Leaf blower guide
Husqvarna 350BT Gas Backpack Blower
Buyers who want a 50cc gas backpack blower with tube-mounted throttle controls, cruise control and a published maintenance schedule.
A 50.2cc two-stroke backpack blower Husqvarna gives at 21 newtons of blow force with 494 cfm and 180 mph at the nozzle, with an integrated harness, LowVib technology, air purge and cruise control on a tube-mounted throttle.
Listing checked . Confirm the model, included parts and availability before ordering.
Published specifications
- Engine 50.2 cm3 (3.06 cu in) two-stroke; 2.1 hp net to ISO 8893; max power speed 7,500 rpm; idle 2,200 rpm
- Max blow force 21 N; 494 cfm and 180 mph, both measured at the blower nozzle
- Weight without fuel 22.5 lb (10.2 kg); size 11 in high, 13.8 in long, 17.6 in wide; tube 2.598 in diameter
- Fuel tank 1.25 l (42.27 fl oz, 2.64 US pints); fuel consumption 455 g/kWh; CO2 794 g/kWh on the EU V cycle
- Spark plug NGK CMR7H or TORCH AC7R, electrode gap 0.023-0.027 in (0.6-0.7 mm); no catalytic converter
- Sound pressure at operator's ear 94 dB(A); guaranteed sound power LWA 104 dB(A); handle vibration 2.2 m/s2
Fit and limits
Strengths
- Husqvarna's specification table and the operator's manual agree on air flow, air speed, blow force and weight, so the sourced figures are consistent.
- The manual names two spark plugs with a gap range and sets out a weekly and monthly maintenance schedule for this model.
- Throttle controls sit on the tube with cruise control, and the listing names an adjustable offset handle and an ergonomic harness.
Caveats
- The listing's headline 692 CFM does not appear in Husqvarna's specification table or in the manual, and no measuring point is given for it.
- The listing's Noise Level field reads 692 dB, the same number as its air-flow claim; Husqvarna's figure is 94 dB(A) at the operator's ear.
- The supplied manual covers both the 350BT and the 350BF in one technical data table, so the columns have to be read carefully.
A 50cc backpack blower with the throttle on the tube
The 350BT is a Husqvarna gas backpack blower sold under part number 965 87 75-02, the same number in the listing's details table. Husqvarna's equipment lines give a round nozzle and an integrated harness and state that no vacuum kit is included, and its description calls it a 50cc gas blower with an X-TORQ engine, LowVib technology and an ergonomic harness system.
The listing describes the controls: cruise control and throttle controls mounted on the tube, and its from-the-manufacturer copy calls the machine a 50 cc mid-size blower. The listing's bullets also name an adjustable offset handle, an ergonomic harness and an air purge.
The listing's Included Components field says only backpack blower, and neither the listing nor Husqvarna's page as read for this record itemises the tube sections or nozzles in the carton. Check the packing list against what arrives rather than assuming a nozzle set is included.
692 CFM on the listing, 494 cfm in both Husqvarna documents
The listing leads with 692 CFM in its title and its bullets, alongside 180 MPH and 21 newtons of blow force. Its overview table repeats the air-flow figure as 692.17 cfm, so the number appears three times on the listing.
Husqvarna's specification table gives max blow force 21 N and max air speed with the round nozzle 180.01 mph, which both match, and max air flow at nozzle, round, as 494.41 cfm. The operator's manual matches the specification table: air flow with the blower nozzle 494 cfm or 14 cubic metres per minute, and maximum air velocity with the blower nozzle 180 mph or 80 metres per second.
The manual's fan performance block has only those two lines. It does not publish a second air-flow figure measured anywhere else on the machine, so nothing in either Husqvarna document read here explains where 692 comes from. 494 cfm is the figure both Husqvarna documents print; ask Husqvarna or the seller about the 692.
Engine and fuel figures, and a spark plug with an alternative
Husqvarna's engine block gives cylinder displacement of 50.2 cubic centimetres, output shaft power of 2.1 horsepower as net power to ISO 8893, a fuel tank of 42.27 US fluid ounces or 1.25 litres, fuel consumption of 455 grams per kilowatt hour, maximum power speed of 7,500 rpm and idling speed of 2,200 rpm.
The manual matches on the parts that overlap, giving 3.06 cubic inches or 50.2 cubic centimetres, an idle speed of 2,200 rpm, a fuel tank of 2.64 US pints or 1.25 litres, and no catalytic converter. It also gives a weight without fuel of 22.5 pounds or 10.2 kilograms, the same figure Husqvarna's dimensions block and the listing both carry.
For spares the manual is more useful than the web page. It names two spark plugs, an NGK CMR7H or a TORCH AC7R, with an electrode gap of 0.023 to 0.027 inches, that is 0.6 to 0.7 millimetres. Husqvarna's web specification gives the gap as 0.03 inches, so the two Husqvarna documents state it differently; confirm with a Husqvarna dealer.
Noise and vibration, and a listing noise field that reads 692
Husqvarna's sound block gives a sound pressure level at the operator's ear of 94 dB(A), a measured sound power level of 104 dB(A) and a guaranteed sound power level, LWA, of 104 dB(A). Equivalent vibration at the handle is 2.2 metres per second squared, and the emission block gives exhaust CO2 of 794 grams per kilowatt hour under the footnoted laboratory test cycle.
The listing's Noise Level field reads 692 dB, the same number as its air-flow claim. No Husqvarna document read for this page gives that figure, and Husqvarna's own sound block for the 350BT gives 94 dB(A) at the operator's ear.
Dimensions do agree. Husqvarna gives product size as 11 inches high, 13.8 inches long and 17.6 inches wide with a tube 2.598 inches in diameter, and the listing gives 13.8 by 17.6 by 11 inches, which is the same set of numbers in a different order.
The maintenance the manual asks for
The manual's schedule sets weekly and monthly items. Weekly items include examining the starter and starter rope for damage, checking the vibration damping units for damage, cracks and deformation and that they are correctly installed, examining the spark plug and cleaning the cooling system, which it defines as the cylinder cooling fins and the air intake screen.
Monthly items add cleaning the external surface of the carburettor and the area around it, cleaning the fuel tank, examining all cables and connections, and replacing the spark plug. The manual says to replace the plug monthly or more often if needed, and warns that an incorrect plug can damage the product.
The manual also sets a precondition for idle-speed adjustment: the air filter must be clean and its cover attached. Muffler and spark arrester service is in the manual too, with its own torque figures, and that procedure is not repeated here; follow the manual for it.
What the manual covers, and what it does not
The document attached to this listing is written for two machines, headed 350BT and 350BF, and its technical data table has one column for each. The 350BT column is the one that applies here; the 350BF column differs, including a weight of 22.9 pounds against the 350BT's 22.5, so do not read across the table.
English occupies pages 2 to 17 of that 56-page file, with Spanish and French sections after it. The document reference is 1246-007, which is the number to quote if you ask Husqvarna or a dealer about the manual.
The listing states a two-year warranty and offers, in its description, to extend that to five years if you buy 96 fluid ounces of pre-mixed fuel at the same time. Neither the warranty PDF on this listing nor Husqvarna's linked warranty page was read for this record, so both terms are the listing's alone; confirm them with Husqvarna.
Check the current listing
Confirm the model, included parts and availability before ordering.
Primary sources
- Husqvarna 350BT product page and specifications
- Husqvarna 350BT / 350BF operator's manual 1246-007 (listing-supplied copy)
Primary sources checked .
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