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What's Going On Here?

#1

J

JonnyBlaze

I just bought this YTH2248 with the CV675s 22hp Kohler. The previous owner had the choke linkage and cable all bent and messed up. I bent it back and rerouted the choke cable.

The problem is that it doesn't seem like it's throttling up all the way with throttle at max and it stalls when engaging the electric deck pto, not all the time but most. I believe it's because of the throttle issue. Here are some pics.

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#2

D

Darryl G

Don't know what's going on with your throttle and choke but just wanted to mention something I've learned to help with your stalling issue until you can get it sorted out.

Instead of just engaging the PTO and leaving it engaged, pull it out for a second to just get things turning, push it back in and then pull it back out. This works for my somewhat tired Exmark running heavy G-6 blades with the spindle-driven vac unit on. Basically it splits the start-up load to 2 events rather than one, reducing the strain on the engine.


#3

J

JonnyBlaze

Don't know what's going on with your throttle and choke but just wanted to mention something I've learned to help with your stalling issue until you can get it sorted out.

Instead of just engaging the PTO and leaving it engaged, pull it out for a second to just get things turning, push it back in and then pull it back out. This works for my somewhat tired Exmark running heavy G-6 blades with the spindle-driven vac unit on. Basically it splits the start-up load to 2 events rather than one, reducing the strain on the engine.
Thanks. That's what I have to do to get it to work.


#4

D

Darryl G

Thanks. That's what I have to do to get it to work.

Could have a fuel delivery issue, governor issue or carb issue, or worst of all the thing is just tired. Does it smoke?


#5

J

JonnyBlaze

Could have a fuel delivery issue, governor issue or carb issue, or worst of all the thing is just tired. Does it smoke?
I think it's a governor issue but not positive. It doesn't smoke at all. It only has 169 hours on it.


#6

C

cruzenmike

If the governor is out of adjustment it the springs in the governor are stretched, then this could happen. Also, it may not be running at the correct top load rpm. I had this issue with my 18hp Briggs that was supposed to be run at 3650rpm no load full throttle and it was only at about 3250 before I adjusted it. On top of that, it is recommended to engage the PTO at half throttle so I was definitely down on power when the clutch would grab.


#7

R

Rivets

I just bought this YTH2248 with the CV675s 22hp Kohler. The previous owner had the choke linkage and cable all bent and messed up. I bent it back and rerouted the choke cable.

The problem is that it doesn't seem like it's throttling up all the way with throttle at max and it stalls when engaging the electric deck pto, not all the time but most. I believe it's because of the throttle issue. Here are some pics.

You don’t have the cables hooked up correctly. Take a look at page 5.19 of this manual, which should help you out.

http://www.mymowerparts.com/pdf/Koh...d-CV17-CV18-CV20-CV22-CV25-CV22-CV23-CV26.pdf


#8

J

JonnyBlaze

Thanks for that. I just took a look. I guess I'm not seeing whats not hooked up correctly? The cables seem to me that they are in the same positions as the illustration?


#9

R

Rivets

You have both cables hooked to the same lever. The lever is the choke lever and I’m assuming your choke cable is the top one, coming in from the left. That means that the other cable, coming in from the right, is the throttle cable, which should be hooked to the lever behind the choke lever.


#10

R

Rivets

You have both cables hooked to the same lever. That lever is the choke lever and I’m assuming your choke cable is the top one, coming in from the left. That means that the other cable, coming in from the right, is the throttle cable, which should be hooked to the lever behind the choke lever.


#11

J

JonnyBlaze

The left is throttle, the right is choke. So where should I have it hooked exactly? Another pic.

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#12

B

bertsmobile1

When the throttle lever is fully open both of those spring should be stretched.
If not the throttle control wire is not opening the throttle by putting tension on the governor ( which tries to close the throttle )

My first thoughts was both of those cables seem to be clamped a long way back.
On all of the Kohlers I work on the outers are clamped from 1/4" to 1/4" from their ends.
The rod on the right of the photo is the choke rod.
The throttle rod is the one shown under ( to the left ) of the choke rod and has the damper spring around it.
If that does not move when you move the throttle control then it is not connected properly.


#13

R

Rivets

Sorry, after I looked at pic #5 I am mistaken, you have them hooked to two different levers, which is correct. I don’t like the bend in that choke cable, if you can make it come in straighter, it would help. You said when you got the unit things were messed up, so I would start over. You don’t know what the last guy tried to do. I would start my troubleshooting by checking to see if the governor is set properly. Next, I would make sure the controls are operating the throttle and choke shafts correctly. Does the choke control close the choke plate fully? Does the throttle control open the throttle plate fully? Are the RPMs set correctly? When you speed up the engine does the governor work properly? You may have to change which hole on the throttle control lever your throttle cable is attached to. The service manual will provide you with the info you will need to go through these steps.


#14

J

JonnyBlaze

When the throttle lever is fully open both of those spring should be stretched.
If not the throttle control wire is not opening the throttle by putting tension on the governor ( which tries to close the throttle )

My first thoughts was both of those cables seem to be clamped a long way back.
On all of the Kohlers I work on the outers are clamped from 1/4" to 1/4" from their ends.
The rod on the right of the photo is the choke rod.
The throttle rod is the one shown under ( to the left ) of the choke rod and has the damper spring around it.
If that does not move when you move the throttle control then it is not connected properly.
Springs aren't stretched at all.


#15

J

JonnyBlaze

I know the choke closes. Not sure about throttle plate. I'm going to play with it tomorrow. I don't know anything about setting the gov or rpms. I've never had to do anything like this before.

Thanks for the replies. Much appreciated.


#16

B

bertsmobile1

The instruction for doing that are in the manual that you were directed to back in post # 7 by Rivets.
The springs should be connected to a right angle lever which is bolted to a rod that comes directly out of the engine .
That is the governor.
When you move the throttle control it stretches those springs .
So get some one to move the throttle control up & down and see what is happening.
Move the governor lever with the springs attached to it and see what they move.
That is what the throttle cable should be attached to.

That particular control panel set up is a PIA.
Kohler decided to simplify things bu making only one plate to cover all variations of control lay outs.
In doing this they made it very confusing.


#17

J

JonnyBlaze

The instruction for doing that are in the manual that you were directed to back in post # 7 by Rivets.
The springs should be connected to a right angle lever which is bolted to a rod that comes directly out of the engine .
That is the governor.
When you move the throttle control it stretches those springs .
So get some one to move the throttle control up & down and see what is happening.
Move the governor lever with the springs attached to it and see what they move.
That is what the throttle cable should be attached to.

That particular control panel set up is a PIA.
Kohler decided to simplify things bu making only one plate to cover all variations of control lay outs.
In doing this they made it very confusing.
I'll report back my findings tomorrow. Its doesn't help that the PO had a couple of those levers bent out 90 degrees. I bent them back as best as I could, I just hope its good enough. Wonder if I should try and locate a replacement assembly.


#18

J

JonnyBlaze

I got it. Thanks everyone! The throttle lever screw wasn't making contact with the the lever that has the contact pad in it that I assume controls the carb. It's was one of the lever that the PO had bent all out of wack.

I'll be posting about another Husqvarna soon that doesn't want to turn over. Kohler Courage 21hp.


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