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Kohler Courage 23Hp - Low On Power And Rpm


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#1 tweidman OFFLINE  

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Posted May 13, 2014 - 12:12 PM

My Cub 1050 is acting up. The last couple of times I started it, it idled slow at first, but then came to life after a few seconds. Yesterday, when I started it, it idled slow and then when I increased the throttle to WOT, it was still running at a much lower rpm. Then, when I engaged the deck, it could barely spin the deck.

 I did run some old gas during my last tank. My guess is that it has a fuel issue because of the old gas?

However, it seems odd that it came on so sudden.

 

 I drained the old gas and filled it up with fresh gas and added some carb cleaner. Then, I ran it for a while, and it did seem to be slightly improving as it ran, but far from normal.

 

 So, what would you guys do?

 

  • Replace the fuel filter first?
  • Keep running it to see if it clears up?
  • Pull the carb and clean it?
  • Or could this be an ignition issue?

 



#2 TomLGT195 ONLINE  

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Posted May 13, 2014 - 12:23 PM

I'm no expert in this area, but I would change the fuel filter anyway. Just because it had bad gas through it. Cheap insurance . I would also run some fuel additive in it. Sea foam or equivalent . Something that cleans and protects . Tom
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#3 tweidman OFFLINE  

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Posted May 13, 2014 - 02:46 PM

Yeah,  I will grab a filter as soon as I can. Even if it doesn't help, it can't hurt.



#4 HDWildBill ONLINE  

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Posted May 13, 2014 - 04:17 PM

In addition to Ricks suggestion check and make sure all your linkages are tight and moving full throw.  Also make sure the governor is tight.   If all that checks out then check to see what kind of fuel delivery you have going to carburetor.  It that is good then the problem may be internal to the carb. So you know what that means...



#5 tweidman OFFLINE  

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Posted May 13, 2014 - 04:29 PM

The first thing I did was check the cables and linkages. I also lubed them, everything looks okay.



#6 sacsr OFFLINE  

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Posted May 13, 2014 - 04:44 PM

Hey Todd!! How you been??? No expert on motors so will let the guys with the know how chime in.

 

Hope all is well with you!


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#7 DH1 ONLINE  

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Posted May 13, 2014 - 05:18 PM

Is it a 2 cylinder engine and are both cylinders firing?

 

Good to hear for you again.


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#8 JDBrian OFFLINE  

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Posted May 13, 2014 - 07:28 PM

Is it a 2 cylinder engine and are both cylinders firing?

 

Good to hear for you again.

I was just going to suggest the same thing when I read Dougs' post. Whenever a twin is running poorly i always suspect it may be running on one side only. 



#9 superaben OFFLINE  

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Posted May 13, 2014 - 08:08 PM

On a Courage, I would replace the spark plugs first.  They hate spark plugs.  I would pull the carburetor bowl off and check for what type of junk is there.

 

Ben W.


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#10 tweidman OFFLINE  

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Posted May 14, 2014 - 12:20 PM

Yes, it's a twin. I did not check to see if both are firing, but it run pretty smooth if it's running on one.

The spark plugs are new, just replaced them at the end of last season.

I will pull the plug wires and see if they are both working.

 

I don't think I can get at the bowl on the carb, without pullling the whole thing off.



#11 tweidman OFFLINE  

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Posted May 14, 2014 - 12:28 PM

Hey Todd!! How you been??? No expert on motors so will let the guys with the know how chime in.

 

Hope all is well with you!

 

I was doing fairly well, until my mowing tractor decided to crap out.

 

My week took a total turn for the worse when I drove my truck into the garage last night and forgot to take my bicycle off the rack.

I destroyed about $3,000 worth of parts.  :wallbanging:



#12 sacsr OFFLINE  

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Posted May 14, 2014 - 12:46 PM

Ouch ! Sorry to hear that! Good to see you on the forum!

#13 MH81 ONLINE  

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Posted May 14, 2014 - 05:01 PM

I was doing fairly well, until my mowing tractor decided to crap out.
 
My week took a total turn for the worse when I drove my truck into the garage last night and forgot to take my bicycle off the rack.
I destroyed about $3,000 worth of parts.  :wallbanging:


Wow, makes my oopsie with the stack on the tractor seem insignificant.
Sorry Todd, that sucks.

Ditto on the seeing you on BTW.
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#14 tweidman OFFLINE  

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Posted May 14, 2014 - 09:19 PM

 I figured out why it was running so poorly. No compression on one cyclinder.

I pulled the valve cover and it has a bent push rod. Now the question is....

why did it bend and

what else will it need besides a push rod?


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#15 tweidman OFFLINE  

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Posted May 17, 2014 - 08:30 AM

I picked up the new push rod, it cost a whopping $1.70. The guys at the shop did not expect me to need any other parts. They said that they see this all the time. WTH?

Does anyone know the valve lash spec on the courage 23hp?


Edited by tweidman, May 17, 2014 - 08:31 AM.





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