SRAN 609 – Obstructed MAP Hose May Cause Engine Stall – 2022-2024 Triumph Trident & Tiger Sport Motorcycles

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August 16, 2023 NHTSA CAMPAIGN NUMBER: 23V583000

Obstructed MAP Hose May Cause Engine Stall

The electronic control unit (ECU) will adjust the air/fuel ration based on inaccurate data, causing an engine stall and increasing the risk of a crash.

 

NHTSA Campaign Number: 23V583

Manufacturer Triumph Motorcycles America, Ltd.

Components ENGINE AND ENGINE COOLING

Potential Number of Units Affected 7,541

 

Summary

Triumph Motorcycles America, Ltd. (Triumph) is recalling certain 2022-2024 Trident and Tiger Sport motorcycles. The manifold absolute pressure (MAP) hose may have an obstruction, causing incorrect air pressure readings by the MAP sensor.

 

Remedy

Dealers will replace the hose, free of charge. Owner notification letters are expected to be mailed August 31, 2023. Owners may contact Triumph’s customer service at 1-678-854-2010. Triumph’s number for this recall is SRAN 609.

 

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

 

Check for Triumph Recalls

 


WHAT IS THE PROBLEM?

An obstruction can change the air pressure arriving at and recorded by the MAP Sensor. The MAP sensor requires accurate manifold air pressure readings in order to send correct information to the ECU. The ECU will adjust the air/fuel ratio based on the data received from the MAP sensor. On defective motorcycles inaccurate MAP data can lead to unstable idle and sometimes an engine stall, increasing the risk of a crash.

 

WHAT WILL TRIUMPH DO?

To address this condition, Triumph is launching a new recall as described in the above Safety Recall Action Notice.

All arrangements for updating our computer systems have been completed.

 

WHAT SHOULD YOU DO?

All affected motorcycles are to be repaired in accordance with the above Safety Recall Action Notice.

 


Safety Recall Action Notice 609
Issue 01 – 08.2023

 

Background Information

Dealers are requested to install a replacement manifold spigot and MAP sensor hose assembly to the inlet manifold as described in the procedure below.

 

Identification of Affected Motorcycles

Tiger Sport 660 and Trident 660 motorcycles in the above VIN range.

 

Replace the Manifold Spigot and MAP Sensor Hose

WARNING

Make sure the motorcycle is stabilised and adequately supported.
Do not support the motorcycle on any ancillary component, the exhaust system or any other non structural parts of the motorcycle frame.
A correctly supported motorcycle will help prevent it from falling.
An unstable motorcycle may fall resulting in motorcycle damage, serious injury or death.

 

Removal

Remove the following components as described in the Service Manual:

 

For Trident

 

For Tiger Sport

 

All Models

NOTICE

For Tiger Sport, the fuel tank does not need to be removed for the airbox removal.

1. Detach the MAP sensor and the purge valve hoses from the spigot on inlet manifold

2. Release the fixing, detach the MAP sensor from the bracket and disconnect the MAP sensor hose.

3. Remove and discard the MAP sensor hose.

NOTICE

Note the position of the spigot’s two O-rings for installation.

4. Release the fixing and remove the spigot and collect the two O-rings. Retain the spigot and the two Orings as described in the Genuine Parts Return table.

NOTICE

The left hand outrigger cover is removed to allow access for securing the new MAP sensor drain hose to the frame.

5. Remove the swinging arm pivot cover from the left hand outrigger.

6. Release the fixing, detach the retaining clips and remove the left hand outrigger cover.

 

Installation

NOTICE

Make sure the new O-rings are fitted to the spigot pipes without the bulge on the end of them.
When fitting the spigot to the inlet manifold, make sure the spigot pipes without the bulge are inserted into the inlet manifold.

1. Fit the two new O-rings to the new spigot as noted for removal.

2. Fit the spigot to the inlet manifold and tighten the fixing to 5 Nm.

3. Assemble the six components of the MAP sensor hose assembly as shown in the illustration below.

4. Fit the drain hose plug to the open end of the drain hose.

NOTICE

Before fitting the MAP hose assembly, make sure that the clamp securing the breather hose to the engine breather cover has its lugs pointing towards the right hand side of the motorcycle.

