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Found 14 results

  1. hunterguy92

    K301 Woes

    Well as normal, fix one problem and find another. My C-120 with 12hp K-301 has been running very smoothly. I rebuilt and tuned the carb a few months back. Yesterday I made a trip from the garage to the backyard (2 minutes) and got off the tractor and let it idle at mid-throttle. After about 30 seconds all of a sudden it started sputtering out, puffing black and I struggled to keep it running. Finally it died and would not restart. I took the air filter off and it was wet with fuel. Trying to start it again, it would sputter and spit fuel out of the carb but not stay running. So naturally I took the carb off (it was clean) and gave it another good cleaning anyway. Float is good when shaking it. Reassembled and put back on the tractor but it still isn’t running right. It will start up after leaving it sit for a while (but rough) and after only running for a few minutes it will sputter, die and not restart. I checked right after it died and and there was spark. Took the fuel line off the carb and it seems to be pumping fine. What do you guys think? Points and condenser? Coil? Stuck valves? i really don’t think it’s the carb unless I somehow installed the needle or seat wrong. Super strange that it has been running like a top, starting on second crank and all of a sudden struggles and won’t start. I’m pretty stumped here, so I thank you for your help!
  2. RJ Hamner

    Kohler K301 Has me stumped

    Let me first say that it ran when I brought it home. Drove it around the guys yard, tried out the mower, drove it onto the trailer and drove it off the trailer and into the garage. I've done a "ground up" restore on the tractor (70 Charger 12). Swapped out the breakerless for a battery ignition and swapped out the 10 amp for a 15 amp stator, flywheel and regulator. Pulled the head, looked pretty good, new head gasket and head bolts.new fuel pump, fuel lines,new switches and wiring, new aftermarket carb, new coil, coil wire, new points, new throttle and choke cables. Static timed (twice just to make sure) Have tried Autolite 216's and the hotter 437's. changed the condenser to the high dollar Kohler one. It will idle but when I give it some throttle it stumbles or will rev up a little then quits. I've gone thru the "trouble shooting " steps multiple time and to no avail Anyone got any ideas?? I am willing to try most anything at this point Bob
  3. The Gman

    K301 fuel pump

    Help time please.... The k301 for my c120 (bought the tractor literally in pieces but all there I think???? ) is missing the fuel pump. I've check the engine out with the ol intravenous method and its . Ebay will sell you one for anywhere from $20 - $160. I know you get what you pay for but....... really????? Isave tractors has one in the $50 range. Any experience with the plethora (is that really a word??) of 301 pumps out there?
  4. andrewLL

    Loss of power

    Hi, hoping someone can help. I'm over in France trying to tidy up my place before the winter so do not have all the tools I have back at home. I have a separate problem with the gear box but have posted separately. Back in July when l last used the tractor it was loosing power when it got hot, and looking on the internet it appeared that the coil may be the problem. i have just returned to France and brought a new coil with me and replaced the old one. This coil has a separate ballast resistor attached. The tractor started first go and I started to cut the grass but with gearbox problems. The grass was long and thick in places and the tractor coped well, just heading the governor apply a bit more power in places. Them after about half an hour the engine lost power and there were some visible flames commons ftom the exhaust. can any one tell me what is happening here. I assume that it is heat related because the engine started first go and then ran well. But it must have been fully up to temperature long before this loss of power. Seeing flames from the exhaust indicates that the fuel is not being burnt in the cylinder, is this an ignition problem? Or are the valve not shutting properly an the fuel is just being pushed straight out of the engine? I'm sure it would look quite cool after dark, but with no power the grass will keep growing. Hop some one can help. Thanks, Andrew
  5. WHX21

    A blown K301

    So this is my man's @Rp.wh12 hp '68? Raider that had a little mishap at my recent plow event. Good news here is the block was not ventilated so we think with a little coin and some greasy hands this motor can be saved. It seems that when a rod goes it will either punch the block or go the other way to the cam. Which is what it did breaking the cam. Note the indent on the fuel pump lobe where something wacked it. Piston shirt was busted up pretty good as it looks like the piston was slammed down on the crank. Wrist pin was ovaled and the whole bottom of the piston was mashed. This was done under a full load of dirt and plowing. @PeacemakerJack claims to have a video of when it went so perhaps he'll share here. I chewed my man's rear out about it running it low on low oil and tipped over in the furrow but he swears he topped it off before the day. I dunno but but not much oil came out and what did was sludge. Regardless damage is done so let's just fix it. New 10 over piston with rings is in order along with a new cam and 10 under rod. Bore is clean and not tapered so a std. piston and rings might be fitted in but is getting close to max out of tolerance so might as do it right. Obviously suffering from some low end lubrication issues.
  6. Team70R

    12 horse short frame?

