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So it was the spring loaded grey connector. The spring has pushed through on the inside plastic shorting the seat switch connection wires. This circuit should be open with a rider in the seat.

Thanks for the reply. I cross-connected the pigtail to the seat switch wires with a test wire and the mower still dies every time when I release the brake pedal.

Cranks, starts and idles fine, but as soon as I release the brake the engine dies instantly. I checked seat safety switch which is normally closed-when no rider is on the mower and open when a rider is sitting on the mower. I am looking into the interlock switch now, but not 100% sure on how...

OK, I found out what happened when I put the new belt on 3 times. lol The bolt that goes through the clutching idle pulley and the frame came loose resulting in pulley sag. Due to the sag the belt was riding too low on the stationary idler causing the belt to jump off. I did fail to to put the...

Pulled deck to see...it is obvious my mistake :( and both idlers are fine.

When mowing I can smell slight burning rubber and the brake pedal bounces. This drive belt was replaced about two years ago and is now mostly shredded. Mower is the 917.271022. Any ideas? Maybe an idler pulley? Thanks for help/suggestions.

Here is the final problem. The nipple from a fuel filter broke off inside the last section of fuel line connecting to the carburetor-wasn't me. I had blew air through the lines and observed fuel flow out of the line, so I thought flow was OK. Today I decided to remove and LOOK through every...

If you are running along and the anti-backfire valve loses power the mower continues running? My understanding is the valve closes as soon as engine is turned off blocking off fuel so it does not end up in the exhaust causing the "backfire" as the engine winds down those last few strokes. One...

Seems the ignition switch has been opened before and the internals were put together incorrectly causing a short to the blue wire in all positions except off. Fixed this and I had significant improvement to the longevity with blades engaged, but fuel starvation is still problem. I can mow at...

Has to be something going on inside this engine. Replaced coil due to wire damage and no change. OK I'm desperate so I will try a new spark plug.

Definitely not one fitted on this mower that I can see on the speed control bracket or the air cleaner base according to p.21 of the Kohler service manual. Manual also states, "Some engines are equipped with one of two optional pulse fuel pumps." I am not convinced that this mower should not...

Thanks! I was wondering if it required a fuel pump or not. The service manual only states there are two-types while leaving open the possibility that no fuel pump is also a possibility. Seems I ran across another very similar engine without a fuel pump so I kinda moved-on from the lack of fuel...

Thanks for all the input everyone. I did put a new carb on and the new carb acts exactly like the old carb. To test vapor lock, I setup a floor fan on high to blow heat from the exhaust away from the carb since there is no heat shield on this mower (checked diagram to verify). I let the bowl...

Removed tank, and verified that I do not have any blockage from the fuel tank through rubber line as it connects to the carburetor. Next, I checked the fuel solenoid and it has 13.7-14.0v at WOT when the engine is acting up and cutting out. Moving governor works fine when the engine decides to...

Blade engagement is mechanical. :)

Thanks for the reply/suggestions. If I spray carb cleaner in it the engine will take off again. I will go through and check connectors and wires. This morning I started engine and let it idle with blades engaged for 10 minutes then increased engine speed then it died. I am puzzled.

Engine starts OK, but dies when the blades are engaged. Checked seat safety switch, replaced carburetor and removed fuel cap- none of these made a difference. If I turn the blades off quickly and throttle to choke the engine will continue running, so it appears the engine is not getting enough...

Thanks for the suggestion. Tried bending it back, but tube just bends back. Noticed the brass ring around that tube has some damage and the emulsion tube looks like it has been pushed all the way into the carb as well. Ordered a carb for $15. Mower keeps dying when the blades are engaged, but...

Should the center emulsion tube be off to the side like this?

Let it idle for about 25-30 minutes minutes...finally stopped ticking.

Pennzoil 5w30 full synthetic. Maybe I will give it some more time at low RPMs. Manual states 90 seconds.

New lifters won't seem to stop pecking. Let it idle for about 3 minutes and still pecking. This normal? Reassembly states do not pump lifters up before installation. New pushrods do not have the hole like the old ones I replaced. Thinking of putting old pushrods with hole back in...

One snapped where threads ended and shank meet at 100 in. lb. Rod bolts are M6 (size)-1.0(pitch)x50mm(length of shank and thread combined) grade 10.9.

Can't seem to find them used either. Any suggestions on sourcing a couple?

Anyone have a part number for the rod bolts (6mm straight shank)? CV15S-41567 Diagram is showing rod bolts only with piston-rod kit.

Thanks. Realized I can make a template from the bottom of the crankcase. EDIT: Attached is a redesigned 3D printable variant of the KO1031 endplay tool, which should be OK for my lawnmowers. I don't suggest this alternate tool if your mower is rocket propelled. :)

Yes; old rods did have the hole. Polished all the rotating surfaces today and they look much better now. I think I will use full synthetic in this old mower upon reassembly since "she" has made it this far (24 years). Any chance someone on here has the cam end play tool and could scan so I...

