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I have an intermittent misfire with this engine. Serial number is 406777, type is 0442 B1. I have replaced the spark plugs after setting the correct gap. I have checked the valve lash. The intake on the left cylinder needed a slight adjustment. The others were all at .05. I cleaned the valve...

The past 2 times I have mowed the lawn, the drive belt on my riding mower (Ariens 42" hydro) has come off the idler pulley. This only happens after the mower is shut off. This pulley has a guard, so I don't understand how it's coming off. The belt is a few years old now, and it doesn't show any...

This is on an Ariens 936042. It's a 42" deck. I just tore it down to repaint and rebuild it. I replaced the spindles, idler pulleys and blades. Replaced the blade brakes. Reinstalled everything the same as I found it. Now the blades won't disengage. Any thoughts? I used a schematic from an...

This is with an Ariens 42" hydro tractor, model 936042. I only get a click from the fuel solenoid on the carburetor. Using a voltmeter, I checked the voltage at the energizing wire at the starter solenoid, and I get 9 volts. I get 12.47 volts at the battery and the battery post on the starter...

Hoping that someone here has seen this. I was replacing the fuel line from the tank to the fuel filter on an Ariens 20hp 42" mower. The fuel line that I was using I had purchased last year, and I had used small portions of it to replace the line from the fuel filter to the fuel pump, and from...

This is a B&S 20hp v-twin engine on an Ariens model 936042 riding mower. If the mower sits for a week or so without running, it takes several seconds to get it started. I don't want to seem paranoid, and if this is normal then I apologize now. It runs very well after it starts, and when it's...

Ariens 20hp 42" deck, model 936042. When idling, I can hear a slight misfire. It's fine at full throttle. New carburetor last summer, with new fuel pump and filter. New air filter and pre-filter. I didn't make any adjustments to the carb other than turn down the idle speed slightly. Any ideas...

Had anyone here tried this? I thought I would, but after installing new steering spindle bushings, and installing the bearings and thrust washers, there wasn't enough room to reinstall the e-clips and washers on the steering spindles. I was kinda looking forward to how it would feel. Did I do...

Not sure if this is the correct forum, but has anyone tried this mod? I tried to install the bearings and thrust washers while I was replacing the drag links and installing new steering spindle bushings. Once I installed the bearings and thrust washers, I couldn't install the e-clips with the...

This is for an Ariens 20hp B&S with a 42" deck. There's supposed to be bushings on the bolts where the drag links attach to the steering gear sector. I am replacing the drag links, and I see that the bushings aren't there. Are these a necessary item? Also, I'm having serious difficulty...

This is on a model 936042. The front wheels are tight on the axles, but there's lots of room to slide back and forth. Should it be tighter? Seems like about 3/4" of travel on both wheels. When I bought this lawn tractor, some things were not assembled correctly, such as no thrust washers on the...

I suppose this is a stupid question, but how can I tell if this bushing is bad? Will there be back and forth movement? Is it difficult to replace? This is on a 20hp 42" Ariens tractor, model number 936042. Thanks

I just installed a Husqvarna repair kit for the transaxle mounts, along with a low hours K46 transaxle. I changed the fluid before installing it. I also replaced the drive belt since it was the original one. When I started the mower, it wouldn't move in either forward or reverse. I checked the...

Upon removing the K46 from my Ariens model# 936042 (20hp B&S, 42" mower), I discovered that both the brackets were split at the part closest to the rear. Aside from having it welded, is there any other repair that anyone here has done? I certainly can't afford a new mower, and have already...

New member here! Having some issues with the B&S Intek 20hp in my Ariens mower. The model number for the engine is 406777, type 0442B1. I had a surging problem, so I purchased a new carb. It appeared to be identical, except for the fuel solenoid. The OEM one was on the bottom of the fuel bowl...