Quote:
Originally Posted by 51 MERC-CT
If by "heat riser" you mean the tube that is located on the lower part of the intake.
Blocking that tube will prevent hot air from reaching the heated element in the automatic choke as it should. This will cause the choke to stay closed longer than it should and thus, run rich.
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Yes, that is the tube that has been blocked off. I agree, and I thought of that when I initially blocked off the heat riser. I decided to turn the choke to totally lean, thereby neutralizing the by-metal strip and in essence turning it off. It doesn't affect the starting since the garage never drop below 55 degrees.
There is a good chance that I have corrected the issue, but thought since I was working on the carb, I would look for any other caused of running rich. I have already reduced the size of the jets due to my altitude 8300 ft.
The weather has turned, delaying my initial test run. Maybe later this week.
Thank you for the suggestion.