Carb Question

Sounds like your carb is overdue for a rebuild -- the inlet needle and seat is probably leaky, and the float is probably heavy. Put in a brass replacement float (Walker number 100-48) and get a kit with a DFV type inlet from www.daytonaparts.com . Carburetor operation and repair manuals and links to training movies and carb repair/modification threads are posted here for free download. If your choke thermostat or pushrod has been brutalised and/or the choke heater modulator is missing or faulty, put in an Electric choke kit number 1234; you will gain adjustability of the choke (which you presently don't have). Tune-up parts and technique suggestions in this thread.