Pioneer 1200 Maintenance Service Manual page 155

TROUBLESHOOTING AND ELECTRICAL SYSTEM: FE400 ENGINE
Figure 11-43 Primary Coil Resistance – In Vehicle Test
4. Use a multimeter set to 20k Ω (ohms) and measure the resistance of the secondary coil and spark plug
cap together.
4.1. Place the red (+) probe of the meter into the end of the spark plug cap that normally connects to
the spark plug and place the black (–) probe on a clean unpainted surface of the engine or frame
(Figure 11-44, Page 11-36).
4.2. If the resistance is between 12.0k - 14.0k Ω (ohms), the secondary coil and spark plug cap are
within acceptable limits; proceed to step 7 on page 11-37. If the resistance is not between 12.0k -
14.0k Ω (ohms), the spark plug cap and secondary coil must be tested independently from each
other.
5. Test the spark plug cap separately from the secondary coil.
5.1. Remove the rubber gasket (1) on the plug cap (2) by rolling back the gasket onto the spark plug
wire (3) (Figure 11-45, Page 11-36).
5.2. Remove the cap from the wire by turning the cap counterclockwise three or four revolutions while
gently pulling it off the wire (Figure 11-46, Page 11-36).
5.3. Use a multimeter set to 20k Ω (ohms) and place the red (+) probe of the multimeter into the end of
the spark plug cap that normally connects to the spark plug and place the black (–) probe into the
end of the cap with the internal screw (Figure 11-47, Page 11-37). If the resistance is not
between 4.5k - 6.0k Ω (ohms), the cap has failed and must be replaced. Proceed to the next step
with the spark plug cap still removed.
2003 Pioneer 1200/1200SE Gasoline Vehicle Maintenance and Service Manual
WAVETEK 5XL
V V
OFF
1000 500
200
200
20
200
2 2m
200
20
m m
200
2000
m
k
200k
20k 200
Ω
2k A
Ω
!
V ! COM 200nA
MAX
1000 ---
FUSED
750V
11
Test Procedures
Page 11-35