TROUBLESHOOTING AND ELECTRICAL SYSTEM: 800 AND 810 GAS
Test Procedures
Page 11-26
2007-2008 XRT 800, 810 and 850 Maintenance and Service Manual
11
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 11-28, Page 11-26)
. If the resistance is not between 4.5k
- 6.0k ohms, the cap has failed and must be replaced. Proceed to the next step with the spark plug
cap still removed.
6. Test the secondary coil separately from the spark plug cap.
6.1. Using a multimeter set to 20k ohms, place the red (+) probe of the meter into the end of the spark
plug wire and place the black (–) probe on a clean unpainted surface of the engine or frame
(Figure 11-29, Page 11-27)
. If the resistance is between 6.0k - 11.0k ohms, the secondary coil is
within acceptable limits. If the resistance is not between 6.0k - 11.0k ohms, bench test the ignition
coil.
7. If the preceding procedures indicate that the ignition coil resistance readings are within acceptable
ranges, but the coil fails to function properly, proceed to the following bench test procedures.
Ignition Coil – Bench Test
1. Remove the coil from the engine.
See Ignition Coil Removal, Section 13, Page 13-24.
2. Using a multimeter set to 200 ohms, measure the primary coil resistance.
2.1. Place the black (–) probe of the meter on the terminal on the ignition coil (1), and place the red (+)
probe on the core (2)
(Figure 11-30, Page 11-27)
.
2.2. If the resistance is not between 0.6 - 1.7 ohms, replace the ignition coil.
3. Using a multimeter set to 20k ohms, measure the resistance of the secondary coil and spark plug cap
together.
3.1. Place the red (+) probe of the meter into the end of the spark plug cap that normally connects to
the spark plug (3) and place the black (–) probe on the core (2)
(Figure 11-31, Page 11-27)
.
3.2. If the resistance is between 12.0k - 14.0k ohms, the secondary coil and spark plug cap are within
acceptable limits; proceed to step 6 on page 11-28. If the resistance is not between 12.0k - 14.0k
ohms, the spark plug cap and secondary coil must be tested independently from each other.
Figure 11-28 Spark Plug Cap Test
2m
20
m
200
m
2k
200
200
200
200
20
2
200
m
500
20k
200k
2000
k
1000
OFF
WAVETEK
5XL
V
V
V
A
!
!
COM
200nA
MAX
1000 ---
750V
FUSED
2
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