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It's been ages since the parking brake on my Horse XP lawn tractor worked, and the biggest obstacle to a DIY fix has been a near-complete lack of information about the brake. I made a little progress toward finding info when I learned that the parking brake was part of the transaxle (seems like...

This is a 10-year-old Kohler SV-601 20 HP engine on a 2016 Troy Bilt lawn tractor. I'd just finished maintenance and degreasing the engine, so all the soot shown in the attached photos is from operating the mower without the blower housing for about an hour in a *very* dusty area. Any idea where...

One of the threaded bolt holes that attach the throttle bracket to the crankcase cover is stripped on my Kohler Courage 20. The parts list calls for a thread forming M6 (Kohler 25086403S) and my calipers say the hole is 6.11mm wide. Is there a relatively easy way to get a new bolt threaded into...

A little background first... I have no idea what I'm doing with this stuff, but it's DIY or do without these days, so I DIY everything I possibly can. This engine's throttle plate got a bit mangled after dropping a screw a few months ago and it started over-revving badly, so I replaced the...

My XP didn't want to start last week, so I jumped it with an automotive jump pack. After it started, it ran for 2-3 minutes and died. Turning the key had no effect. The 20AMP fuse between the battery and solenoid (I think, I can't see in there, but that's where the fuse is positioned) was blown...

Troy-Bilt Horse XP/Kohler Courage SV-601 I'm nearly at the end of this DIY repair, thank goodness. I cranked it up today and am hearing a sound I don't recognize, but I do have a habit of after any repair, seizing on a particular thing (sound/vibration/behavior) that I'd just never noticed...

I just completed a repair on my Troy-Bilt XP/Kohler Courage 20 SV600 lawn tractor that required me to remove the speed control bracket. Now that it's all back together, the engine is running at a too-low RPM. it looks like adjusting the RPM is pretty simple but I'd like to use a tach to make...

Suddenly, my Kohler Courage 20HP (TroyBilt) is running flat out, revving well above its usual highest RPM. The throttle control has no effect and the throttle linkage on top of the carb (circled in red on drawing) seems to be frozen and will not move/pivot either by hand or with the throttle...

First major mowing (1.5 - 2 hrs) after spring maintenance (spark plug, oil & filter change, air cleaner & pre-cleaner), after an hour or so, engine started sputtering like it was running out of gas. After a few seconds, engine smoothed back out. Pattern repeated every few minuntes for the...

Tried to do my first-ever valve adjustment on my Kohler Courage 20 SV601 engine today following this guide https://youtu.be/VyPCBqGMYvo?t=354, and wound up backing out of the attempt when I was unable to loosen the T15 Torx screw on the exhaust side. As I understood the video, the Torx on the...

This has happened to me a couple times. As the subject says, the oil will show low (1/2 the operating range) so I'll top it off until it reads full. After running a little while and checking it again, the dipstick will show the engine oil to be overfilled. Any idea why this is happening, and how...