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Try a governor static adjustment. loosen the clamp on the governor arm, hold the throttle all the way open, rotate the governor arm max CCW and tighten the clamp. Compression test may show the issue.

The red filters are for gravity fed fuel systems. I, personally, install the white\clear paper filters on all engines I work on. Both gravity and fuel pump operated. Never had a fuel related problem since.

Here is a Walbro carb available on Amazon. I have ordered one to try soon: https://www.amazon.com/dp/B07XD8JSJZ?psc=1&ref=ppx_yo2ov_dt_b_product_details

One thing I have found out with the electrics, you don't clean the deck undersides with a hose as done with a gas unit. The person that gave me mine, had quickly power washed the underside and let it sit for over a week before using. It ran for about 10 mins and died.

Make sure you put in for a refund, or replacement, of that crap carb. All seller I have dealt with will provide one, or the other, and probably won't want the carb back as there's gas in it. They know what they're selling.

I had a 2 year old Kobalt, same mower type similar problem. They have a 3 year warranty. I contacted the local store and they replaced it with a new, in the box, updated model. No receipt, no questions asked. Don't mention where\how you got this unit. They didn't ask for that info.

Can you syphon gas out of the line, from the tank, at the fuel inlet to the pump? Could the pickup tube be sucking air?

pretty cheap on Amazon, use them with a pin vise. This is the set I have. It's easier to find drill size. Just slide the jet down on bits...

On other engines, I have opened the main jet, a little at a time, with micro drills until it ran correctly. Go a small amount to see if it affects the richness.

Have you tried to adjust the mixture screws? Running lean.

Used the tach, again, today, and it settled down to a steady number. Kohler Courage 18 hp single engine, set max at 3600 and min at 1600 rpm.

What was the original question?

I have purchased a tach that is similar to the one in the video, but much cheaper. It instructs to hold close to the spark plug wire to measure. It is very erratic. Is this normal or too cheap of unit?

Could you not swap plugs between the two? I would turn the engine, with the long plug, over by hand the first time to make sure the piston does not hit the plug. Or, you could measure the distance from the top of the piston to the top of the spark plug hole to see if there's a difference. If...

Bend the kill switch arm away from the metal bracket when in the run position. It should then contact the other bracket point in the off position.

That's why I bought used

Try jumping the battery positive directly to the starter red terminal. If it always turns well, it may be the solinoid or bad connection somewhere. If it still struggles, try will no spaerk plug. should always trun fast. I have seen very many starters that are tight due to bad internal...

Service manual- https://services.generaltransmissions.com/wp-content/uploads/pdfs/service-manuals/39008-D1%20RS800%20P.pdf Seal pn GT41857 for axel shafts, did not see a fill procedure, but belt adjustment may help. Check out troubleshooting guide-...

I would not go a residential model for my property. Too rough and hilly. I have had to repair and scrap low end TT and HT units.

I have a Commercial Cub Cadet with the ZT-2800 trans units. Keep the filters and oil changed and they have not given me a spec of problems since 2014 doing hill yards. May not be as good as some of the the brands, but in that price point. i have no complaints. Knock on wood, not a single...

Take it to auto parts store or local county transfer facilities for recycle.

This brings up a question I've had. What are typical jet sizes for Kohler and Briggs single lung engines. I have carbs that all look the same but some will surge and need the jet opened. I increase till it levels out, but would like to know what good sizes are.

Use a picture compression app.

Firstly, in the pic, the red cable is not tight to the post. Second, you indicated you tried to measure continuity, of the cables to ground, with the battery connected. That's a no-no as there is voltage present. an Ohm Meter supplies its own voltage to make measurements. Remove the cables...

If you have put the battery directly across the starter and it does not turn, it suggests you have a very tight component. You have swapped the starter so that could be eliminated. Can you turn the engine 360 degrees by hand? Remove the spark plug and try this again. If freely turns, then...

One thing about jump boxes, many of the smaller size, high amperage, units will not jump a dead battery. There must be a minimum amount of charge in the battery for it to add to. Some will have a 'boost' feature, but I find it only works sometimes. The larger jump packs, with the air pump...

