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Adjusting Tool

Zenith Stromberg Carburetter
Some models of bottom adjustment CD carburetters employ a castellated bush which projects from the carburetter base. A steel cap may clip over the castellations. This cap must be removed prior to adjustment. When this is done, tool 501429 locates on the castellations and enables the bush to be rotated. Raising the bush will weaken the idle mixture and lowering it will cause enrichment.