Generac Power Systems MC - Manual (Page 38)

D.)-Set VOM to ”+DC'’ and to ”50V.”
scale. Connect the positive (+)
meter test probe to the Wire No. 91
terminal on the choke solenoid and
the remaining test probe to frame
ground. Crank the engine - meter
needle should swing upscale and in­
dicate a steady 12 Volts DC.
RESULTS:- Meter does not indicate IZ Volts....Check Wire No. 91 for an
open or shorted condition
Meter indicates 12 Volts DC................Go to Paragraph E
E.)- Set VOM to "+DC” and to ”50V.'' scale. Connect the positive ( + ) me­
ter test probe to the Wire No. 90 terminal on the choke solenoid and
the common (-) test probe to frame ground. Crank the engine - meter nee­
dle should indicate a pulsing voltage as choke pulses open and closed.
RESULTS:- No meter needle movement......Replace Printed Circuit Board
(Model 6897-4:-Replace Choke
Pulse Module [CM]. See Sect-
jL
2 ^ )
Meter test is good but choke
does not actuate.....................Replace Choke assembly
TEST 31:- PRE-CHOKE
With the choke Bi-Metal at ambient
temperature, the carburetor choke
plate should be approximately 1/8
inch away from its full open posi­
tion (toward the closed position).
If necessary, loosen the bi-metal
adjusting screws and move the bi­
metal to obtain this setting. This
is the "Pre-Choke" position.
2.2-16