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Hi StarTech, I despise people who want to tell me how "easy" a job is when it comes time to pay the bill. The worst ones come in proclaiming that they watched a "professional" on You Tube and it only took "10 minutes". What they fail to realize is that the video took over 4-hours to make when...

If this was a box store purchase, it is unlikely that it was test driven to verify proper operations. It needs to go to an actual dealer to have it corrected. The box stores usually have an area dealer "flunky" perform the PDI setups. Sad but true, they just sell the product.

I think it is a matter of matching up the model and type information off the two engines to determine if they are compatible. Mower manufacturers do not always have the same engines options. Basic displacement might be the same, but that is about it.

Many of the Lithium-ion battery powered mowers are still going strong after years of service. The trouble is, many of the batteries cost more to replace than just buying a new mower. Aside from that, all batteries have a limited number of charge cycles before they are depleted. The level of...

Don't overlook the spark plug. Also, cheap aftermarket replacement carburetors are a crap shoot, so you may have to rebuild the original or try another one and don't go for the cheapest one you can find. Typically, Parts Tree and Jack's small engine has quality parts. You will need all of your...

Seems that some folks went off on a tangent about spindles but missed the fact that you are trying to engage the deck at idle or near idle RPM. Don't get me wrong, checking spindles is very important and they do have issues, but noise would be obvious when the deck was run for any length of time.

Hi Skippydiesel, Yep, the calendar warranty game. To add insult to injury the customer has also been sold and aftermarket "extended" warranty which is practically worthless. Back in the $1.99 a quart generic SAE 30 or 10W-30 days, people seemed to be more concerned with frequent oil changes on...

They were designed to be "customer friendly", but I have seen them cost owners an engine a few times. After a few years of oil changes, they will pop open on their own. They are a faulty design just by being made out of plastic. I recommend you look into getting a drain hose style with a steel...

Hi kenneth2, Yes, the regulator has to have ground wire run to a bolt to a metal surface of the engine to be effective. Attach the other end to one of the regulator mount bolts. Normally it only takes a short wire to one of the fan shroud/top cover bolts.

Hello S, It is not a matter of waiting until you hear any noise or experience a breakdown. The valve adjustment is to keep the engine running efficiently and avoiding major damage due to a push rod jumping and getting pinned at the edge of the rocker saddle which bends them. I usually...

Hello MParr, You are assuming that people actually have or read the manuals and the dealer provided them. Many end up on a shelf or in a drawer for 20+ years then they happen to find them long after the mower/rider is gone. Many sell them at yard sales or on Ebay to make a couple of...

Hi N, I am a semi- retired mechanical technician and have slowly become the "Mr. Fix It" around my area thanks to the reckless economy.

Hello B, First of all, don't engage the PTO at 1/4 throttle. That will cause a "load stall" on many different riders. The engine requires higher RPM to overcome the deck rotational starting load to get everything moving. Also, the higher engine RPM provides more charging system voltage and...

Hi Forest#2, A common conversion is usually switching out a tired 8HP for a newer 10HP or even a 12HP. I don't think going the other direction is an issue. The crank PTO end dimensions were normally the same. A critical factor in the swap is making sure the mount holes are the same, so the...

That appear to be a front I-beam axle fulcrum lift design. It is adjustable for different axle widths. This is a basic deck blade change jack/ The mower must have the rear wheels blocked to prevent rolling away (I think), then the square saddles are lined up to the front axle yoke. One foot is...

Thanks StarTech, The diagram that ILENGINE post was hard for me to read without being able to expand the view. I studied again a little harder with a magnifying glass to see the other fuses you mentioned.

Hello B, When you post be sure to add the Product label information along with engine product label. I for one hate to take wild guesses with minimal information. There were many different Z421 mowers produced, and they are not all the same. A friend owning a lawncare business is a far cry...

Hello B, Trying to replace a whole harness is overkill. Most of the time it only requires some simple repairs such as a wire connection or a fuse and fuse holder that can be replaced by itself. You need to inspect and confirm the issue before blindly ordering and parts. According to the...

Hello M, If you are making a habit of running your mower dry for Winter storage, don't. All that does is dry out the needle and seat and create left over chalky fuel deposits in the carburetor as the remaining fuel evaporates. Keep the tank full but use a mid-grade E-10 with Ethanol shield...

Hello B, I have replaced quite a few main fuse holders for the problem you described. The next suspect is the ignition switch but be careful to get the correct one. Each pin has a specific letter stamped into it or on the housing. Just because they might look the same, they are not. There...

Hi TimS, Make a new posting and provide the product label information for the rider. Does anyone have the owner's manual for the rider? Some manuals have adjustment procedures.

Thanks for the update and the fix sano888.

The large cover that surrounds the too fan screen and goes from one side to the other. Many were red, but some models had black paint according to how the order for the particular brand they were installed on. The actual muffler and the head pipes were usually separate according to the rider...

There should be a full series of numbers stamped in the side of the upper fan shroud.

I cannot say that I have ever seen a 42-inch cut Murray with a bagger unit. I'm sure something could be adapted along with a set of high lift blades that would work. Murray stopped production around 2004, and the brand was sold to Briggs and Stratton Inc.

