To drive the seal down I use a cut down plastic drain pipe as a slide hammer. Get a plastic drain pipe at least maybe three times the width of a hand, ideally more. Gaffa tape is like "the force" - it has a light side, a dark side, and it holds the universe together. Laser Fork Oil Level Setting Tool Setting the fluid level in front forks accurately is critical to the safe handling of your bike and this tool makes it a piece of cake. Take off the top cap - Remove inner damping rod – It will slide out as you tip the fork oil out – And remove fork spring. Loosen top yoke pinch bolts – Keeping the lower yoke bolts done up – This allows you to easily undo the top cap on the forks.

On UD forks the fork stanchion itself has the aluminium wheel thingy (technical term) at the bottom ... so you cannot just slip over a full seal or pipe.

Fork Seal Driver 49-50mm

Take fork upper and coat the seal mating face with seal grease (not normal grease). This is important as it will prevent the seal degrading and also the aluminium of the fork upper corroding. Not all upper and lower fork slider tubes are the same diameter, so this is going to take some patience on your part when in your local hardware store. If you can’t find something off the shelf like I did with the PVC coupler above, there is an alternative. It will feel as if it is catching on something and is unnerving at first – But this is simply the internal bushes/washer hitting the fork seal.

First, buy a section of thin walled pipe that is slightly larger than the diameter your need. Next, cut it in half/down the middle (top to bottom in the picture above) – the result should be two C shaped sections. Finally, clam shell them around your upper fork slider and secure them in place with a hose clamp. The hose clamp should be on the end of the fork seal driver furthest from the seal being driven – this will keep it out of the way as you are driving the seal into place. At this point it is important to note / write down how each part fits together – As you will be cleaning them all later on. Clean forks thoroughly before taking forks apart – This makes it easier to stop mud and grit getting into the fork internals when they are apart.

\n\t\t\tMotorcycle Fork Seal Driver 35-45mm

Although I did this on a set of Kayaba UD Forks from a Yamaha WR400 ... I figure the basic principles will work on any fork. Our experience is that the syringes with this product don't last forever with the interaction with suspension fluid and we would advise you to clean it out thoroughly after use. The syringe can be exchanged for a vacuum brake bleeding tool. The syringes on the professional version last much longer, so if you are stripping a lot of forks it is a better buy. As it’s not smaller on the outside and inside, it will easily fall out when the new one is in place. I have made a small video showing the 'hard bit' ... driving the new fork seal into place ... which shows how easy it is using home made tools.