Introduction to installing your new LED indicator boardsThanks for purchasing a pair of our new LED indicator boards for Triumph Bonneville, Bonneville SE, T100, Thruxton and Scrambler models. These step-by-step instructions will guide you through the installation process and electrical connections for your bike.
Installation is very straightforward as the LED board fits in place of the original bulb and reflector unit using the original screws and mounting holes. There is no cutting, drilling, soldering or other modification of the indicator units required. The electrical connections are also fully plug-and-play using the original terminals from the standard filament bulb holder.
Please have a good read through all of these instructions before you start. Installation time is normally less than 5 minutes per side – in fact it will probably take you longer to read these instructions than to complete the installation itself!
Installation guide contents (click to jump to a particular section):
The tools you will need
The only tool that you need to install the LED indicator boards is a small screwdriver with which to remove the two screws which hold the orange plastic lenses on, that’s it! There is no cutting, drilling or rewiring involved; the new LED board fixes and connects using the same screws and terminals as the original filament bulb.
A small pair of pliers might be useful for removing the wire terminals from the old bulb holder if they are a little tight, but these are not essential in most cases.
What’s included in the kitEach LED indicator conversion kit contains a pair (i.e. two) LED indicator boards for the left and right sides (both are identical so can be fitted either way round).
The indicator boards may be fitted to either the rear or front of your motorbike, or if you would like to convert both front and rear then you’ll need two kits (or else or the complete set of four package).
The LED boards are installed using the two standard screws which hold the original filament bulb holder and reflector unit in place. No additional mountings or fixings are therefore required. Note that the actual indicator stalk and lens unit shown in the photos is obviously not provided, only the LED boards themselves.
Before you start…
Installation shouldn’t take long, but it’s worth having the bike positioned so that you can comfortably access the indicators, somewhere dry and with decent light to work by. A quick clean of the indicators is worthwhile before you start to avoid getting dirt and grime over your shiny new LED light board.
As with any electrical work, it is worth disconnecting the battery (or at least removing the appropriate fuse and ensuring the power and lights are all switched off) to avoid making any accidental short circuits. At the very least make sure that the ignition and indicator switches are turned off.Have a close look at your new LED boards, and in particular the two mounting holes on either side. You will see that one hold is larger than the other; this is very important when you come to install the LED board into the indicator units. Looking at the rear of the LED boards with the spade connectors at the bottom as per the photo on the right, the hole on the right is bigger than the one on the left.
All LED indicator boards are identical – there is no left and right so it doesn’t matter which way round you fit them.
Step 1 – Unscrewing the lensStart by unscrewing the two screws which hold the orange plastic indicator lens to the main indicator unit body.
You will notice that the two screws are quite different. The inside screw (the one nearest to the numberplate) is a little longer and has a standard thread for screwing into metal. This screw passes through the orange lens and interior reflector and screws into the metal bar which runs through the length of the indicator arm.The outside screw (the one further from the numberplate) is a little shorter and has a coarse self-tapping thread. This screw passes through the orange plastic lens and taps itself into the soft plastic of the silver-coloured reflector and bulb holder.
It is very important that you don’t get these two screws mixed up, so take careful note which way round they go. The longer screw with the finer thread goes nearest to the numberplate.
Step 2 – Removing the orange lensOnce the two screws have been removed, the orange plastic indicator lens will come away giving access to the bulb inside.
Take note of the orange lens as this must be refitted the correct way round. Looking on the outside you will notice various text running around the edge, most importantly where it says “TOP”.Looking on the inner side of the lens, you will find two small protrusions which locate in the reflector (and in the LED board when it is fitted) and also a small notch cut into the bottom edge. This notch allows any water that gets in to the light unit (e.g. when washing the bike or in heavy rain) to drain away, so it is essential that it is at the bottom.
If the inside of the lens is dusty or dirty, give it a quick wash in soapy water, then dry thoroughly. An old tooth brush is useful for getting into all the ridges inside where dust can accumulate. The cleaner the lens, the brighter the light will be.
Step 3 – Removing the reflectorWith the screws and orange lens removed you can now access the bulb and plastic reflector / bulb holder. There is no need to remove the bulb from the holder. Instead, by gently grasping the bulb you should find that the reflector is fairly lose and can be removed from the indicator lamp housing. It is tucked under a tab on the outside (furthest from the numberplate) so you can either rotate it until the corresponding cut-out lines up, or else lift the inner side of the reflector first and slide it out sideways.
