or rather notches. In a recent post I asked for assistance with a Shadow engine which would not start until it burst into life after 10/15 minutes of cranking. The very helpful replies directed me towards the engine flooding and running rich fouling up the plugs. In my quest to get this sorted I begun to tackle the source of the problem the 276 and 289 Amal carbs. First off were the floats as both carbs would flood and leak. The right hand carb as you sit looking down had the float needle on the top notch and as the float was at it's highest setting it would rest on the bottom of the trickler when full of fuel thereby not allowing the needle to seat properly in it's jet and cut off the fuel. On the left side all looked OK and I note the needle cannot be pulled out as it seems to be connected to something which cuts off the fuel when the float goes up.
One thing of note was the float on the right side sat higher in the chamber when full of fuel than the left side but the trickler on the right side had a longer stub than the left. I put the needle on the lower notch on the right side so it would not touch the trickler end, however it sits very close to it. I am wondering whether the tricklers should be swopped over as the longer one sits very close to the float while the other has much more of a gap. Common sense would say swop but before doing so I thought I would put it out there as Amal fitted them in this way.
One thing of note was the float on the right side sat higher in the chamber when full of fuel than the left side but the trickler on the right side had a longer stub than the left. I put the needle on the lower notch on the right side so it would not touch the trickler end, however it sits very close to it. I am wondering whether the tricklers should be swopped over as the longer one sits very close to the float while the other has much more of a gap. Common sense would say swop but before doing so I thought I would put it out there as Amal fitted them in this way.