1863. Kohler CH18 throttle issues.

[LongPatrick]

Yes governor shaft is set per the manual specs. Loosen nut. Set throttle to full throttle. Hold governor arm as far towards the carb as it will go. Turn shaft as far counter clockwise as it will go. Tighten nut.

So yes all of that has been done and checked. All is good there.











[/B]

Originally Posted by J-Mech

Yep. That's a pic of the throttle and choke linkage/mechanism.

You didn't answer the questions though: Did you properly set the governor shaft?
If not, you need to do that.
I keep my original opinion that you don't have the throttle linkage adjusted correctly.
And yes.... the governor spring is set too sensitive. While that is not the issue, it's too far back on the governor arm. Third hole from the end if memory serves, but you need to check the manual. Move it to that spot BEFORE you calibrate the linkage.... but after setting the governor shaft if you didn't do that.

[LongPatrick]

Originally Posted by J-Mech

Yep. That's a pic of the throttle and choke linkage/mechanism.

You didn't answer the questions though: Did you properly set the governor shaft?
If not, you need to do that.
I keep my original opinion that you don't have the throttle linkage adjusted correctly.
And yes.... the governor spring is set too sensitive. While that is not the issue, it's too far back on the governor arm. Third hole from the end if memory serves, but you need to check the manual. Move it to that spot BEFORE you calibrate the linkage.... but after setting the governor shaft if you didn't do that.

Yes governor shaft is adjusted following the manuals directions.

[J-Mech]

Then move the spring to the correct hole, and adjust the cable so it will idle. If it still wont' idle, is the idle stop screw holding it from doing so?? Is the low speed setting on the carb correct? When you move the throttle to the lowest position when the engine is off, it should close the throttle plate to the idle stop screw. If it doesn't adjust it so it does. Basic stuff man.... basic.

[swacor]

Originally Posted by LongPatrick

Yes governor shaft is adjusted following the manuals directions.

Its been a few years but i remember on mine when i went by the manual it did the same thing your describing. Try turning the governer shaft back some from specs and then tighten nut.

[J-Mech]

Originally Posted by swacor

Its been a few years but i remember on mine when i went by the manual it did the same thing your describing. Try turning the governer shaft back some from specs and then tighten nut.

No. Do NOT do that. If you had to do that to yours, it was because the throttle linkage was not correctly adjusted.

Moving the lever away from the flyweights on the governor, limits its full travel distance, thus limiting the governors ability to do its job. Guys, come on. Things have to be set right. You can't just guess. Figure out the problem and FIX IT.

[LongPatrick]

No. Do NOT do that. If you had to do that to yours, it was because the throttle linkage was not correctly adjusted.

Moving the lever away from the flyweights on the governor, limits its full travel distance, thus limiting the governors ability to do its job. Guys, come on. Things have to be set right. You can't just guess. Figure out the problem and FIX it"

Everything seems to be correct and I dont know what other adjustments I can do. So what is your suggestion other then just "figure it out"? Not trying to be a dick I'm just stumped here. I rebuilt the entire motor and it runs awesome, I dont see any adjustments to the linkage. The rod clicks into the carb and into the control bracket. So if I'm missing something tell me.

[cooperino]

[QUOTE=LongPatrick;466420]

Originally Posted by J-Mech

No. Do NOT do that. If you had to do that to yours, it was because the throttle linkage was not correctly adjusted.

Moving the lever away from the flyweights on the governor, limits its full travel distance, thus limiting the governors ability to do its job. Guys, come on. Things have to be set right. You can't just guess. Figure out the problem and FIX it"


Everything seems to be correct and I dont know what other adjustments I can do. So what is your suggestion other then just "figure it out"? Not trying to be a dick I'm just stumped here. I rebuilt the entire motor and it runs awesome, I dont see any adjustments to the linkage. The rod clicks into the carb and into the control bracket. So if I'm missing something tell me.

Something definitely looks wrong. The inner part on the cable looks to be touching part of the throttle linkage. That's a sign that something is in the wrong spot. They are never set up to rub each other and effect the movement.

[nophun]

I had the same problem on my 2185 after doing some carb work, way back when I first got it 4 years ago. As I recall, I just had to loosen the cable clamp and let some slack out. I had 1st adjusted it at either WOT or closed which somehow limited travel. Now it is adjusted by mid-throttle on the dash, giving a little extra travel at both ends.


Anyway, I went out and looked at my 2185 and then looked up the picture which is attached from:

http://www.smallenginesuppliers.com/...ment-guide.pdf

I think you need a cable adjustment, mine is very close to the picture from the pdf and runs properly, your the throttle lever is turned quite far to the right.

ETA: I found that outmost hole on the throttle lever gave the best travel at the instrument panel, and that 3rd hole from the end on the sensitivity cured the governor surging.

[cubs-n-bxrs]

I just went out and looked at my 18 command and when it is at idle with the choke not pulled the cable attachment arms should be almost stacked on top one another.

[CubDieselFan]

This what mine looks with throttle setting at idle.