    Thinking about putting a K301 in a short frame such as a 606. Curious if anyone has tried this! Will it fit?
  7. valleyboy

    valley boy

    any problems replacing a K301 with a K321 on a c120 hydro ?
  8. E12Horse

    1969 Electro 12 Parts

    Parting out a 1969 Electro 12. with a blown motor. Also have the Hydro listed and I have all the parts for a hydro lift conversion. Sheet metal, frame, wheels, engine block, bearings, many parts, let me know what you need and hopefully I can help. I would like to find new homes for all these excellent old parts! Will sell the lot or individual items. Call or email for more details.
  9. KC9KAS

    Raider 12 air cleaner issues

    Working on a 1969 Raider 12 for a friend. As far as I can tell, the engine is the correct one for this tractor. It was missing the entire air cleaner, so the owner got an air cleaner housing, but I have found that it will not fit on this carb. The mounting holes on the air cleaner base are 1 7/8" center to center for both the horizontal and vertical holes. The carb has been roughed up a little and the 2 horizontal holes have been "wallowed" out and a piece of the aluminum casting has actually been broke off and some type of plastic filler was used to "hide" the damage. Can't do much to repair this as the choke shaft rotates here. The vertical holes on the carb are 1 5/8" center to center. Can anyone shed any light on this? Is the carb for older K301 engine different than the carbs for say a middle 70's K301? I think I will just pull this carb and install one off of another 12 hp that already has the air cleaner base on it!
  10. mmmmmdonuts

    K301 Points Push Rod Not Moving

    I was snowblowing the other day and got about half way through my driveway and all of a sudden my tractor died and I could not get it restarted. The first thing I noticed when it died was that the battery went down rapidly to about 7V but I think that had to do with my external alternator hooked up and not spinning but I could be wrong. I got the tractor back in the shed and could not get it turned over at all. The starter spins and everything seemed to move freely but I was not getting a spark. Changed the spark plug yesterday because it looked pretty gummed up and still nothing. This morning I was diving into the electrical system and got to the points where I was going to reset the timing and I realized that the points plunger does not move when I rotate the flywheel by hand. I guess at this point I don't entirely know what I have to do. Is it an easy/worth it fix or does the whole engine need to come apart? Can I change it to a different type of ignition system? Any other thoughts to try? Repower? Thanks, Bob
  11. Is what it is. I've had it probably 5 years and mowed with it till the deck let go. Have used it to pull large yard trailer ( last pic ) around since, Motor has Kohler rattle at different rpm but not all the time. Has done that from day one. Don't smoke, oil usage is normal. I bought it at estate auction. Was in old barn covered up. The paint job ain't mine. Front tires are WH, all are weathered but hold air well. Hasn't set out since i've had it. Need room. First come basis. Pick up at 47360. NOW selling at auction 8-14 noon.
  12. My dealer can't finds PN# for a muffler gasket. anyone know what it is?
  13. lazy8's

    1976 C-120 Automatic

    1976 C-120 Automatic with 12HP Kohler engine, Sundstrand hydrostatic transmission and 42 inch, side-discharge mower deck. Also comes with a Wheel Horse dump cart (which is in rough shape); otherwise, no other attachments or implements. Owned since new by same family; currently third generation. Gently used every year for residential grass cutting only (<1 acre). I’ve had it for 9 years and kept it inside; minimal surface rust (mostly paint oxidation). Starts in less than one second, runs well and has been very reliable. Currently will need carburetor work. In addition, the lights, seat weight sensor and mower deck lift function have not been operable for some time. In the last 9 years, new parts include: PTO plate, left and right front wheel spindles, sparkplug, ignition coil, battery, starter solenoid and PTO drive belt. It weighs about 700 pounds and purchaser will be responsible for transportation.
  14. yzf450motoxrider

    Kohler K301S 12hp problems

    I have a kohler 12hp engine in a 312A that's having issues. It will run with the choke on and throttle all the way up. If the choke is turned off it will die. After it warms up it will run without the choke on but only at the lowest throttle setting. Any suggestions? Thanks