Replacement push rod for this engine (12 411 04-S) does not have hole in center?

Wondering if the pros could give opinions on these journals and surfaces. Mower was hammering like a rod knocking while running and cutting fine. Turned out to be a cam in two pieces. Can't believe it actually ran and cut. This second cam (used) lasted about 5 seasons. First cam was replaced due...

Steers right fine but when turning left I can see the steering sector gear lifts up slightly. Can't tell what the problem is precisely and I hate throwing money at things. Anyone figured out how to solve this problem with ingenuity rather than more dollars?

I guess there is not much more to do than replace the cam and gaskets then...? Just trying to make a decent mower out of this one for my personal yard.

Oh yeah, it was obvious. But I used a dial gauge when the engine was still assembled to avoid guess work. Then confirmed with calipers when the cam was removed. This thing due for a DIY crank polish and a fresh rod bearing? EDIT: This thing even have a rod bearing? Not seeing one in the diagrams.

Engine torn down. Exhaust lobe is almost gone; 1.070 specs call for 1.240. Intake lobe is exactly 1.240. I'm curious how the intake lobe is perfect and the exhaust nearly gone-valve spring pressure or heat radiation maybe, heck I don't know. No major scars in the cylinder walls. Didn't feel a...

Couple small knots in piston from the screw-not too bad though. Start tearing it down in the next few days. Anywhere to get specs/service manual for reassembly?

Shook the muffler around like it owed me money and found this stuff. Not one penny came out of this thing! :) One is clearly the flat-head screw from the Walbro carburetor. The other metal chunks...no idea. Cam lift for exhaust was .074 and Intake .246. These specs close for 31P777? I checked...

Engine Model: 31P777 531 hours on a 18.5 Intek running something terrible. Checked flywheel key and it is fine.Popping out of the carb is erratic in inconsistent just no rhythm to this. Next I plan to check the valve adjustment, but I have seen this same engine with a "flat" camshaft. Mower...

Throttle shaft at the bottom is really sloppy and the top plastic bushing is well worn. Fix or replace? Carb number is Walbro 697202

The other screw is really loose. definitely going to dig around for it in the muffler and scope cam the cylinder.

One of the two screws for the throttle plate is completely gone. Where might I find one? Engine Model 31P777. Thanks for any help. EDIT: I believe I found it 691636. Red thread-lock for these?

I found a 200pc spring kit from harbor freight with a very similar sized spring that works for $4.50usd. Washer is 10.4mm in diameter and about 2mm thick with a slot from edge to center.

Working on a GT plastic transmission and a spring has rusted into 3+ pieces and the washer is MIA. Any idea where I might find these parts for my 917.289081? This transmission doesn't match any of the ones depicted at GT's website and of course the sticker is gone. part numbers are from the...

Found both keys on rear wheels and all present/good. Sadly, it is one of those General Transmissions made of plastic. GT ID sticker is gone and the stamp on left output axle tells me nothing about which transmission exactly I am working with. Cleaned trans good and when I tried to remove the...

Craftsman LTS2000 (917.289081). I followed the shifter adjustment procedure in the manual and forward works great now, but reverse does not engage at all. After about 10 minutes of messing with this thing the main drive belt jumped off twice so I simply slipped it back on and forward works fine...

Thanks...tightened two carb nuts and she is good to go now...other than the pecking engine.

When the engine is cold the throttle controls the engine RPM as normal, but when warmed-up the engine appears to be full throttle and will not idle down with the throttle lever.

Dust is from being in storage for several months. This engine did not mow a yard: https://postimg.cc/gallery/Lhz5pbQ

Brand new engine low on oil? Cylinder wall is very nice-oil starvation would have a cylinder wall scratched quite badly too, sorry low oil theory just doesn't fly. Can anyone go to a retailer and start pulling dipsticks and see how many are low on oil when pushed away from a retailer? If you...

Please check your rod cap torque before shipping engines to retailers. DOM 4/29/19-yes it was a Monday build. Thought for sure the PO failed to put oil in this engine. Engine looks brand new including cylinder wall! Pulled cover off bottom and saw the rod bearing, rod cap, crankshaft and bearing...

Thanks for the suggestions guys. Some more info I just remembered, it was having problems on low-grade hills and the tires were not slipping either before it finally quit. Not heard any really bad gear grinding noises from the trans or the mower. I removed the pump and spun the axles in the same...

Thanks for the reply Bert. Here is what I can tell you. If disengaged it rolls fine. Last thing I did was mow the lawn (worked fine), shut off then pushed mower (I did not disengage) dragging tires through grass about 30 feet. Week later fired her up and she won't budge (forward or reverse)...