Husq 550 XP cuts out

[Mellish]

Any technical help much appreciated.

 

Starts cold, but when I try to rev, it cuts out.

 

When it warms, I can operate with lots of revs, but when I release, rather than idle it cuts out.

 

Difficult to start hot.

 

Cleaned and reset spark plug - lots of spark.

 

Air filter looks clean.

 

I've had the fuel for a while, but it was well shaken and worked well in a Husq strimmer a couple of weeks back.

 

One thing - I took out the spark plug when it was hot and it looked dry. That was after lots of attempts to restart. So I'm thinking fuel supply. Can anyone tell me the steps to take to fix? (I'm a technical newb, so stripping the carb is probably out...)

 

I saw another comment about 550s that the user had to adjust the "meter lever" - anyone know what that is, how it's fixed?

 

Thanks

[Stubby]

Sounds like it might be faulty fuel valve . ( some electronic part I think ) Also get it reset at the dealers . Then set the A/T yourself in a deep cut for a few mins .

[1974mj]

Had the same issue with mine, got it back yesterday from Husky dealer, mine needed a hot start kit fitting......runs lovely now.

[Mellish]

Going to try some Aspen... just in case.

[Mellish]

New fuel didn't make any difference - wouldn't start cold. Looked at the spark plug - dry.

 

I'll have to bite the bullet and drive to the repair people.

[Jtcs]

I had the same problem with mine it was only a year old. If you take it back to were u bought it from they should send it back to husqvarna and they will repair free of charge. This is due to it being a common fault of husqvarna.

[Bob The Dog]

Had a similar issue with mine a while ago. There was a recall on them, and it was to do with a breather of some sort. All done at husky expense, so worth popping it back into the dealer and having it sorted. Perhaps a plug in to the computer will identify the issue and then be fixable.

[adw]

Not aware of a recall, theearly 550/560 has a pipe from the fuel tank breather, to the air filter elbow ( emissions from fuel gas ) there was a kit to blank off the pipe to the elbow as this was effecting hot starting due to fuel vapour in the carb elbow. Your issue does not sound loke this, more like fuel starvation, back to basics, replace the fuel tank filter as this is cheap and easy, next is a little more difficult, the drive side crank seal, these saws have nylon bearing cages, if the cage breaks up it will destroy the crank seal, this will then be a full re build.

[spudulike]

Not aware of a recall, theearly 550/560 has a pipe from the fuel tank breather, to the air filter elbow ( emissions from fuel gas ) there was a kit to blank off the pipe to the elbow as this was effecting hot starting due to fuel vapour in the carb elbow. Your issue does not sound loke this, more like fuel starvation, back to basics, replace the fuel tank filter as this is cheap and easy, next is a little more difficult, the drive side crank seal, these saws have nylon bearing cages, if the cage breaks up it will destroy the crank seal, this will then be a full re build.

 

If your local guy has the autotune diagnostic kit, it will show up as a rich setting on the H&L screws - seen this before on a 540 with leaking seals.

 

It does sound like fuel starvation at high revs or an air leak though!