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1997 bf90a no vacuum on daspot

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free_time

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bf90a 1997 i have no vacuum on

bf90a 1997 i have no vacuum on the dashpot rail at idle or higer rpm's do you have any ideas thank you mike
 
Ill have to pull the carbs off

Ill have to pull the carbs off to get to them so i can check it wont I. I appreciate your time
thanks again Mike
 
yeah i checked the valve and p

yeah i checked the valve and pot both ok but i have no vacuum at rail at all 0. i can blow back through the hose but like u say if its a small crack in a hose u would not be able to tell. ill pull them as an assy. and check it out.
 
You will only have vacuum at t

You will only have vacuum at that point when the engine is brought back to idle after being run at speed. The dashpot will pull up to give the engine a small amount of fuel to keep from stalling.
 
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