Will it crank back up or is it locked? The description sounds like catastrophic engine failure.

Hello NW1, The first suspect is wrong belt or incorrect routing. If they are trying to turn slow, but not up to full speed, the deck pulley brake is badly grooved and no longer holding. Part #17 in the diagram...

Hello jes-in-sac, I know you are likely just making conversation but.... Don't hijack someone else's post like this it creates confusion with the original posting. Make a new posting if you require help.

You had the motor off for an overhaul? Was the crank drive pulley installed upside down. Not sure that is possible, but it is an idea.

Hello Mattmotors, Look up Jim Jackson with Jim's Fix It shop on You Tube. He has lots of useful videos on these riders and goes into great details about different repairs on a variety of models. The drive friction pulley has likely been modified from the original "soft start", but that can be...

Hello CB36266, The capitol letter (I) is always used when referring to yourself personally. (Use the shift key to make a capitol letter). The first letter of a word in a sentence is always a capitol letter. The small case (i) is used as part of a word. A period(.) is used at the end of a...

How many acres will it mow before requiring an overnight recharge? What is the rate of discharge with both deck motors and drive motor operating at set speeds under load for 10 minutes? What is the cost of the 36V battery? Sealed high RPM deck blade drive motors? Sealed main drive motor...

I recommend conventional 10W-30 for at least the first 50 hours of use to ensure complete break-in, then switch over to synthetic.

Look at the governor arm pull spring. It is operated by the mechanism the throttle cable is attached to. The cable mounts to the outside and the spring is attached on the other side (inside).

Hey look! It's a golf cart with a mower deck. Good for an acre or less of heavy grass cutting? Play the front nine holes, recharge overnight then play the back nine holes.

Hello Kieth, Well, that is very basic info, we actually need the model and serial number information off of the product label of the machine and the engine to look up how it is equipped and wired. They are not all built the same.

Any luck finding a drive pulley? Is this for a Kohler engine? Contact me at aghunt83041@ gmail.com I have a 1-1/8 drive pulley and possibly the electric PTO clutch as well.

Hello hlw49, Does it seem to run normal at high speed once started? Is the choke actually working? The primer is only made to purge excess air from the fuel lines and not to shoot fuel into the carburetor throat. This does favor like a bad carburetor check valve or a stiff pulse diaphragm...

Hi nbpt100, I support your determination and tenacity to see this project through. Most of us with any length of experience doing this kind of work sometimes take for granted that we were once in the same position... But times and economics have changed dramatically. Parts have become...

I recall the cast iron engine days of book specific head bolt torque values and "by the book" was the rule. When aluminum heads and blocks came out, the game changed due to dissimilar metals and a high coefficient of friction. Steel bolts and aluminum components have different rates of...

Sounds like another compression relief failure issue to me. Intek engines have a well-known history of this problem. B&S had these cams on backorder for a very long time. Hopefully they have caught up production. Do not order and aftermarket cam unless you like the practice of taking your...

Try pouring a half bottle of Isopropyl rubbing alcohol in each fuel tank and then drive it around constantly changing speed and direction to mix it really well with the existing fuel in the tank. I have corrected several cases of questionable fuel quality issues that way. Ethanol and Isopropyl...

That "whitish stuff" is mostly cast aluminum deteriorating from Ethanol fuel exposure. Ethanol fuel is hygroscopic because it draws in moisture from the air. Aluminum is a self-sacrificial metal that forms a white coating when exposed to moisture unless it has a high Nickel content. Carburetors...

The texture of the pan did not look familiar to me, that what aroused the curiosity. It is not a "tank liner", but a sealer that has been pumped into a very old ground storage tank. The appearance reminds me of Latex paint that someone has tried to mix with turpentine solvent... very messy...

Hi larryuno, I did not see you reply to HL earlier. Hold off on my suggestions until you can get the shifted bracket and frame problem resolved and everything is sound and straight. I did watch a couple of good videos about changing the fluid in these earlier, and there were some good...

I recall also using wheel chains when I had to mow my uncle's property years ago in Virginia. He had very little flat ground. Of course, all the old riders also had manual shift geared transmissions back then. This is shaping up to be an internal problem with your transmission. If it were a...

What container is this in? That my friend appears to be in-ground tank sealer that came in your fuel from an old gas station. Yes, this means you need a new tank or a good used one if you can find one. That is not a product of Ethanol. that is in-ground storage tank sealer. There is no solvent...

Pull the rear axle center caps off and look at axles shaft and keyway area. Make sure the axle did not shear the key when the wheel chain got caught up. Hopefully it did not tear up the rim and axle keyway area. Torque and momentum can do some damage. Why are you mowing with wheel chains on...

Hello blue262, First, are you using the correct spark plug and is it gapped correctly? I prefer to use Champion plugs on the older B&S engines like this. Gap at .030 feeler gauge Your description also favors a partially clogged main jet and Yost tube passages inside the carburetor. These are...

Hello Teostena, Welcome to the forum. We need the engine label information to determine what design the engine is. Kohler is just a brand. The rider manufacturer label information is also important so we can better assist you. Slow down, put the "parts cannon" aside for the moment. Work...