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4100 throttle butterfly orientation

June 21 2012 at 6:19 AM
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  (Login Dano670)
from IP address 132.3.37.68

 

Carb is the 4100 with the 1.08 venturis. I took my carb off to replace the throttle plate bushings. Well I wrote on each each of the butterflies Primary or Secondary, Left or Right. Well I wrote with a sharpie and the carb cleaner erased what I wrote.

So I assembled it the best I can, and I am pretty sure I got it wrong. Each of the butterflies has dimples and I am guessing they are important or they probably wouldn't be there. I tried a couple different ways but I suspect I installed the secondaries incorrectly (dimples up).

I also heard that the primaries are thinner on one side, but I didn't notice that on mine. I will check when I take the carb apart again today.

Any tips?


 
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Responses

  1. Dimples go down if you are looking at the base of the carb.... - Ed Jenkins on Jun 21, 9:04 PM
  2.  
  3. dimples go down ........additional info........ - Ed Jenkins on Jun 26, 8:05 PM
    1. The edges of throttle blades... - Lee on Jun 29, 3:34 PM
     
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