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Is that relay clicking when you turn the key on and off. If that relay doesn't actuate, it will not unground the ignition module. also the other relay won't activate which will prevent the start circuit from energizing the starter solenoid.

Did you clean the jets in the bowl nut. that is the most overlooked area on that style carb.

Do you have battery voltage at pin 85 with the violet wire. And does the black wire on pin 86 have a good ground.

Being a Briggs single cylinder intek engine I would suspect that you are at the beginning of a failing head gasket. Head gasket will burn through the area between the cylinder wall and the push rod cavity.

Hydrogear has always told their dealers such as myself that a pump failure will not damage a wheel motor, but a wheel motor failure will eat the pump. But something to keep in mind is would be hard to get the wheel motor properly flushed of debris from a previous pump failure to prevent...

Briggs list idle speed on that engine at 1750, but could be modified by Toro. Good chance that the top end has a good amount of wear. But something to keep in mind is parts and labor can start eating toward the price of a new complete engine very quickly. Rings list at $47 US for each set...

While sitting on the seat, turn on the igniton switch and pull the pto button, and you should hear the clutch engage with a load click. Also applying 12 volts to the clutch wires will also engage the clutch.

I have done some light grinding/repair work on the starts in some cases, but that star looks too far gone, and will require a replacement shaft. Just don't attempt to remove the spindle housing from the deck unless you want to replace the entire spindle because the mounting bolts will break...

Is it possible that the slope is causing you to lean off the seat in which is causing the seat swtich to temporarily release. On some mower it will kll the enigne when the seat switch is released on others it will do exactly what you describe.

OEM deck belt part number is 1716854SM. Looks like it should measure 90.4"

Most of the experience with CV transmissions is limited to the guys that work on ATV and SXS. Which for the majority of lawnmower guys is beyond their scope. It has been my experience with CV clutches that they either work or they don't and one that is not working correctly is easy to spot...

Correct

I am thinking either a bent pulley or contact damage. Need to check all the pulleys and any guides around those pulleys because something it either making light contact or you have a bent pulley.

398811 is correct for your engine and available. It is a direct fit. Don't need the points so if still installed don't connect the points wire just the kill wire.

The Vanguard with oil guard is a dry sump engine that holds 5 quarts of oil and can operate at a 45 degree angle.

Disconnect the kill wire from the coil and retest. If still no spark then dead coil. If you have spark, then the issue is with the kill wire or kill switch.

There are 2 issues at play here. One, the pto shouldn't be spinning and pulling on the wires. The anti-spin bracket is either missing or broken. And 2, the die after releasing the parking brake or engaging the pto points to a seat switch or associated wiring issue.

Need to retry spark with a gap style spark checker. The blink style spark testers can give a false positive. You could try removing the spark plug, connecting the wire and grounding the plug to the engine and cranking to check if the actual spark plug sparks.

Camshaft failure not common on V twin Briggs engines. I suspect that you didn't get the flywheel torqued properly after replacing the stator and you now have a sheared flywheel key.

Problem is most the time there is a left handed monkey wrench involved somewhere.

First lets check some model numbers. Not finding a 13A726JD060 Coming up with 13A726JD066. Also check DOM doesn't match the Serial number date of February 15, 2018. But if using the 066 model number appears to be the 7T84JUA MTD engine. The base of the air cleaner housing should have a...

Best estimate will be 2-4 hours.

The 77 522 21 short block posted by the OP used the 47 010 06 camshaft which includes ACR. So compression release is present

I deal with a lot of elderly customers without the means to bring their own mowers. I don't pickup or delivery smaller handheld products or pushmower size products, unless included with z turn or rider style mower pickup/delivery

You are right. Third party extended warranty companies can be brutal. Have to approve which shop does the work. Have to wait for the shop to diagnose the issue, and submit an estimate. Wait for third party to approve the estimate and in some cases ship the parts to dealer at no charge. And...

