Battery-Powered Choke
- Disconnect electrical lead from choke cap. Turn ignition switch "OFF". Connect one test lamp lead to positive battery terminal. Attach other lead to choke cap terminal. Test lamp should light. If test lamp lights, proceed to step 3). If test lamp does not light, use jumper wire to connect one end to choke clamp shroud and other end to battery negative terminal.
- Test lamp should glow. If not, connect jumper wire directly to choke cap ground pin; if lamp glows, correct poor connections between choke clamp shroud and choke cap ground pin. If lamp does not glow, replace choke cap.
- Turn ignition switch "OFF". Disconnect electrical connection from oil pressure switch and install jumper wire in electrical harness. Connect test lamp between battery negative terminal and choke cap terminal.
- Turn ignition "ON", but do not start engine. Test lamp should glow. If not, locate and repair open circuit (fuse, fuse link, electrical connector, etc.). Turn ignition switch "OFF".
- Remove jumper wire. Reconnect electrical connector to oil pressure switch. Turn ignition "ON", but do not start engine. Test lamp should not glow. If lamp glows, replace oil pressure switch.
- With test lamp still connected, start engine. Test lamp should glow. If not, replace oil pressure switch.