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Breathing Difficulties?


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#1 LilysDad ONLINE  

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Posted October 20, 2012 - 11:56 AM

I have a Kohler K341 that I rebuilt, modifying it slightly; K361 cam and a shaved head. I am still rebuilding the tractor, but decided to start the engine and see how it runs. The tractor doesn't have a battery, yet. So, I jumped it from another tractor. Well, it barely would turn over unless I pulled the spark plug. Jeez, the head isn't milled that much.

So, I decided to use the truck to jump it and if the throttle was closed it would crank right over. If I opened the throttle, it just stopped. Does this sound like valve timing?

#2 Guest_gravely-power_*

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Posted October 20, 2012 - 12:15 PM

I have a Kohler K341 that I rebuilt, modifying it slightly; K361 cam and a shaved head. I am still rebuilding the tractor, but decided to start the engine and see how it runs. The tractor doesn't have a battery, yet. So, I jumped it from another tractor. Well, it barely would turn over unless I pulled the spark plug. Jeez, the head isn't milled that much.

So, I decided to use the truck to jump it and if the throttle was closed it would crank right over. If I opened the throttle, it just stopped. Does this sound like valve timing?


Sounds more like a weak starter. You probably increased the compression to 10:1 or so. the stock starter does not have enough oomph. Ck Brian Miller's site for starters.

#3 MH81 OFFLINE  

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Posted October 20, 2012 - 12:40 PM

Could be a weak starter or bad connections via the jump. Steal a battery out of something else (I know, you were trying not to do that) and try it again. Direct connections always seem to have more punch.

#4 Cvans ONLINE  

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Posted October 20, 2012 - 03:09 PM

Check your point setting. If they are too wide you might be getting pre-ignition and kick back that is stalling the starter. Depending
on how much you shaved your head you might have to retard your timing.

#5 olcowhand OFFLINE  

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Posted October 20, 2012 - 03:11 PM

Also double check your valve clearances. If too wide, the auto compression release can't function.

#6 DH1 ONLINE  

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Posted October 20, 2012 - 03:12 PM

Is the decompressor working?

#7 DH1 ONLINE  

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Posted October 20, 2012 - 03:13 PM

Also double check your valve clearances. If too wide, the auto compression release can't function.


You beat me by 1 minute.

#8 olcowhand ONLINE  

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Posted October 20, 2012 - 03:17 PM

You beat me by 1 minute.


Ya gotta be fast Doug! :smilewink:

#9 Guest_gravely-power_*

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Posted October 20, 2012 - 03:21 PM

The spring on my ACR came off and it would not crank. However, with higher compression ratio I have found that Kohler starters do not work very well.

Edited by gravely-power, October 20, 2012 - 03:26 PM.


#10 LilysDad ONLINE  

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Posted October 20, 2012 - 03:47 PM

I didn't shave it that much. I went by Miller's recommendations and the ratio is only a little better than 8:1. Any more than that and the valves would hit. I'll check the points and put a battery in it. If neccessary, I have another starter.

Edited by LilysDad, October 20, 2012 - 03:48 PM.





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