Kohler Courage SV600 - closed throttle

shauncavett · May 22, 2013

Long story short...the throttle plate on my carb stays closed at all times. It appears a spring is missing or something.

Long story - My brother in law is our default mechanic who decided the carb kit was needed because my SV600 would not turn over. It will crank, but not start. Carb kit came in and I can't get my brother in law to call me back. As a result, I'm trying to install the new carb. Upon carb installation, i found something other than the carb is causing the throttle to stay closed. There very well could be a completely different issue.

I have attached a few pictures for what it's worth.

Any help will be appreciated!

chance123 · May 22, 2013

Do you have the throttle control in the run position? Also, see what happens when you put your throttle control to the "choke" position and see if the choke butterfly closes.

EngineMan · May 22, 2013

Looking at the photo's I can't see the governor spring, but then, I am old and my eye's are no longer good..!.

shauncavett · May 22, 2013

chance123 said:
Do you have the throttle control in the run position? Also, see what happens when you put your throttle control to the "choke" position and see if the choke butterfly closes.

The throttle plate stays closed even when I move the throttle lever up and down. When I push the throttle lever to the choke position, it closes the choke plate.

The rod connecting to the throttle plate seems like it's not attached properly or is missing something....

shauncavett · May 22, 2013

EngineMan said:
Looking at the photo's I can't see the governor spring, but then, I am old and my eye's are no longer good..!.

the choke rod has a spring on it...but the rod to the throttle has no spring.

EngineMan · May 22, 2013

Photo show's (h) governor spring, do you have it..?

shauncavett · May 22, 2013

EngineMan said:
Photo show's (h) governor spring, do you have it..?

The governor spring is connected under the speed control bracket. Everything shown in the parts diagram is on my lawn mower.

I didn't watch my brother in law remove the old carb...so I didn't pay attention to how the linkages were removed...or how they were connected prior to removal.

EngineMan · May 22, 2013

Is throttle linkage (e) fitted to governor lever (b)...?

chance123 · May 22, 2013

shauncavett said:
the choke rod has a spring on it...but the rod to the throttle has no spring.

Actually there "is" a spring on the throttle linkage. This spring is to keep play out of between the carb and the governor arm for smoother running.

Try moving the governor arm by hand to see if it moves freely. You should be able to grab the throttle linkage (closest to the engine) and it should move back and forth freely. If it doesn't, find out what it is hanging up on. When doing this, have your throttle control at "low" speed. When things are correct, and you move your throttle control to fast (or choke) you should feel some resistance when trying to move the throttle linkage. This resistance is your governor spring doing its job.

EngineMan · May 22, 2013

There is a spring on the throttle rod in the photo 1

Kohler Courage SV600 - closed throttle

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shauncavett

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shauncavett

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