Husqvarna 455

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Daniel VanMeveren

ArboristSite Lurker
Joined
Dec 31, 2018
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Working on a husqvarna 455 i can not get it to rev up without stalling it starts right up thow replaced the piston and seals and gaskets pressure tested and vacuum tested as well all was good saw has 150psi saw has new carb new intake fuel line and filter and impulse line primer bulb is new also muffler screen is clean also any help is greatly appreciated im about ready to scrap it
 
Adjusting the carb doesn't seem to have any effect on the stalling? It sounds like it's leaning out when you try to accelerate it, turning out the high speed adjustment does no good?
Or possibly a weak ignition? Enough spark to start but then gets snuffed out?
 
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