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A few years ago, I bought a well used ZTR with a Confidant EZT750, a twin cylinder 27HP engine with EFI. IMO, that was the worst part of the mower. The mower had all of the features I was looking for (fabricated deck, serviceable hydros, etc), but it had that #%#@%% EFI. I know how to fix carbs...

I have a Cub Cadet Pro Z 154S with a Kohler Confidant EZT750-3011 (747cc, 27HP, EFI) engine. I believe the previous owner neglected it. At 385 hours, I found that the cooling fins were almost completely blocked. I cleaned them out, adjusted the valves, and did the typical year-end maintenance...

A few years ago, I bought a used Cub Cadet Pro Z 154S with a Kohler Confidant EZT750-3011 (747cc, 27HP, EFI) engine. I got it for a good price because it needed repairs. I did the repairs needed to get it into service, and used it for about a half season. It seemed to run well and cut well...

Recommend me a valve spring compressor. I need to do some work on my Kohler Confidant EZT750-3011 (747cc, 27HP, EFI) engine. While I have it on the bench, I'm going to do a valve job. I need a tool that will work with this engine. The best candidate I've found is this...

I have the above chainsaw. Last year, it was hard to start all the time, so I rebuilt the carburetor with an OEM rebuild kit. It then became easy to start cold and hot. When cold or hot, it starts just as it should. When it's in between cold and hot, though, it can be very hard to start...

There is a 70” Gravely Triplex Hydro Reel Mower for sale locally. Are parts still available for this thing? I've experimented with a push reel mower on a small area of my lawn, and I like it. But my lawn is too big to mow with a push mower. This would fix that.

I have a CZ 4817, and the tires are fairly old and leaky. I just deal with it by putting air in them every time I use it. I recently tried to level the deck, and found that I couldn't get the deck high enough. I set the cutting height to 3", but at the max height adjustment, the blades were...

Recently, I decided to do some deck maintenance on my Cub Cadet Pro Z 100. Two of the spindles (p/n 918-07255) seemed pretty solid. No play in any direction. Before greasing, though, they made a bit of noise when turning the blades. After greasing, they got quiet. The 3rd spindle... had vertical...

I have a Pro Z 154S, and I'd like to find out what safety features it's supposed to have, and whether I have them all working now. It's a commercial unit, and I bought it used. I'm guessing the lawn company that owned didn't want to be bothered with all the safety features. However, my wife is...

I have a 2016 Cub Cadet Pro Z 100S (steering wheel). It's a commercial mower with just over 400 hrs. One the tires has a slow leak. The other 3... have VERY slow leaks. The fastest leaking tire needs air about every week. The other 3... about every month. Given that the tires are 9 yrs old...

I have a Cub Cadet PRO Z 100 EFI 154-S (53RWEFJA050) with a Kohler Confidant EZT750 (747cc, 27HP, EFI) engine. I recently acquired a tachometer. I'm not sure that the idle and running RPMs are correct, so I'd like to set them. Anybody know the specs? I found the following in the engine service...

I recently took apart my Stihl MS 192 TC chainsaw to clean it and rebuild the carb. I found that the muffler was completely loose. I found one of the two bolts needed. I reinstalled the muffler with the one bolt, and cranked it to see if it made it quieter. IMO, that saw was way too loud for...

I have the above top-handle saw, and when it runs, it works great. But it's been getting more & more reluctant to stay running. I'm almost certain that the fuel diaphragm in the carb needs replacing. It's acting like it's starving for fuel. But I can't find a parts diagram or parts list with...

Does the 17HP Command Pro (CV490S) have hydraulic valves? Do the valves require periodic adjustment? I've searched, but I can't find the answer. I've searched YT, and there are zero videos showing a valve adjustment on this engine. The manual I found online mentions "Adjustable Valve Lash...

I have a Husqvarna CZ 4817 Zero Turn Mower (968999220) with a Kohler Command CV490S. It has the common leaky carb problem, so I I'm taking a gamble on a cheap Amazon carb. However, as I'm putting it back together, I notice that the throttle is not wide open with the mower not running. I can move...

I recently bought a cheap used Bolens 11A-020W765 mower with the 125cc Briggs 08P502-0165 engine, which has the plastic carb and foam air filter. I got it for trim work, but before I needed to use it for that, I needed to use it to mow a small yard. The first time I tried to mow with it, it ran...

Not sure where to put this. I hope this is ok. I have an Echo PAS with several attachments. Most of these have heads that need periodic greasing. Yet none of them have grease fittings. And yet, you're supposed to grease them every (I think) 25 hrs. How do you guys grease them? The videos I've...

My search skills must be crap, because I can't believe this hasn't been asked before, but I can't find it. Just watched a video that said that small engines should use high zinc oil. Is this true? That's the first time I've heard that. None of my engine manuals mention zinc. They all say use an...

I have a Kohler Command 17HP (CV490S, spec # 27515) with a Walbro carb that leaks. I found a video from Taryl where he provides the Kohler carb rebuild kit p/n (20 521 04-S), and it's $48. Cheap, made-in-China carbs run around $20 on that jungle site. You guys have any luck with the cheap Walbro...

Mower: Cub Cadet Pro Z 100S Engine: Kohler EZT750. ~385 hrs. I noticed on my last mow, that when I shut off the engine, it stops more quickly than it did last season. Or even two weeks ago (when I previously mowed). Should I be concerned? Oil is fresh, and level is good. One change from last...

I have an older 3-wheel Honda ATV ("Big Red") that I've been using for light towing around my property. Dragging small felled trees, towing a small utility trailer, etc. It doesn't seem to struggle with the loads I've put on it. But... it DOES seem to struggle with staying cool. The last time I...

I know that the blade tip speed is limited by ANSI to 19000 FPM. Which, on a 22" blade, equates to 3299RPM according to my calculator. I recently bought a tachometer, and found that my residential push mower, with a 22" blade, is running at 2750 RPM. So I started increasing it. When I got to...

I have a Pro-Z 154S. There is a Z-Force LZ60 for sale nearby with a bagger. CC calls both of these commercial, and both have fabricated decks. Will this bagger fit my Pro-Z? If so, I'd be willing to buy the Z-Force, take the bagger, and sell the mower. The bagger for my Pro-Z is more than I paid...

I've read the "Run at full throttle?" thread, but I have a couple of questions not answered there. And the thread's closed. My general approach is that it's ok to run the engine & hydros at low speed if they're cold and not under load. Is this correct? When I first start my zero turn, I let it...

A cautionary tale about oil filters. I bought a used mower a little over a year ago. The engine had oil leaks at the valve covers. I fixed that and a few other things. Got it back together, changed the oil & oil filter, and used it last season. About an hour & 45 minutes per week. At the...

I have a Pro Z 154 with a deck belt that needs to be replaced. The parts list shows the P/N as 954-05013. When I search that P/N on cubcadet.com, I get two hits. One for that P/N, which shows as in stock, and one for 490-501-C094, which shows as the replacement for 954-05013, also in stock. The...

Just picked up a Pro Z 100 for cheap, but it needs a few things. It's been "rode hard, and put away wet", so I want to do some fairly invasive disassembly (like engine & deck removal), but I can't find a service manual. I found an owner's manual, engine owner's manual, and an illustrated parts...