Don T.,
Thanks for sharing your data!
Strait H.,
Yep, that sounds like another of the the elusive 'dual tube' Kohler engines. Thanks for sharing your data!
Your lower, LH (carb side) dipstick near the points cover should have full/add marks on it, correct?
Interesting, yours is only the 3rd K301 (12HP) 'dual tube' engine that's been reported.
<font color="0000ff">Would you also please tell me what model Cub your 'dual tube' engine came in and the tractor serial number?</font>
As Bruce N. mentioned, that looks to be a past owner/operator's replacement plug for the top tube.
It is not what was a typical 'factory issue' top stick.
<font color="0000ff">Maybe someone could post a pic of their top tube stick with the wording visible?</font>
I also originally thought that a riveted data plate meant it was NOT a replacement engine.
However, that theory has not proven true.
About half of the riveted plate engines we've documented have a Spec # which indicated the engine was intended as a 'Replacement/Universal Service Engine'.
It is also my understanding that a Kohler engine painted black was to indicate it was a Replacement engine.
Your Spec # 47376b indicates that it IS a Replacement engine!
<font color="0000ff">Did you think yours was a Replacement engine?</font>
Ryan Wilke