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Kohler K161 Hard Start And No Power


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#1 1978murray OFFLINE  

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Posted August 04, 2014 - 02:15 PM

I just got my cub cadet original running. I cleaned the points, installed new condenser, and rebuilt the carb. I have the carb set to factory specs 3 turns on high and 1.5 on low, i also tweaked them a little from that.

 

anyway the tractor is really hard to start cold or warm. always needs choke and lots of cranking.  also when mowing or going up hills the engine bogs way down and sometimes stalls.  I have adjusted the governor and I have it set at 3600 rpm max.  The engine does not smoke, but feels a little low on compression.  I never had a worn out engine not smoke. any ideas guys



#2 Bill 76 ONLINE  

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Posted August 04, 2014 - 03:03 PM

Hard starting and needing choke when warm could be a leaking intake gasket,low on compression could be leaking head gasket or valves.you say you just got it running  if the engine has been setting for some time maybe the rings are stuck,Try some marvel mistery oil down the plug hole.

What does the spark plug look like.White like new it's to lean--Light tan is just right--Black is to rich or oil fouled  


Edited by Bill 76, August 04, 2014 - 03:09 PM.

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#3 1978murray OFFLINE  

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Posted August 04, 2014 - 04:24 PM

it has a new intake gasket, that engine has a compression release i believe so that could be acting up maybe.  the plug was fouled when i took it out before i started it. I forgot to mention there is the plug from my amf in it. which looks good



#4 Trav1s ONLINE  

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Posted August 04, 2014 - 04:55 PM

Is this machine restored?  If you can spray a bit of carb cleaner around the carb without damaging paint while running you can easily find a vacuum leak.  If the engine speeds up when you spray the cleaner then you have a leak. 



#5 1978murray OFFLINE  

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Posted August 04, 2014 - 05:15 PM

Is this machine restored?  If you can spray a bit of carb cleaner around the carb without damaging paint while running you can easily find a vacuum leak.  If the engine speeds up when you spray the cleaner then you have a leak.


The machine is not restored. So I will try that

#6 Trav1s ONLINE  

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Posted August 04, 2014 - 05:28 PM

The carbs are known to wear around the throttle and choke shafts.  Enough wear causes them to run lean.



#7 1978murray OFFLINE  

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Posted August 06, 2014 - 03:15 PM

went out today and sprayed some carb cleaner all over carb and where it mounts to the engine while it was running, the engine did not change how it was running.  Once it starts the tractor runs good until you put it under load.  I was mowing my yard today in 1rst and 2nd gear.  had the deck set at once notch from its highest setting. and the grass was not that tall. but as soon as i would climb my little hill it would bog down.  I readjusted the governor and tried again with the same results. any ideas



#8 1978murray OFFLINE  

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Posted August 06, 2014 - 08:01 PM

Timing was set 27 degrees btdc. Got it as close to 20 as I could get. Its set around 22. It was hard to read with the timing light

#9 bread320i OFFLINE  

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Posted August 06, 2014 - 09:52 PM

Have you tried the "static timing" method?

http://www.onlycubca...read.php?t=4405



#10 1978murray OFFLINE  

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Posted August 06, 2014 - 11:11 PM

Have you tried the "static timing" method?
http://www.onlycubca...read.php?t=4405


Yeah that got me to the 27* btdc then I did the light method




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