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Did you remove all the plugs when you checked the compression after the engine was running??

Did you check the gas flow from the tank to the fuel pump? Should be a good steady stream. Does it improve if you loosen your gas cap?

Yes, remove all spark plugs when doing compression as well as full throttle. The starter is fighting the compression of the other 3 cylinders. You want it spinning as freely as possible for checking compression.

Homeowner use: I would go with the RYOBI brand. Have had great success with ours over 18yrs nothing has broken and we have put them thru some hard work. Batteries haven't been an issue either. We have drills, drivers, hammer drill, 7" skill saw, recip saw as well as mulitple yard tools...

Which invariably will happen :)

Compression test and since you had the valve covers off, should be checking the clearances and adjusting if necessary.

https://service.mtdproducts.com/professionalShopManuals/Tractors.html

Sounds like BS to me. Mufflers should be able to be removed and re-installed without issues unless of course the internal threads are hooped.

True, but most batteries are dated at mfg. Ryobi has mailed me batteries under warranty. Might also be cheaper to have them rebuilt locally as opposed to replaced.

What kind of warranty are on these batteries, just curious

You will still need to buy & install new bushings for the wheels after the spindles are welded

Thank you StarTech !

Kohler XT6.75 PN: PH-XT675-2044 SN:4334903388 HUAYI Corp Carb # 1405368 I've been searching for a Carb kit for this engine and none available. All I require is the 2 o-rings that are on the Pilot jet. Does one of you wizards know the size of these o-rings or could I purchase o-rings for...

But the cable was working fine before it broke? So why not go with it again.

Usually the cable sheath itself has a number imprinted on it. You can use that number to order a new cable.

Best way to cook your engine

9:05 min

2800rpm looks to be the sweet spot

It's 13yr old now, I would sharpen and balance the blade and not raise it more than 2900rpm. Sharp/balanced blades make all the difference. Running with an unbalanced blade just going to damage the engine. New blades are pretty cheap.

You can use the existing fuel filter if you think it's good, it will get flushed. No I can't. You can let them sit for a couple of hours and it will separate.

Why are you wanting to up the rpm? Do you think it's not mowing well enough?

Hook up all your hoses, change the filter if you want. Keep your fuel shut off in off, put good fuel in the tank. Drop the bowl off the carb and empty and clean. Leave the bowl off and turn your fuel on till you get a good stream of fresh fuel coming through the carb. Shut off the fuel, put...

If you go back to message #9 you will see that Rivets has posted links to Walbro carb info, can't remember if there was Zama stuff there also.

Just love Steve, he knows his stuff!

Juntjoo: I honestly don't know why Rivets is wasting his time with you. Your arrogance and ignorance is deplorable on a site meant to help people. This is not a site to educate you in small engine repair, it's for people that either have some mechanical knowledge or when they find out that...

Awesome reference reading Rivets! Keeping all those PDF's for future reference. I normally only piddle around with 4 strokes but I always need refresher on the 2 stroke carbs. Thanks!

Make sure engine is cold when adjusting valves

https://www.engine-specs.net/kawasaki/fx801v.html

University of YouTube might be for you. Search "how does a carburetor work"

The throttle plate side which is what you see in your bottom pic. Top 3 pictures show the choke plate

The 2 on the left hand side look like there is an airbleed port below the mounting hole on the left. Also be aware of venturi size as well as jetting.

Link spring C is what keeps throttle rod from falling out.

Just disconnect your battery then and put the tender on.

Check your main jet again (float bowl bolt) and see if it's plugged up again.

Watch and follow Steve's instructions.

Anywhere between the tank and the fuel filter.

Have you checked that you have good fuel delivery from the tank? Pull the fuel line off at the carburetor and make sure fuel is coming out of the hose at a good rate. Follow Rivets instructions and rebuild the carb if you have good fuel flow from the tank, otherwise, remedy the restriction in...

You can handle this, adjusting the valves is a 30 min job for beginners. I wouldn't get carried away with Grumpyunk's suggestion just yet, just set your clearances to .007". Make sure your valve cover gasket is in good condition or better yet replace it so you don't end up with oil leaks.

If you are reusing an original cylinder you absolutely hone before replacing rings otherwise they will not seat. Also, have you staggered the gap on the rings 120° apart? Did you check the end gap of the rings before installation? New ring end gap should be .008" to .014"

https://www.partstree.com/models/lt-23420-2690826-snapper-lt125-series-42-lawn-tractor-23hp/42-mower-deck-belt-idler-arm-hitch-group-1/

Have you checked the fuel pump output? Backfiring can be a lean issue.

Camshaft problems with 2023 honda mowers. Compression release fault with camshaft.

2016 Husvarna with B&S engine. "Just add oil" when required. I just sucked the oil out and replaced every year.

Is that float on upside down?

The brass piece is the seat. It's built in to the carburetor. You won't necessarily use all the parts in a carb kit, they usually cover a few models.

Did you actually disassemble the carburetor fully and clean the jets and passages with carb cleaner?

.008 - .024" Coil distance from flywheel magnet. You are bang on in the middle. Good job!