Quote:
Originally Posted by Joe's Garage
Try working the throttle - with the engine OFF - using the short length of cable that is exposed right where it attaches to the carburetor.
It's sometimes easier to do this with the throttle springs removed, but REMEMBER to reattach the springs before you close the hood.  
You may find that the 'stiffness' is the return spring on the secondary throttle shaft offering more resistance when you push into the secondaries.
If it is a cable problem, you will be able to feel the binding in the cable. In that case, disconnect the cable at the carb attachment and check the carb alone for smooth operation.
Good luck! |
this is common on q-jets. all my cars with late 70's q-jets do this, i can feel it in the pedal when the secondaries just start to open. no cable or pedal bushing binding, it just takes a little more force to open the secondaries.
not saying that is your issue, its a good idea to check all the things mentioned above, but if there is no binding in the cable or pedal bushing issues, it could just be the resistance of the secondaries youre feeling.