5. Check the position of the breather hose clamp. If required, reposition so the clamp lugs are pointing to the right hand side of the motorcycle.

NOTICE

When fitting the MAP hose assembly to the spigot on the inlet manifold, make sure the blanking cap on the four way connector is pointing to the left hand side of the motorcycle.
The hose for the MAP sensor must be from the top of the four way connector.

6. Attach the MAP sensor and the purge valve hoses to the spigots on the inlet manifold.

7. Fit the MAP sensor hose to the MAP sensor.

8. Fit the sensor to the bracket, tighten the fixing for:

  • Trident 660 to 5 Nm.
  • Tiger Sport 660 to 2.5 Nm.

NOTICE

Do not over tighten the cable tie.
Over tightening the cable tie will crush the MAP sensor drain hose.

9. Route the drain hose to the left hand side of the frame, as shown in the illustration below.

10. Secure the drain pipe to the frame with a cable tie as shown in the illustration below.

11. Fit the left hand outrigger cover and tighten the fixing to 3 Nm.

NOTICE

Note that on the inside surface of the pivot cover the are L and R markings.
When fitting the left hand cover, make sure that the L marking aligns with the alignment mark on the outrigger cover.

12. Refit the swinging arm pivot covers, using the alignment marks.

 

Install the following components as described in the Service Manual:

All Models

 

For Trident

 

For Tiger Sport

 

Maintenance

At every 10,000 mile service the MAP sensor drain hose is to be drained using the procedure described in Appendix A.

 

MAP Sensor Drain Hose – Draining

The MAP sensor drain hose is to be drained every 10,000 miles.

NOTICE

For best results use either a vacuum brake bleeding kit, a vacuum hand pump or an oil and brake fluid syringe to extract the oil from the drain hose.

Perform the following operations

NOTICE

To prevent damage to the MAP sensor, the MAP hose must be detached from the MAP sensor.

1. Release the fixing, detach the MAP sensor from the bracket and disconnect the MAP sensor hose.

2. Remove the swinging arm pivot cover from the left hand outrigger.

3. Release the fixing, detach the retaining clips and remove the left hand outrigger cover.

4. Remove the cable tie securing the drain hose to the frame.

5. Remove the drain hose plug and connect a suitable vacuum device or syringe to extract any oil from the drain hose.

6. When the oil is drained, refit the drain hose plug.

NOTICE

Do not over tighten the cable tie.
Over tightening the cable tie will crush the MAP sensor drain hose.

7. Route the drain hose to the left hand side of the frame, as shown in the illustration below.

8. Secure the drain pipe to the frame with a cable tie as shown in the illustration below.

9. Fit the left hand outrigger cover and tighten the fixing to 3 Nm.

NOTICE

Note that on the inside surface of the pivot cover the are L and R markings.
When fitting the left hand cover, make sure that the L marking aligns with the alignment mark on the outrigger cover.

10. Refit the swinging arm pivot covers, using the alignment marks.

11. Fit the MAP sensor hose to the MAP sensor.

12. Fit the sensor to the bracket, tighten the fixing for:

  • Trident 660 to 5 Nm.
  • Tiger Sport 660 to 2.5 Nm.

Perform the following operations

 


Chronology :

Feb23: Awareness of First customer complaints via Warranty. Commence monitoring.

Mar-Apr23: Quality Dept commence investigation, parts returns. Exemplar testing to verify complaints.

July23: Conclusion of testing to verify symptom and to confirm remedy.

09Aug23: Decision to organise a voluntary recall.

 


6 Affected Products

Vehicles

MAKE MODEL YEAR
TRIUMPH TIGER SPORT 2022-2024
TRIUMPH TRIDENT 2022-2024

 


5 Associated Documents

Defect Notice 573 Report

RCLRPT-23V583-3199.PDF 214.114KB

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Recall Acknowledgement

RCAK-23V583-1883.pdf 646.229KB

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Remedy Instructions and TSB

RCRIT-23V583-3515.pdf 518.073KB

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Triumph – Notice Released to Dealers – August 2023

RCMN-23V583-7166.pdf 221.815KB

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Recall 573 Report – August 2023

RCLRPT-23V583-5032.PDF 214.284KB

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Latest Recalls Documents

For the Latest and Most Recent Recalls Information Visit the link below…

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=23V583&docType=RCL

 


 

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