- Alternator control connector pin 2
- Alternator output terminal
- Crankcase negative (-) terminal

Result

Action

OK

Proceed to test 2

Faulty

Rectify fault, proceed to test
2

2 Check fuses:
- Main fuse 40 A

OK

Proceed to test 3

Faulty

Replace fuse, proceed to test 3

3 Check alternator control Voltage:
- Disconnect alternator control
connector
- Make sure the master ignition switch
(if fitted) is turned to the ON position
- Turn ignition ON
- Make sure the engine stop switch is in
the RUN position
- Disarm the alarm if fitted
- Make sure the instruments turn on
and the gear position is displayed
- Measure the Voltage between
alternator control pin 2 and battery
negative (-) terminal

Same as
battery
Voltage (12.5 V
+/- 0.5 V)

Turn the ignition off, reconnect the
alternator control connector. Proceed to
test 4

Faulty

Turn the ignition off, proceed to test 4

4 Disconnect the battery and check cable
continuity:
- Battery negative (-) cable ring terminal
to alternator metal housing (ground)
- Battery positive (+) cable ring terminal
to alternator output terminal
- Alarm connector 1 to Alternator
control connector pin 2
- Engine ECM Connector B, pin B01 to
Alternator control connector pin 2

OK

Reconnect the battery leads, positive (red)
lead first and proceed to test 5

Open circuit

Locate and rectify wiring fault.
Reconnect the battery leads, positive (red)
lead first and proceed to test 5

5 Ensure the alternator control connector
is plugged and secured. Run the engine.
Check the charging Voltage at 2,000
rpm between:
- Alternator output terminal and
alternator metal housing (ground)
- Alternator output terminal and
battery negative (-)
- Battery positive (+) and battery
negative (-)

13 V - 15 V

Action complete - quit test

Fault still
present

Proceed to test 6

Technical Bulletin 192 Issue 2

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Test
6 Measure voltage drop in the charging
circuit.
Run the engine at 2,000 rpm.
Turn all loads on (including heated grips,
heated seats and fog lights if fitted).
Measure the voltage between:
- Battery negative (-) cable ring terminal
and alternator metal housing (ground)
- Battery positive (+) cable ring terminal
and alternator output terminal

Technical Bulletin 192 Issue 2

Result
OK - Voltage
drop less than
0.5 V
Faulty Voltage drop
greater than
0.5 V

Action
Contact Triumph service
Provide details of results and
observations of any test steps that have
failed.

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Circuit Diagram

8

16
32
48

1
17
33

1

2

3

4

11

1

5
1 2

7

5

B01

BO

BO

9

2

17

12

6

6

14

18

29
41

30

37

42

53

6

1

B

2
BO

A37

G

A14

10

GN

5
2

4
1

G

2

1

G

Power to chassis ECM through
Fuses PS1 - PS5 (not shown)

6

1

13

7

2
N
40A

1

N

2

3
1

1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.

+

-

B

1

Battery
Main fuse
Alternator
Ignition master switch/shorting link connector
Switch housing sub harness connector (10 way)
Alarm
Engine ECM
Engine ECM connector B
Alternator control
Chassis ECM
Chassis ECM connector A

Technical Bulletin 192 Issue 2

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Item:

192.9

Description:

Engine Oil and Filter Change

Model Affected:

Speed Triple S, Speed Triple RS

A new procedure for the engine oil and oil filter change has been introduced for the above models.
It has come to our attention that a small number of the above models oil pressure warning light did not
extinguish after an engine oil and oil filter change. The cause of this is an air lock between the oil pump and
oil filter.
To prevent the air lock, dealers should fill the engine with oil before the oil filter is fitted. The revised
procedure is described below.
At the end of this bulletin a revised handbook oil and filter change procedure is attached, this should be
printed and given to customers when collecting their motorcycles. The handbook will be updated as soon as
possible.

Warning
Prolonged or repeated contact with engine oil can lead to skin dryness, irritation and dermatitis. In
addition, used engine oil contains potentially harmful contamination which can cause cancer. Wear suitable
clothing and avoid skin contact.
The engine oil and filter must be replaced in accordance with scheduled maintenance requirements.

Caution
Do not pour engine oil on the ground, down sewers or drains, or into watercourses. To prevent pollution of
watercourses etc., dispose of used oil sensibly. If in doubt contact your local authority.
1.
2.

Warm up the engine thoroughly, and then stop the engine.
Place an oil pan beneath the engine.

Warning
The oil may be hot to the touch. Contact with hot oil may cause the skin to be scalded or burned.
3.

Remove the oil drain plug.

2

cggs_1

1.
2.

4.

1

Oil filter
Oil drain plug

With the motorcycle on level ground, and on the side stand, allow the oil to completely drain.

Technical Bulletin 192 Issue 2

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5.

Unscrew and remove the oil filter using service tool T3880313.

1

2
cggs_2

1.
2.

6.
7.
8.

9.
10.
11.

Oil filter
T3880313 - Oil Filter Wrench

Dispose of the old oil filter in an environmentally friendly way.
After the oil has completely drained out, fit a new sealing washer to the drain plug. Fit and tighten the
plug to 25 Nm.
Fill the engine with a 10W/40 or 10W/50 semi or fully synthetic motorcycle engine oil that meets
specification API SH (or higher) and JASO MA, such as Castrol Power 1 Racing 4T 10W-40 (fully synthetic)
engine oil, sold as Castrol Power RS Racing 4T 10W-40 (fully synthetic) in some countries.
Apply a smear of clean engine oil to the sealing ring of the new oil filter.
Fit the oil filter and tighten to 10 Nm.
Start the engine and allow to idle.

Caution
Raising the engine speed above idle before the oil reaches all parts of the engine can cause engine damage
or seizure. Only raise engine speed after running the engine for 30 seconds to allow the oil to circulate
fully.
12.

Ensure that the oil pressure warning light extinguishes shortly after starting.

Caution
If the engine oil pressure is too low, the low oil pressure warning light will illuminate. If this light stays on
when the engine is running, stop the engine immediately and investigate the cause. Running the engine
with low oil pressure will cause engine damage.
13. Stop the engine and check the oil level. Adjust if necessary.
Please mark your copy of the Service Manual with this information. For electronic service manuals, store
this information in a readily accessible place and refer to it when working on the relevant Triumph
motorcycle. This information will be included in the next service manual update.

Technical Bulletin 192 Issue 2

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Item:

192.10

Description:

Service Manual Update

Model Affected:

Street Twin, Street Twin - A2 restricted licence Version, Street Scrambler, Street
Cup, Bonneville T100, Bonneville T100 Black, Bonneville T120, Bonneville T120 Black,
Thruxton 1200, Thruxton 1200R

The Service Manual has been updated for the following models:
• Street Twin
• Street Twin - A2 restricted licence Version
• Street Scrambler
• Street Cup
• Bonneville T100
• Bonneville T100 Black
• Bonneville T120
• Bonneville T120 Black
• Thruxton 1200
• Thruxton 1200R.
When using the Service Manual, ensure the latest version is being used and any printed pages replaced
with the latest version.

Circulation
Initial and date when read and return to central file holder
Service Manager Parts Manager

Technical Bulletin Issue 2

Sales Manager

Workshop
Supervisor

Technician 1

Technician 2

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