Reply To: Alternative to a Amal 397 carb to fit howard 810cc engine.

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November 21, 2019 at 8:21 am #32690
charlie
Keymaster

If the choke is operating on its own it sounds as if it is loose, wear around spindle could be allowing air to be sucked in as would wear around throttle spindle. This will alter mixture and make it impossibe to set it correctly.