I had both the blade and the blower. The blower is the way to go, if you can find an affordable one. The blade can beat the hell out of the machine if you're not experienced and somewhat gentle. I have stood the machine up on the front wheels many times when the blade grabs. The same can be...

Indoors, or outdoors, just don't want to let the battery freeze. Indoors on charge could cause out-gassing. Make sure area is ventilated.

What you may be looking at, in the near future, is one of those cheap, knock-off, switches failing again. Now, which one do you replace, or do both again? Most of us replace things one at a time. Also, by replacing those items, you may have just corrected a failed connection problem. Not to...

Just changed oil on a generator and had same problem. Said 1.6qts which way over filled it. Drained some out and it's been fine. Figured just didn't get it all out and the spec was for dry engine.

Post a pic of the fuel solenoid. May have a suggestion. It sounds like the replacement carbs are running too lean. Not enough gas getting through them. Check\replace everything from the carb to the fuel tank and run without cap on the tank. If rthat doesn't help, check the valve lash. If...

What oil is in it. You may want to use a 5w30 synthetic oil so the engine turns over easier in the cold along with the other suggestions.

Shows spindle and components, but I can't see the part number. This is the closest I could find and reasonably priced. Says 'fits ZF'...

Snapper site spindle: https://www.jackssmallengines.com/jacks-parts-lookup/manufacturer/snapper-pro/snapper-pro/attachment-accessories/mower-decks/73-mower-decks/7084278-zf7301m-73-mower-deck-series-0/spindle-group

People pay extra for lines in their lawn

Turn CCW

To check the connectors, slide the plug off the ign sw enough so you can see the terminals. Check the continuity between the wire side of the plug and the terminal it connects to. Should be 0 ohms. On inline connectors. push your probes into the connections from each side and verify 0 ohms...

Take the air filter out and you should see the hole of the carb. Pour a thimble amount of gas in it and pull the rip cord. If it attempts to start add a little more and try it again. If it will run for a second or two then it tells you you're not getting fuel through the carb. It may be a...

Did you try putting it back together and starting it. You have spark, shoot in gas and there is air. That's all it takes.

Did it run? If not shoot some carb cleaner, brake cleaner or a little gas in the carb and see what happens.

Doesn't matter as it's not going to start. Remove the plug and reinsert it into the plug wire. Touch the body of the plug to somewhere to a metal part of the engine and turn the key. You should see the spark jump on the tip of the plug. If it doesn't try another location to touch it to. If...

Pull the fuel solenoid and clip the tip off. Does it keep running if you shoot carb cleaner in the carb throat?

Sorry StarTech for duplicating your post, I didn't see it.

There is no gasket. Clean all the old RTV off and use a oil resistant RTV to seal it. Only put a 1\6-1\8" bead around the casting and around the bolt holes. Mate the parts while still wet. Torque to 1\2 spec in proper sequence, then to spec. I have attached the torque and sequence pages...

You didn't mention anything about fuel to the carb. I would start at the tank and see if any boogers are blocking the outlet hole. Clean the fuel shut off valve, change the filter and check flow from the pump with the carb side disconnected while you crank the engine. Remove the fuel solenoid...

This reminds me of how we used to check a 9v battery by putting it to our tongues. How do you check for 120\240 volts a-c?

I was wondering if the breather needed vacuum to operate and if the engine would not run correctly if the tube was not connected, but I have been running this engine with a rebuilt carb and no breather tube connected and it runs fine. The tube is cracked at the air cleaner elbow. Should I fix?

I disassembled the carb and everything is correct, but it surging even at low speeds now. I rebuilt another Nikki using used parts and it runs well. Let it run at high speed for 15 mins and still good. I agree, I hate these carbs. I tried to convert a Walbro, but the throttle brackets are...

Will have to check the jet. I don't know which one I put in. But, again, if the jet is wrong, I would think it would run crappy all the time not just when it gets hot. I wondering how the carb would fail with temperature. Unless, the mixture is good only when cool.

Yes, but I don't know how that would cause it to run rich.