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With the valve gaps set correctly, and the spark plug removed for easier engine turning, turn the engine by hand while watching the intake valve. Just before TDC compression stroke you should see the intake valve get bumped open slightly. That is the compression release. If no bump then time...

In this case I don't think there is a single fuse or fuse pin that isn't corroded to the point that all of them are probably causing issues. My first order of business is to rebuild the fuse block. And that maybe all that is needed to repair the no start issue.

I have been seeing cannot load this page errors, and slow to load pages.

Once upon a time there were typically .010,.020,.030 oversize pistons. Most mower engine manufacturers have dropped the .010 and .030 oversize pistons sizes, which leaves the ..020 as the only oversize option available. And in some cases there were never any oversize pistons offered. Demand...

Shuts down as if you turn off the key doesn't sound like fuel issue to me. Loss of fuel issue normally will spit and sputter a few seconds before actually dying. Issue to me thinks more of a loss of spark issue. Does this engine have the oil pressure switch which could be faulting out and...

Lets start with the actual 7 digit model number from the model number tag since there are 17 different models of the IS500Z. And then also get the model number info off of the valve cover. I suspect the run and or start issue is related to the battery/charging system. Also if it is the...

Does anybody have the wiring schematic for the gator XUV 620i. Had a customer bring me one that will not start after fuel pump replacement and then proceded to disassemble the fuse block. An this guy was a JD tech.

Will need more clarification since the 4622 brings up Zero turns not lawn tractor style mowers. And if this is a Z turn than it would have 2 hydro's not one, which would lead to more of a belt issue than a tranny issue. So we will need the actual model and serial number from the mower tag to...

Looks like it supercedes to 599568901

Worked on a mower with the same engine as yours that would run for about 5 minutes and then die like running out of gas. Clean carb, or in some cases drain carb and would run another 5 minutes. Ended up being a faulty spark plug. So that may be something that you may want to check and replace.

Appears it should be a 7/16-20 tapped 1 inch deep

See if this is relative to your issue https://www.manualslib.com/manual/2314540/Kohler-7000-Series.html

I suspect both issues are related. If the key is in the run position do you have battery voltage at the voltage regulator. If standard 15 amp regulator The center pin will be the B+. I am thinking you don't have voltage to the regulator which is also effecting the voltage to the fuel...

The thread with the fuse issue was answered in 2019 and the wiring diagram for that issue was post 18. And the thread was brought back from the dead a few days ago with a repair of a regulator grounding issue from member @JNaughton using the testing that I posted in 2019.

Item number 730D https://www.partstree.com/models/9p602-0023-f1-briggs-stratton-vertical-engine/blower-housing-rewind-starter-2/ This may also help understand what is going on. The said in the service bulletin that parts for both are available, but I suspect the previous date code parts have...

Emissions vacuum line that connects to the rollover valve on top of the fuel tank. If you don't have those items then ignore the barb.

The issue is they are showing the starter for the use after 140601 but nothing for the before numbers. And the new series starte doesn't fit the old series blowing housing. I suspect the only way to get around it would be to order the starter/blower housing kit.

The service manual for the single cylinder Intek says to use valve guide lube on the head bolts

Yes you can always go heavier gauge. Mowers tend to be made on the very edge of acceptable wiring to make them function when new, but add corrosion and those almost too small wires can create issues.

Husqvarna limits their dealers to 3 per year shipped directly from them. And MTD at one time supplied the adjustment tools to their dealers, but stopped about 10 years ago citing EPA warnings about since their dealers didn't have the proper testing equipment to maintain emissions compliance...

Heck, even some of the OEM's won't sell their authorized dealers the tools to adjust them.

Ran into this exact issue last year on new Kubota seat. Replacement seat was slightly different than the original and design wouldn't allow proper seat switch actiivation. For other issues sometimes people don't weigh enough to properly depress the seat.

I would assume they are referring to 0.8 mm which translates to 18 gauge.

