Scottoiler Support Centre
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Dual Injector Troubleshooting / pre 2019

 Dual Injector Unit

Before installing a Dual Injector, it's a good idea to pull the Injector nibs from the rubber connectors and shorten them - at least by half in most cases. They are long to cover as many installations as possible but tailoring them to suit your bike is recommended.

 Cut off at straight end of nib

You can gently heat and shape the nibs with a heat gun or hair dryer.

Remember to "mushroom" the ends in the flame of a lighter for a second before letting them cool and pushing them back into the rubbers to make them a tight fit.

 nibs lightly touching sprocket face

This will make them shorter and more rigid and less likely to waggle over bumps and also allows you to place the tips of the nibs more accurately on the sprocket faces.

 not touching nuts 

Spin the rear wheel backwards and forwards to be sure they won’t foul on the teeth, sprocket windows or the sprocket retaining nuts spinning round.

horizontal install

Rather than have the tip of the Injectors way down at “6 o’clock”, keep the body as horizontal as possible, with the sprocket between the thin Injectors and place the tips on each face of the sprocket, at roughly “8 or 9 o’clock” (when viewed from the left of the bike – or between 3 and 4 o’clock on a right side chain drive bike).

unit in parts

Use the mounting block and space the body out from it, remembering to use the friction washers provided between each plastic surface to prevent it pivoting without having to tighten the nut too much - which could crack the body! Have the tips of both nibs lightly resting on each face of the sprocket, with the slash cuts on the outside to prevent them blocking with grit or friction from the sprocket.

 Cable tie the mounting block to the swing arm loosely first and once you happy that everything is lined up, pull them as tightly as you can.

 push in at least 10mm

Make sure there is around 10 - 15mm overlap between your clear delivery tubing and the black Dual Injector feed pipe before cutting them and pushing the feed pipe into the delivery tubing. You can use the excess to make spare nibs.

 

 

Q: There is no oil flowing from my Dual Injector

Q: There is oil leaking out of my Dual Injector

Q: The legs of my Dual Injector have snapped off

Q: The nibs have been ripped off my Dual Injector

 

Q: There is no oil flowing from my Dual Injector

  1.  Pull thin black Dual Injector feed pipe form clear delivery tubing, start your engine and turn the adjuster towards the prime setting.
    • If no oil flows, the problem lies with the RMV, please see the RMV troubleshooting guide.
    • If oil flows, the fault lies with the Dual Injector, so please continue to next point.
  2. Take off the dispenser nibs and check if oil flows now.
    • If oil flows, unblock nibs with a pin or trim if necessary, ensuring the slash cut at the end is facing away from the sprocket to avoid it getting blocked by grit or friction.
    • If oil doesn’t flow, then the legs are blocked, which can be cleared using a 1mm drill for about 20mm to clear any blockages. Test flow again.
    • Still no flow? Contact Scottoiler. DO NOT put compressed air through any Scottoiler components!

 

Q: There is oil leaking out of my Dual Injector

  1. Ensure that the Dual Injector is as near horizontal as possible. In spite of having open cell foam inside each leg to prevent this, if pointed downwards too steeply, air will be able to enter the higher (inner) Injector and allow oil to drain from the lower (outer) Injector when on the side stand.
    • If nibs are too long to have the Dual Injector horizontal, just trim them to the required size, making sure they slightly touch the sprocket, with the slash cut facing away from the sprocket to prevent any grit or friction from blocking them.
  2. If your Dual Injector is horizontal, but still leaking, check that there are no long air gaps in the tubing below the reservoir.
    • This can be caused by air entering around the spigot on the reservoir or small holes in the tubing. Make sure the tubing is pushed all the way onto the reservoir and has not gone hard with age.
  3.  If a Lube Tube is fitted, ensure it is no higher than the reservoir, as this can create a head of gravity, which can overwrite the closing spring in the RMV or the check valve in the eSystem.
  4.  Block off both Injectors and look for any signs of a leak around the body of the Dual Injector.
    • Should this be the case, contact Scottoiler.

 

Q: The legs of my Dual Injector have snapped off

  • Replace Dual Injector body and ensure tips of injectors aren’t snagged by the chain or sprocket teeth, windows or retaining nuts. Rotate the rear wheel back and forth to ensure that doesn’t happen.

 

Q: The nibs have been ripped off my Dual Injector

  • Replace Dual Injector nibs and ensure tips of injectors aren’t snagged by the chain or sprocket teeth, windows or retaining nuts. Rotate the rear wheel back and forth to ensure that doesn’t happen.

 

 

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