k341

[Dan Hankins 80]

Let me start off saying I'm new to the forum and have had no luck finding what I need to know, I'm sure it's here somewhere but I'm new so here we go. I recently bought a sk486 that has a k341 I've readjusted the governor but it doesn't seem to be working. The only part number I've been able to find is a- 235743 - s but every site I go to only list that up to a 301. So my question is, is that the proper governor for my k341?

[gwest_ca-(File Mod) 11,714]

This is the ipl for the original Kohler spec number

https://www.partstree.com/parts/kohler-engines/engines-horizontal/k341-71311-kohler-k341-engine-k-series-wheel-horse-16hp-11-9kw-specs-71105-71384/

 

Looks like you have the correct part number.

 

I have never understood the adjustment instructions in the service manual. To me they have it backwards. Can explain how I do it if you want.

Another problem is the arm can slip on the shaft so you lose your adjustment. It has to be quite tight.

 

Garry

[Dan Hankins 80]

Always happy to hear how someone does something and I would like to hear how you adjust one, but mine doesn't even seem to be trying to move the throttle with a load put on the engine and my throttle is way to sensitive. It's on a sk486 and my throttle lever goes from idle to full in about a quarter of its travel.

 

[gwest_ca-(File Mod) 11,714]

The throttle cable should tug on a spring that is connected to the governor arm. This increases rpm.

The governor tries to reduce the rpm with a force proportional to the engine rpm.

The balance of those two forces is the rpm you end up with.

 

This is done with the engine not running.

Move the carb throttle shaft from the idle position to wide open throttle. As you go from idle to WOT watch the governor shaft and note which way the shaft rotates. Clock-wise or Counter clockwise.

Now loosen the clamp on the governor arm so the shaft will rotate in the arm.

Move the carb throttle to the wide open position and hold it there. Use a helper or elastic band.

Now rotate the governor shaft in the direction you noted above until it stops and hold it there.

Tighten the arm clamp to secure it to the shaft.

Done.

Have been told this procedure will work for any engine or governor design and so far it has for me.

 

The different holes in the arm for the spring adjust the governor sensitivity but do the above first and it hopefully corrects everything.

Maximum rpm is controlled by a stop that limits the travel of the throttle cable or linkage just ahead of the spring.

 

Let us know how you make out.

 

Garry

 

 

[Dan Hankins 80]

Already been through all of that and carb reset and also made sure the points were gaped correctly to no avail that's what makes me think something is wrong inside.

 

[wallfish 18,624]

With the engine running, push on the governor arm to increase the engine RPM. Arm must be tightly clamped to the shaft.

You should feel a NOTICEABLE force pushing back to try and close the throttle. If you feel that, then the governor system inside the engine is working.

If not, It's possible the tab on the governor shaft broke off inside the engine, or the shaft is slipping inside the arm.

 

What are the symptoms of why your saying it's not working properly?

If the engine is hunting up and down in RPMs, that is usually a carb fuel mixture issue.

 

Edited August 21, 2016 by wallfish

[Dan Hankins 80]

8 minutes ago, wallfish said:

With the engine running, push on the governor arm to increase the engine RPM. Arm must be tightly clamped to the shaft.

You should feel a NOTICEABLE force pushing back to try and close the throttle. If you feel that, then the governor system inside the engine is working.

If not, It's possible the tab on the governor shaft broke off inside the engine, or the shaft is slipping inside the arm.

 

What are the symptoms of why your saying it's not working properly?

If the engine is hunting up and down in RPMs, that is usually a carb fuel mixture issue.

 

My throttle is very quick to Rev up and it doesn't hunt it just loses ram on hills very erratic and not ever really steady I've been thru everything I can think of. I haven't tried moving the governor arm while running. If you have it setting idle and put a load on the engine like kicking the deck on the engine will take it but it loses ram and it doesn't look like the governor even tries to pick it up. When I adjusted the governor it did stop turning like it's in tact inside but still the same problem. Shafts not slipping it's good and tight and everything's set back to factory settings besides the carb which is close to factory settings but fine tuned.

 

[Shynon 7,491]

Governor gear could be broken.

[Dan Hankins 80]

Well I pulled the engine today and took the oil pan off. The governor gear is stripped and unfortunately the piston skirt is also broke. Guess it's time for a rebuild.

 

[Dan Hankins 80]

Got my block back from the machine shop yesterday and got it all back together finish up a few things on it today and fired it up. Runs good glad to have the sk486 back up and running.