Section 6

DIAGNOSTIC TESTS

TEST 34 - TEST START STOP RELAY WIRING

PROCEDURE:

86

15B

167

BLK

1.

Set voltmeter to the diode test range.

0

229

83

BLK

2.

Disconnect Wire 229 from the Start Stop Relay (SSR).

 

 

 

00.00

3.

Connect the positive meter test lead to Wire 229 previous-

 

 

 

 

 

ly removed. Connect the negative meter test lead to frame

 

 

 

 

 

ground. See Figure 6-47. Place the Start-Run-Stop Switch to

 

 

 

TR2

 

the start position. The meter should read approximately 1.0

TB1

 

 

 

 

 

 

 

VDC. If the correct voltage is indicated, stop testing.

 

 

 

TR1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.0 vdc

 

 

 

J2-1

 

 

 

 

 

 

 

 

 

J2-12

 

 

 

 

 

 

 

18

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MAKE SURE THE TEST

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PROBE CONNECTOR IS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MAKING CONTACT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WITH THE CONNECTOR.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

2

 

4

15B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DOUBLE CHECK TO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MAKE SURE THAT THE

 

5

 

6

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TIP IS SHARP.

 

 

9

10

 

12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

J2 HARNESS CONNECTOR

 

 

 

15

 

13 SSR

14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

 

 

 

229

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 6-48. – Testing Wire 229 Between J2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Connector and Terminal Block 1 (TB1)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 6-47. – Testing Wire 229 to Ground

 

Test 35 - Check and Adjust Ignition

4. Set voltmeter to measure resistance.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Magnetos

5. If voltage was not measured in Step 3 connect one meter test

PROCEDURE:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

lead to Wire 229 removed from the SSR. Connect the other

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1. See Figure 6-49. Rotate the flywheel until the magnet is under

 

meter test lead to Wire 229 at the Terminal Block 1 (TB1).

 

 

the module (armature) laminations.

 

Continuity should be measured. If continuity is not measured

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

repair or replace Wire 229 between SSR and TB1. Remove the

2. Place a 0.008-0.012 inch (0.20-0.30mm) thickness gauge

 

J2 connector the printed circuit board. Connect one meter test

 

between the flywheel magnet and the module laminations.

 

lead to pin location J2-8 (Wire 229) connect the other meter

3. Loosen the mounting screws and let the magnet pull the mag-

 

test lead to Wire 229 at TB1. See Figure 6-48. Be careful not

 

 

neto down against the thickness gauge.

 

to damage the pin connectors with the test leads. Continuity

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

should be measured. If continuity is not measured repair or

4. Tighten both mounting screws.

 

replace Wire 229 between the J2 connector and TB1.

5. To remove the thickness gauge, rotate the flywheel.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RESULTS:

 

 

 

 

 

 

 

 

 

 

 

 

 

6. Repeat the above procedure for the second magneto.

1. If Step 3 passed refer to Flow Chart.

7. Repeat Test 29 and check for spark across the spark tester

2. If Step 3 failed and Step 5 passed replace the printed circuit

 

gap.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

board.

 

 

 

 

 

 

 

 

 

 

 

 

 

8. If air gap was not out of adjustment, remove engine ground

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

harness from magnetos. Repeat Test 29. If sparking now occurs

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

replace engine ground harness.

Page 56

Page 58
Image 58
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