[Brian M]

I was goin today, punched it and when I let off, the engine didnt slow down hardly at all. It was at about 3300 with the clutch in. Turns out the vac secondaries were stuck open a little bit. Its a fairly new carb, less than a year old. Would a spray down of carb cleaner fix it or would I need to take it apart?

 

[gregaust]

You should check the linkage between the primary + secondary on the drivers side(thats in your country ,not here).When the primary throttles are closed the little link should push the secondary's closed.You may have to get some pliers and give the little link a tweek .

 

[Fomoco8]

Check the throttle shaft on the secondary side and see if the thing is bent or possibly the plates have come loose or shifted, vacuum port in carb could be blocked, and if you run a carb spacer check to see if its installed correctly, I put one on upside down once and did that exact same thing