Item 957 https://www.partstree.com/models/104m02-0010-f1-briggs-stratton-vertical-engine/exhaust-system-fuel-supply-7/ part number 84004416

Check out the John Deere freedom mulching deck. It has the toothed timing belt.

I kind of see that in my area. People think that they work on their own equipment so they could work on other people's equipment. And the two things don't come to reality. So I see people starting lawn mower repair shops in their garages, but within a couple years close up and move onto...

Idle speed seems fine to me. This engine most likely has a governored idle, so engine speed is being controlled by idle governor spring and governor system. The clunking could be a sticky issue with the electric clutch and tapping on the antirotate bracket. Or could be a drive belt/idler...

Model number info for the engine is most likely stamped into the side of the engine block on the side opposite the fuel tank and carb.

I have never seen a 9/16 spark plug thread. All spark plugs have been metric thread since 1934. I would suspect that you have the normal 14mm-1.25 that every small engine other than handheld uses. I don't think you have drawn enough dirt past where the welch plugs should be to cause that...

Made by Kioti Most likely the same as the CS2510H And warranty would be handled by your local Bobcat dealer. So go see your local Bobcat or Kioti dealer.

https://www.partstree.com/models/31h777-0202-e1-briggs-stratton-vertical-engine/camshaft-crankshaft-cylinder-operator-s-manual-piston-rings-connecting-rod-warning-label-2/ Item 9 on this diagram, but be aware this is only used before code date 07071900. After that date it uses RTV sealant.

https://badboycountry.com/

Fuel breakdown on previous drawing Which is the 3 way valve but the parts diagram shows the label for the 2 way valve And more interesting is the left tank is top draw and the right tank is bottom draw, so no way to draw from both tanks with a single on/off valve

Unless the blades are gear drive or clocked with a timing belt the blades will not stay clocked and will collide

VOM=Volt Ohm Meter aka multimeter

The belt and pulleys should be spinning anytime the engine is running and the brake is released. Your brake picture looks like the brake pedal is pushed down.

From the symptoms the problem is still in the carb, or you have a flow issue coming out of the tank/fuel line, or something stuck in the fuel inlet on the carb causing issues. The engine uses the 799584 carb since your build date is before 07/01/18

That basically confirms that the ignition module is heat failing. And would require the replacement of the ignition module

Ignition would be my first guess, but will need to confirm loss of spark after engine dies with a open gap spark tester, not a blink style tester. Need possible could be a failing fuel solenoid on bottom of carb, but that is not as common but does happen.

What is it actually doing to make you think it is loosing compression.

Need to get the model information from the transmission tag. The fan and pulley would be a tuff-torq part not Husqvarna

Engine has been replaced also. Only 38 inch deck made in 1994 or 1995 had a flat head 28m707 engine.

Get the model type and code from the Briggs engine. Sometimes those numbers can be used to narrow down and reference a few models that was built that year

Banging clutch/brake pedal normally points to a chuck of the belt missing, and will change the tension on the belt as it goes around the pulleys causing the pedal to pulsate.

No air vane spring because there is no air vane. This engines uses a mechanical governor not air vane governor. And you won't see much movement in the carb throttle by moving the throttle from fast to slow without the engine running. Spring will hold the throttle open without counteracting...

I normally jack up the rear wheels and put blocks under them to hold the mower up to give clearance without the jack being in the way. The pto clutch will have to come off which may some special methods to keep the engine from turning while removing the clutch bolt from the crankshaft or the...

Or the mower because the battery was obsolete before the mower was even purchased.

Hydrostat belt either came off or broke. Need to look up under the rear of the mower, above the deck belt

Deck drive belt should come off the left side of the center spindle pulley, go to the right of the flat pulley behind the center spindle and to the left of the V pulley at the rear of the deck.. then back to the PTO engine pulley and back to the right side of the center spindle pulley

If this is the setup I think it is Snapper has a very similar mower and the swivel fitting for the hydraulic hose going to the cylinder is on the hydraulic steering box in the lower console area. This is not a hose you want to be experimenting on. That ORB fitting on the steering box is...