B&S 3.5hp Quantum won't slow down?
My 3.5hp Briggs & Stratton starts fine, but I can't get it to run below maximum revs.
The controls on top of the carb all move, but I can't make sense of how they are supposed to link up, does anyone know of a diagram/drawing for these please?
With very careful movement of the throttle I can get the revs to drop a little, but this is accompanied by what I understand as "hunting" and backfiring through the carb.
Is this connected with the throttle linkages on top of the carb? As I said these are connected, but don't seem to operate smoothly.
Any ideas would be welcome!
I have also (mistakenly) added this in the answer column to a previous question - sorry!
Colin Tayler, September 2008