Carburetor Removal, Cleaning, & Install | Briggs & Stratton 775EX Series - Husqvarna HU775H
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- เผยแพร่เมื่อ 3 ต.ค. 2024
- I show the process for removing, cleaning, and re-installing the carburetor on a Briggs and Stratton 775EX Series engine. This one is on a Husqvarna HU775H, but could possibly be used on multiple different brands as I've seen Craftsman and Troy-Bilt use these engines labeled as "Professional Series".
remove air cleaner, governor spring, governor linkage, remove carburetor, disassemble carburetor, clean carburetor, assemble carburetor, install carburetor, install air cleaner
#smallengine #smallenginerepair #carburetor #briggsandstratton
Got a hand me down, non-starting mower from a neighbor moving out. Runs good now! Thanks!
That lawn mower looked like it been through 5 tornadoes and all it needed was the carb cleaned. Awesome!
Great video fixed my lawnmower in about an hour and a half with the trip to get the carburetor cleaner also I changed the spark plug for good measure and it started right up spent $16 total
Thanks! Glad it helped out
Nice, your video angles in this video were very good. One thing to mention is the upper bowl gasket and that it stuck to the carb. Sometimes, it sticks to the bowl itself. Again, great video. Not even a puff of smoke from the exhaust. I'd say that engine is good.
great tip addition, thanks!
Best Briggs engine on a push mower nowadays
Nice job!!👍
Nice details on the 775ex. I usually just put on a new carb from e bay. You can get a new carb, gaskets, hose, clamps and filter with a pre-filter in a complete kit for less than twenty bucks. 👍
thanks! and good tip!
Huge thank you. Fixed me up step by step and I'm back in business.
glad it helped!
Needs a good cleaning with degreaser, super clean. Replace the gas cap and finish service by checking blade and under deck too.
Thanks for making this video. I bought one of these mowers new around 2011. My sons and I have put so many hours on it it isn't even funny. The thing runs great.
I recently checked the air filter and found that the prefilter was torn, so I decided to replace it. Long story short, Amazon sent me a $20 kit that included a new filter, prefilter, carburetor, hose, clamps, two fuel filters, shut-off valve, gaskets, spark plug, etc. So I installed the new carb. I found that the auto-choke arm had become detached, so I fastened that back. I was a little unsure how to configure the springs, so I appreciate your showing this clearly around 12:00 or so.
Questions about gaskets: The kit I received had three flat gaskets. One fits on the carb intake (where fuel enters). One fits on the discharge side. I'm not sure if it goes between the carb and the silver plate that holds the spring or between that plate and the engine. Looked to me like the O-ring sealed that latter interface, so I put the gasket upstream of the silver plate. I have no idea where the third gasket goes or whether it's necessary. If you can shed light on this, please do.
Thanks again for a terrific video.
Appreciate it!
For this specific mower the o-ring made the seal between the intake block (which has the spring bracket) and the backside of the carb without the need for a paper gasket since the o-ring sealed against the machined surface on the carb. It’s possible there is a gasket on the other side of that block between it and the aluminum head, and I just didn’t see it because it stayed on the engine when I pulled the carb. But to your question, that would explain a second gasket but not a third.
I will say that the aftermarket carb kits will sometimes have ~125% of the parts you need for your exact configuration so they can market a single kit to span multiple applications and different model years where Briggs may have changed the gasket configurations along the way. That’s what I would guess is the situation here.
@@BackyardRepairs I agree that the kit probably has some superfluous parts. I did not see an old gasket on the discharge side of the carb when I disassembled it, so I don't think it's strictly necessary. Then again, the old gasket on the intake side was worm to the point that I initially didn't recognize it as a gasket; it looked like dirt. I scraped off the remnants and put the new gasket on. Thanks again for your guidance.
Have the same mower its power house with that engine worth putting money into it .
Carb yes but overhaul no
I recently was given a 2012 HU775 that had been stored in a climate controlled storage unit that was used twice when new. I cleaned out the gas tank, carb bowl, carb jets and put in new oil. It runs for a bit, not at full rpm, though. Upon further inspection, I noticed the breater tube was cracked. Can that cause a mower to now run efficiently? It's literally a brand new mower, so it has to be something simple. Thanks!
hey thanks for commenting. I think a cracked breather tube could contribute to the issue making an air leak, but it sounds more like a governor issue since you stated it's not getting to full RPM. I would double check you hooked all the linkages and springs back up correctly. Depending on the tube crack you could likely tape it temporarily to test and rule that out as well.
@BackyardRepairs Thanks, I got it to start before I cleaned the carb. Unless the linkage was hooked up wrong initially, I put it back where it was. I zip tied the breather where it slips on the air filter housing, and it still has the same issue. I ordered a new breather tube and will see if that does the trick.
Did you buy a gas cap yet? There's nothing online for a 775EX specifically. One for a 675 EXi, 725 EXi might fit but I'm not sure.
I ended up giving this to a neighbor after I got it running along with a list of part numbers for stuff it needed. I think the gas cap was Briggs p/n 799585.
I bought this lawnmower from a guy on Bahgdad….
The toro timemaster got these motors!!
I did not know that, thanks for sharing that info!
Hi,
I've got the same mower. Went through and cleaned the carb. Replaced the two gaskets at the top and bottom of the bowl. Now leaking gas which seems to be coming out from the venturi area. Any idea what could be the issue? Thanks in advance.
Hey, leaking from the Venturi sounds like the needle/float is stuck in the open position and letting the carb flood over. I’d prob take the carb back off to make sure debris isn’t keeping it open, but a quicker check would be to remove the bowl with the carb still installed and manually move the float up and down to make sure it’s stopping fuel flow when in the up position.
Thank you for the quick response. I appreciate it! I will try your suggestions
Buenas noches me podrias ayudar con un contacto para conseguir el mando de la traccion de ese mismo modelo me urge gracias
Hopefully Google translated this correctly for me lol.. Amazon or eBay are usually good sources for parts. You’ll need to type in your model number online, find a parts diagram and find the part numbers for what you’re looking for. Then go over to Amazon or eBay with that number to order it