kholer courage 23 very hard to start cold ok warm

Does this have hydraulic lifters? You said you adjusted the valves last year. ??

Is this a twin cylinder or a single?
 
ignition coil set a .011 sharp, get very good spark up to 1/2 inch.

did not test ignition switch but exactly same issues with old and new except with new switch solenoid does not stick on.

tested new solenoid, perfect.

new stater operating good ( about 1 year now) and reason the reason I change it ,(difficult to start) and installes un upgrade one.

Did not check float level, but did not do anything to alter it either.

Once started, after most of the time several attemps, engine does definitly pull all kind of fuel and run idle ond full speed.( black smoke if the choke is on). indicating no fuel blockage?

Also spraying fuel in the carb prior starting may help or may not.

I am at a lost why sometimes eventualy start, and very hard to start only when cold.

will start after running a fews seconds ( 15-20 second).

it does try to start basically sputtering.
 
slomo said:
Dump and flush out the fuel tank. Install all new fuel line. Could be water and or trash in the gas.
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thanks for all this help, did check the fuel pump and pump fuel in a clear glass container , no contamination whatsoever ( carburatyor bowl had no debris no water no corrosion whatsoever), the tractor has run with mutiple tank of gas in the last year with the same problem.
 
slomo said:
Tells me you have near zero fuel delivery TO the carb. A fully closed choke should be pulling all kinds of fuel into the carb IF the fuel line is clear and can do so. And IF the carb is clean enough to process said fuel.

Carb float level set proper?

Ignition coils are on a wide gap not making good spark?

Did you TEST all these new parts you have been buying? Confirming you have a nice fat blue spark that will jump a quarter of an inch gap min? Don't tell us you checked spark with a Christmas light type spark checker..........

Valves out of spec can make her hard to start. Only takes 2 minutes to check. Well it does on my machines with NO RTV.
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I may recheck the valve but it is a pain with this rtv ****
 
yvon said:
ignition coil set a .011 sharp, get very good spark up to 1/2 inch.
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Sounds great.
yvon said:
Did not check float level, but did not do anything to alter it either.
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If the float level is low, might explain what you are telling us.
yvon said:
engine does definitly pull all kind of fuel and run idle ond full speed.( black smoke if the choke is on). indicating no fuel blockage?
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Black smoke means she is pulling extra fuel as normal with the choke ON. Still need to confirm a solid flow AT the carb inlet.
yvon said:
I may recheck the valve but it is a pain with this rtv ****
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AHHHH!!!!! LOVE IT........ I hate RTV with a passion.

Use a non-hardening sealant.

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Pull the air cleaner and watch the choke plate for fluttering when the engine is cranked. If it is, hold the choke plate closed and see if it fires right up.

If it does fire right up that means that the choke shaft tension spring is weak from age. That usually means a new carburetor is needed.
 
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