Jacobsen HR5111 Service And Repair Instructions page 274

ELECTRICAL SYSTEM
ADJUSTMENT (See Figure 10I-2)
1. Disconnect solenoid rod at lever.
2. Turn ignition switch to START momentarily with-
out starting engine. This will seat solenoid plunger.
Leave ignition switch in RUN position.
3. Adjust and connect rod at stop lever as necessary
so that there is a gap between lever and stop with
solenoid engaged.
SECTION 10I. SOLENOIDS
Figure 10I-2. Fuel Solenoid Adjustment
10I-2
4. After adjustment, turn ignition switch to OFF.
NOTE
If not adjusted properly, solenoid will not "hold
in" when ignition switch is returned to the run
position after starting.