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Husqvarna 550xpg piston and barrel renew.


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The Autotune will register the running time of the saw which would be interesting. The saw may have had a nip up or you may not give the air filter the cleaning it really needs and fine particles may have worn the piston.

Your mechanic may be giving you a load of old todge, however, these autotune saws are very sensitive to wear in the bore - you cant just up the idle on them and makes for frustrated repair technicians!

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He initially looked at my chainsaw as it wasnt starting,
I got it back from him the following day,him saying there was nothing the matter with it,
So i started it and it revved up well,even sounded alot more powerful,then it died on me,not being able to rev up any more after startng it at idle tickover.
So took it back to him again,
Then he said that it was the piston and barrel that needed renewed.??

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