This arrangement works "Two stroke" carb and no diaphragm springs required!





Seems very happy on a 4 cell pack, with a big fat blue spark so staying with that for now. I'll bear it in mind and try at some point though.


The carb you've suggested........[:@]
WT 454 is only 20/64ths venturi. This will definitely affect power badly []
No accelerator pump on it either []