Bent crankshaft. Doesn't take much to create vibration. And I would recheck that flywheel key. Because doesn't have to be off much to effect runnability.

cubbyman. This time of year when all the shops are getting very backlogged and trying to get extended warranty on a box store item. Which by normal shop flow standards for most larger shops put you about a priority 6 repair. So around July time frame would be about right. I am a one man...

I would about confirm that the spline part is the wheel bushing that has come out and has seized to the shaft may have to apply some heat or maybe even grind the splined areas down to get them to release from the wheel height adjuster.

Some idiot thought it woud be a good idea to use the paper gaskets with the plastic intake manifold and was creating an air leak at the heads.

go to Amazon and do a search for tecumseh 632675b

My Tecumseh distributor doesn't show any in stock, but doesn't show them as NLA either. Found a couple on Amazon that appear to be OEM for what looks like a decent price.

The 500032C uses the 632675B bowl assembly The 500023B doesn't appear to be a correct number so may want to recheck that number. Those style carbs were never really designed to be disassembled and rebuild, Designed to be a remove and swap the bowl assembly without removing the carb body from...

That is the vector vlv carb Really need the actual model and spec number to confirm which bowl kit that carb used. some used bowls with different colored emulsion tubes. Further research shows it could be the 730637A bowl kit

Maybe partially, but it seems like lack of demand seems to coincide with companies doing financial restructuring. And that is across all brand manufacturers. And at one time all these companies that are claiming lack of demand gave up the market that is now filled by the sub-compacts. At one...

And for a few hundred more you can move into a BX1880 with rear cat 1 three point hitch, rear 540 pto and all the attachments at additional cost that are available plus loader, backhoe, and belly mower(all at the same time).

Was it lack of demand or part of the Briggs bankruptcy kill off the extra brands to say they are saving money but in reality just stripping the company of assets and getting ready to move on leaving what's left is tatters. Tractor style mowers are basically on the way out across all brands of...

Have worked on a generator that has 5% bypass when tested with a leakdown gauge, but compression gauge showed 5 psi. Have come across several out of the box Briggs push mower engines that had 30 psi before even being ran for the first time and that was the old L head engines.. So compression...

Some play would be normal due to how the rim is mounted on the axle will allow some movement as well as the snap ring on the differential end of the axle can have some play also. And unlike a vehicle the axles are just riding on bushings for bearings not tapered roller bearings.

Here is a picture of the typical washer under the governor gear used on your style engine, and the one I tend to see.

Other than a few brands such as Kubota the seat switch is not part of the start circuit. Only the parking brake, controls levers on z turns and the pto switch. The seat switch comes into play if you engage the pto, release the parking brake, or pull the direction levers inward to move the...

That spec number is actually the part number for the K301 short block. Kohler doesn't give compressio readings for that engine due to the operation of the ACR compression release.

This may sound like a dumb question. But since Kohler has made several 12 hp engines over the years which 12hp engine do you have. Model number helps alot.

I suspect you are looking at the wrong issue. All your symptoms point more to a issue with the seat switch.

If you removed the flywheel and checked/replaced the flywheel key, did you get flywheel retightened to proper torque. Otherwise it could of sheared the new key on first crank which will cause a no start, but have you thinking it is something else.

Having something wrapped around the blades shouldn't effect the engine turning over unless you forgot to disengage the deck and the engine is trying to turn the deck also.

Need to check for spark after the engine starts acting up to rule out an ignition module that is failing while hot.

The shaft wear can get to a point were the starter teeth will jam agaist the starter and potentially break either the starter shaft or the teeth on the ring gear.

Never used it but need to be careful especially on dosing, And make sure the additive is compatible with air cooled engines. I have seen some automotive additives that turned the 10w30 engine oil into #2 grease when used in air cooled engines.

That is just it. the true garden tractor line has been replaced with sub-compacts using cat 1 attachments instead of the old cat 0 garden tractor implements.

Demand didn't go down, the new garden tractor have names like JD 1025R and Kioti CS2210H and MF 1GC.23 and Kubota BX2380