Starter solenoid relay location

imcool

Turbocharged
Joined
Feb 22, 2022
Messages
764
Ride
Rocket 3R 2022
nothing is wrong with bike but I am wondering If someone knows where is this solenoid located on bike, its a very critical component in order to start the bike and would like to know where its located.

I tried searching forums, there was a member who had this replaced but cant find that post/thread anymore.
I also tried searching service/factory manual. No mention about 'how to replace starter relay/solenoid'

is it actually ON the starter motor? I dont think so as the wires are too short on relay in the photo(?)
Picture of relay from ebay.
in other photo its #28
TRiumph part number - T1310008

MODEL ROCKET 3 R / GT 2020+ 2500


Thankyou
1757777140876.png
relay.jpg
 
Last edited:
think of the starter relay as an electrical switch (location to me is unknown) that draws very little currant with very small wires when the relay closes then it carries a larger load with bigger wires to the starter solenoid bigger contacts and the plunger make contact with the starter contacts which puts full battery voltage to the starter.
the starter solenoid is on top of the starter.
the whole prosses starts with minimum volts and end in maximum battery output.
hth
 
From your friendly AI Co-Pilot:
The relay (Triumph part T1310008) is mounted in front of the battery box, tucked behind the plastic inner tray and wiring harness. It is not on the starter motor itself — the forum user was correct to question that .

To reach it, you must remove the seat and battery, then access the forward cavity of the battery compartment.


🛠️ How to Replace the Starter Relay (Step‑by‑Step)

1. Remove the seat

  • Unlock and lift the seat off.
  • This exposes the battery compartment.

2. Disconnect and remove the battery

This gives you the working room Triumph never mentions in the manual.

  • Disconnect negative (-) first.
  • Disconnect positive (+) next.
  • Lift the battery out.

3. Remove the battery tray / inner cover

This is the step most owners miss — the relay sits in front of this tray.

  • Remove the screws holding the plastic inner tray.
  • Lift it upward and out.
  • You’ll now see the wiring harness cluster in front of the battery cavity.

4. Locate the starter relay

You’ll find:

  • A small relay with two small-gauge trigger wires and two heavier-gauge output wires (as described in the forum explanation of how the relay works ).
  • It is clipped into a small bracket or rubber holder.

5. Remove the relay

  • Unclip it from the bracket.
  • Disconnect the two connectors:
    • Low‑current control connector
    • High‑current output connector

6. Install the new relay

  • Plug in both connectors firmly.
  • Clip the relay back into its bracket.
  • Ensure wires are routed cleanly and not pinched.

7. Reassemble

  • Reinstall the battery tray.
  • Reinstall the battery (positive first, negative last).
  • Reinstall the seat.

8. Test

  • Turn the ignition on.
  • Confirm the bike cranks normally.
 
From your friendly AI Co-Pilot:
The relay (Triumph part T1310008) is mounted in front of the battery box, tucked behind the plastic inner tray and wiring harness. It is not on the starter motor itself — the forum user was correct to question that .

To reach it, you must remove the seat and battery, then access the forward cavity of the battery compartment.


🛠️ How to Replace the Starter Relay (Step‑by‑Step)

1. Remove the seat

  • Unlock and lift the seat off.
  • This exposes the battery compartment.

2. Disconnect and remove the battery

This gives you the working room Triumph never mentions in the manual.

  • Disconnect negative (-) first.
  • Disconnect positive (+) next.
  • Lift the battery out.

3. Remove the battery tray / inner cover

This is the step most owners miss — the relay sits in front of this tray.

  • Remove the screws holding the plastic inner tray.
  • Lift it upward and out.
  • You’ll now see the wiring harness cluster in front of the battery cavity.

4. Locate the starter relay

You’ll find:

  • A small relay with two small-gauge trigger wires and two heavier-gauge output wires (as described in the forum explanation of how the relay works ).
  • It is clipped into a small bracket or rubber holder.

5. Remove the relay

  • Unclip it from the bracket.
  • Disconnect the two connectors:
    • Low‑current control connector
    • High‑current output connector

6. Install the new relay

  • Plug in both connectors firmly.
  • Clip the relay back into its bracket.
  • Ensure wires are routed cleanly and not pinched.

7. Reassemble

  • Reinstall the battery tray.
  • Reinstall the battery (positive first, negative last).
  • Reinstall the seat.

8. Test

  • Turn the ignition on.
  • Confirm the bike cranks normally.
Thanks so much for replying,

where did you find that information?


i want to find which screws/bolts the steps are talking about here?

3. Remove the battery tray / inner cover

This is the step most owners miss — the relay sits in front of this tray.

  • Remove the screws holding the plastic inner tray.
  • Lift it upward and out.
  • You’ll now see the wiring harness cluster in front of the battery cavity.
 
Thanks so much for replying,

where did you find that information?


i want to find which screws/bolts the steps are talking about here?

3. Remove the battery tray / inner cover

This is the step most owners miss — the relay sits in front of this tray.
ElectricalRelays

  • Remove the screws holding the plastic inner tray.
  • Lift it upward and out.
  • You’ll now see the wiring harness cluster in front of the battery cavity.
I found it on Co-Pilot which is an AI platform. Inside the battery box should be a plate on the headstock side held on by some screws. You should be able to follow the large red positive cable from the battery to it since the positive cable is attached to one side of the relay. There is no negative lead to the relay because the starter case is the ground point. There are two small wires (minimum) that go to the relay low voltage side and two large cable wires attached to the other side which is the power to the starter. You have to remove the battery to see any of this stuff, so if you want to just explore, you'll need to reset your clocks etc. when you reinstall the battery.
 
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