21-10-2019, 03:45 PM
If you got your needle valve kit from Burlen, then the three washers included are all alternatives. Fitting then all will reduce the float level quite considerably.. When i overhauled my carb, I chose the washer that was closest to the one that I had removed. Not had any problems since.
To richen the tickover mixture, the little brass screw on top of the carb is screwed in - to weaken, screw it out. Don't go mad with it, it is very sensitive and the slightest turn will make a difference. try screwing yours in about 1/8th of a turn and see if the slight dip goes away. Then fiddle slightly one way or the other to get the most even tickover.
I have checked my plugs recently (nearly new D16's) and they are burning a sort of ash grey too.
To richen the tickover mixture, the little brass screw on top of the carb is screwed in - to weaken, screw it out. Don't go mad with it, it is very sensitive and the slightest turn will make a difference. try screwing yours in about 1/8th of a turn and see if the slight dip goes away. Then fiddle slightly one way or the other to get the most even tickover.
I have checked my plugs recently (nearly new D16's) and they are burning a sort of ash grey too.