Professional Series™ 775

7.75 Gross Torque

The best all-around mowing experience. Professional Series™ lawn mower engines combine professional-grade power and performance with the homeowner-friendly convenience and ease of use. Strong, quiet and durable, these push mower engines come standard with the ReadyStart® starting system, so you can give your lawn a class-A cut with ease.

  • Advanced Formula Fuel Treatment and Stabilizer | Briggs and Stratton

    Safeguards engines against ethanol damage and maintains fuel stability for up to 3 years.

    See the full benefits of Advanced Formula Fuel Treatment & Stabilizer.

  • Avoid Lawn Mower Engine Damage

    Look Before you pump fuel into your lawn mower and help avoid engine damage. Do not use any fuel containing greater than 10 percent ethanol (E10) in the engine on your outdoor power equipment.

  • Briggs & Stratton OHV Engine Design
    Overhead Valve (OHV) Engine Design

    OHV engines run cooler and cleaner for better fuel economy and longer engine life.

  • Super Lo-Tone Engine Muffler

    The quietest lawn mowing experience possible.

  • Have a question? Search our FAQs to find answers related to model specifications, routine maintenance, repair or troubleshooting. Search FAQs »

  • Find genuine Briggs & Stratton repair and/or maintenance parts for your engine or outdoor power equipment to ensure future performance. Purchase Parts »

Torque* 7.75
Engine Displacement (cc) 175
Number of Cylinders Single
Engine Configuration Vertical Shaft
Engine Technology OHV
Length (in) 15.6
Width (in) 12.8
Height (in) 9.4
Weight (lbs) 24.5
Bore (in) 2.6
Stroke (in) 2.0
Engine Fuel Gasoline
Fuel Tank Capacity (gallons) 0.3
Lubrication System Dura-Lube Splash Lubrication
Oil Capacity (oz) 18
Oil Filter Optional
Starter Recoil, Electric Start Optional
Air Filter Dual-Sealing Commercial-Grade Air Cleaner
Muffler Super Lo-Tone™
Fuel Shutoff Valve Optional
Certified Power Rating

*All power levels are stated gross horsepower at 3600 rpm per SAE J1940 as rated by Briggs & Stratton.

*All power levels are stated gross torque at 2600 rpm per SAE J1940 as rated by Briggs & Stratton.

Professional Series™ 775 is rated 1.913 out of 5 by 23.
Rated 5 out of 5 by from Very good engine I have this engine on a craftsman 2700 psi pressure washer. It has been an excellent engine. Always starts whether it is hot or cold. The most I have pulled it to start it is three times and that's after winter. I have ran 12 tanks of fuel through it with no issues. I run premium fuel in it just like all small engines. Overall great engine just as reliable as I expected from Briggs and Stratton.
Date published: 2015-06-23
Rated 1 out of 5 by from High Maintenance Engine I have had Briggs engines, Stihl equipment, and lawn boys...this is the first that I had an engine that is so difficult to start, or keep running.
Date published: 2015-05-10
Rated 1 out of 5 by from Nothing but problems. Have this on a Husqvarna mower. Constantly floods to where I have to remove the spark plug and let the gas drain out or it won't "Pull start". Local authorized repair shop says it is the carburetor and that isn't covered by a warranty. I haven't had this mower a year and so far it is leaving a bad impression of both Husqvarna and Briggs.
Date published: 2014-07-21
Rated 1 out of 5 by from Ready start system - does not start. I love B&S engines but the "ready start" doesn't work, I can barely start it cold, its almost impossible hot, pull and pull until my arm hurts and there is no way to choke it or prime it. I have to pull it at least 40 times to get it to start and usually have to dump gas into the carburetor. Very unhappy customer. I hope B&S makes a conversion kit to add a primer bulb.
Date published: 2014-07-13
Rated 1 out of 5 by from Readstart is a Bad Idea I now have 3 readystart powered tools, 2 lawnmowers and a power washer and I don't know what to do. When they won't start, which is often, there is no way to control the conditions. No choke, no throttle, nothing. I've always favored B&S engines because they started so much better than others. Now their the worst on the market. Monday I am going to talk to a small engine mechanic I know and see if these can be modified by adding a choke and throttle. If not, then I guess I have to get rid of them because my heart can't take the frustration and physical exhaustion of cranking on these engines for an hour just to start them. Oh! and by the way, every sympton on this forum I have experienced. The worst being not able to start them when they are hot.Ken
Date published: 2012-09-29
Rated 1 out of 5 by from Won't start! Was very happy to get my Troy Bilt pressure washer with this easy start engine. I grew up with B&S and have always swore by their engines for reliability and durability....until now. First time I used it everything started up and ran great. Finished the job and stored it for a couple of months. Yes, I did follow the manual for the storage. After a couple of months it won't start. I even changed out the fuel checked the oil, plug and still nothing. I've read lots of other posts on the net where other people are experiencing the same as me. I think B&S have a lemon here. At least in the easy start model. I have the same engine on my mower and no problems, but it's not an easy start model.
Date published: 2012-09-24
Rated 5 out of 5 by from Great engine I have this engine on a Craftsman 2700 PSI pressure washer. I bought it in 2010 and have used it allot since then. The engine must have about 70 hours on it total. I use it for cleaning my walkways, drive way and my siding. My house gets very bad algae growth all over the back deck, patio and back portion of the house. It takes me about two days to clean everything off. In that time I probably go through about 6 tanks of fuel. (I used to have a cleaning company do the work but they always managed to damage the brick work on my patio). This engine has never given me any trouble what so ever. Mine is sometimes hard to start when its hot but its not all the time. As it gotten more hours on it, its actually become less and less of a problem. I only run 89 octane in all my small 4 cycle engines. I find that 89 octane seems to run cleaner. Since I've started using 89 octane I've noticed the spark plugs on my engines don't have as much carbon build up on them. With all my small 4 cycle engines I change the oil, spark plug and air filter at the start of the season. I also use fuel stabilizer to prevent the gas from going bad. I know how much ethanol fuel likes to absorb water and ruin rubber and aluminum parts. So if I had the choice I'd buy another pressure washer with this engine again. For me it runs great.
Date published: 2012-04-17
Rated 1 out of 5 by from Will not start hot As the guy said in previous review, I have this engine on a Troy-Bilt pressure washer. I have had it for two years. From the first day once the pressure washer has been used and the engine is turned off, to fuel , take a rest or whatever, it will not re start until it has completely cooled off to air temperature. This is unacceptable. You can pull till you have a heart attack and its not going to start till its cold again. I have a electric pressure washer I use if the job is going to require turning off the engine for any reason. Love to know why it will not start hot. Found many similar complaints on the Internet about B&S motors with Ready-Start.
Date published: 2012-03-10
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