Top 20 Husqvarna 150BT 50CC Gas Leaf Backpack Blower 180 MPH - Manufacturer Questions & Answers

Aeration in tank other problem can also maybe L H adjustment How to Adjust Small Two Stroke Carburetor

First try this... put some 30 weight oil in the plug hole aso much as you can until it reaches top of plug hole. Let it sit there a few days allowing the oil to creep between the walls and piston. .. then try turning the flywheel with a socket and ratchet, a little forward, a little the opposite...


Now, if that doesn't work, it depends on your unit... if we are talking about a $400 top model back packer, then it would be worth getting it repaired... you would be paying between 150 and 200... if the unit costarts 300 or less than buy a new one... period

Kill switch most likely has broken wire between switch and engine. When in "kill" position, it should connect the top of the sparkplug to the rest of the engine. If it doesn't, either the switch is bad or the wire is.

Internal or external snap rings usually require a special pair of pliers to remove. In absence, you might try a very pointed pair of needle nose pliers or even a pair of dental tools or similar. Once the ring begins to dislodge from its groove you should be able to work it out. Reinstallation might require the specific tool.

open gas cap and see if it will run again. m,any times the gas tank vents clog and the engine can't draw gas after a few minutes. another thought is the oil mixture.. 50:1 with oil made for air cooled engines....not boat engine oil

easy solution....just screw 2 small sheet metal screws into the tube to hold them together

With todays gasoline it turns to what is called varnish very rapidly and more than likely some of the fuel that set in the carb over those 6 months has turned into a gummy varnish so the carb probably needs cleaned, If it is not to bad you can probably adjust the carb with the air/fuel mixture screws and keep it running well till end of the season, shouldn't take more than 1/8 to 1/4 turn though. I hope this helps If you need further help, I’m available over the phone at https://www.6ya.com/expert/steve_f5a6ca85b5d1ffc9

They are refering to the 'fuel primer bubble' located on the bottom of the carb.

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See attached. .. manual available at

https://www.husqvarna.com/us/support/z560x/

Question edited for clarity. Shown on Page 20 of the manual. https://www.manualowl.com/m/Husqvarna/YTA24V48/Manual/493664?page=20 ..

why, just fill tank

Likely there is air trapped in the system. Try raising drive wheels (safely) off the ground and operating forwards backwards. With minimal load on the hydo pump and motor, the air should purge.

The flywheel key has likely sheared. Contemporary utility 2-cycle flywheel keys are integrated into the flywheel. A new flywheel will be likely be required.

Question edited for clarity and typo botton to bottom. It should be at the top of the stroke. It is called TDC or Top Dead Centre and is then the spark ignites the fuel and air to force the rotation onwards in the same rotation as travel.

The clutch has a two wire flying lead. For the clutch to remain powered after disconnecting the cable at the clutch (blue/black) implies someone has modified the original factory wiring. See attachment.

Comment for further assistance.

Check the deck ant--sway bar is in the correct location. See attach.

Owners manual available no fee download at
https://www.husqvarna.com/us/support/

Weak spark or no spark or spark at wrong time. Do not use a neon type spark tester as it will indicate spark when it is insufficient. Use an inline gap type tester.

To test for spark, compression, and timming, drain all the fuel, choke off and give the the starter several pulls. If the plug is wet, leave plug out and give it several pulls, reinstall plug and give it several pulls, then check plug. Repeat until all residual fuel is gone and plug remains dry.

Now that all fuel is gone you can use an alternative fuel, i.e. starter fluid, that won't flood the engine.

Air filter removed, hold throttle open and spray a 1 second burst directly down the carburetor throat, release throttle. Leave air filter off and promptly attempt to start, several pulls. If no fire then it's likely a spark or compression issue, not the carburetor.

If it fires and runs for a few seconds, then timing, compression, and spark are OK and carburetor remains suspect.

Comment for further assusrance.