at least twice the price.

I hope I get it fixed with the gasket set. I'm going to buy a gauge to check the fuel lever setting also.

If you know that Husqvarna should repair this saw for free I'd like to hear more about that too :)

thanks again Karl !