Once the reflector is removed, the two wire connections are visible. These are connected to the bulb holder using standard spade terminals and can be slid off. One wire should be white and the other black, but this may vary between years and models.
If the terminals appear tight, try gently wiggling from side to side as you pull to ease them off. Pull the connector and not the wire to avoid damaging the wiring.
The bulb holder and reflector unit are not needed for the LED conversion as the LED board has a special mirror finish of its own. The reflectors should therefore be safely stored in case you ever wanted to change back to the original filament bulb setup.
Step 4 – Installing the LED light boardThe most important part of the installation to get right is to make sure that the two mounting holes in the LED board are the correct way round (remember one is larger than the other).
The larger hole goes on the side nearest to the numberplate so that the metal screw can pass straight through it. The smaller holes goes on the outside (furthest from the number plate) so that the self-tapping screw can screw into it.There are two protruding spade connectors on the rear of each LED indicator board. When fitting the right indicator (as you look at them), these spade terminals will be at the bottom. For the left indicator, the board is rotated through 180 degrees so that the spade terminals are at the top. In this way, the smaller holes in both LED boards are furthest from the number plate. The two spade terminals which you removed from the old filament bulb holder should push straight onto the terminals on the rear of the LED boards. They should be a snug fit; if they appear a little loose after removal from the old bulb holder then they can be gently squeezed to tighten them with a pair of pliers.
The LED light boards have integrated circuitry to ensure that the connections are made in the right polarity. The LED boards are therefore not polarity sensitive and so the two wires can therefore be connected either way round. You will find that one wire is probably a little longer than the other, so fit this to the furthest connector, or whichever way seems easiest.
To fit the LED board, you will need to hook it under the tab on the outer edge of the indicator housing before gently pushing it into place. Check that the mounting holes in the LED board are in a horizontal position and gently rotate into place if not.
Step 5 – Reinstalling the orange lensTake the orange plastic lens and checking that you have it the right way up (“TOP” at the top and the drainage notch at the bottom) engage the two protrusions with the cut-outs in the LED board. Insert the inner (standard thread) screw first and tighten this up checking that both the LED board and lens sit flat against the main body of the indicator lens. Don’t tighten too much yet as this may pull the lens to one side making it harder to align the second screw.
Then insert the outer (self-tapping screw) and screw it into the LED board using gentle pressure. You need to press hard enough for the self-tapping screw thread to ‘bite’ into the circuit board and start to cut a thread, but not too hard. Once the thread has started it should screw in easily and can be tightened up, before fully tightening the other screw too.
Once both screws have been tightened, that’s it, the first LED indicator board is installed! Now just repeat the process on the other side and then test them out.
Changing the flasher unit
The standard flasher units fitted by Triumph at the factory are designed for use with only filament type bulbs. They require a certain power load in order to work correctly. LED light boards have a significantly lower power consumption than the standard filament bulbs as they are much more efficient. Therefore you might find that the indicators do not flash correctly when you fit LED lights (any LED lights that is, this is not unique to the MatchlessClueless LED boards!). The indicators may flash too slowly, too quickly or not at all.
Usually, replacing only one indicator bulb on each side with an LED upgrade will not stop the standard flasher working as the remaining filament bulb still draws enough power for the flasher to operate. However some flashers have a blown bulb function which changes the flash rate when one of the indicator bulbs blows. LED lights draw so little power that such flasher relays may be fooled into thinking that a bulb has blown, and therefore they change the flashing rate to alert the rider.
In either case, the easy solution is to replace the standard flasher relay unit with a modern electronic unit suitable for LED lights (they will work with any combination of LEDs and filament bulbs). These are cheap and readily available (just check you get the right fitting) and installation is as simple as unplugging the old one and plugging in the new one.
We can supply a suitable LED compatible flasher relay for most modern Triumph models in our LED store here.
Conclusions and your comments
So that’s the installation complete and your new LED indicators ready to give you many years of bright service. If you have any problems them please do not hesitate to get in touch via email or using the contact page. Please make sure your email address is correct so I can get back to you.
I would also be glad to hear how you found the installation process, any problems you encountered or anything that wasn’t clear or missing from this installation guide. Please let me know how I can improve the guide by leaving me a reply via the comment form below. Also if you have any photos you’ve taken of your bike during or after the installation process, then please email them to me so that I can add them to the customer’s photo gallery.