Written by Jim Cogill. Posted in gear

A popular TV quiz show "Danger" provides participants with answers and scores players based on how well they answer unusual questions. Suppose you are a contestant and answer "a sensor used to measure the airspeed of an airplane".

If you answer "pitot tube" first, you win! The Pitot tube is named after its inventor, and uses an open tube pointing to the oncoming fluid (or air) to detect the pressure difference corresponding to the fluid flow rate. And, interestingly, the Motobriiz automatic chain oiler uses a similar concept: the pressure generated by the wind from the front open pipe of the motorcycle forces the lubricating oil from the tank to refuel the chain through the pipe. When the motorcycle is running, the chain oil will flow due to the pressure generated by the wind. When stopped, there is no wind pressure, so no chain oil flows.

The oil flow of the chain remains directly proportional to the speed of the motorcycle; at higher speeds, higher wind speeds and pressures, more oil will flow.

The components of the Motobriiz automatic motorcycle chain oiler include a clear plastic input tube mounted on the front of the bicycle; an optional moisture trap; a container for storing lubricant; and an output tube connected to the industrial-grade F-1 felt applicator , The applicator is connected to the chain slider with epoxy resin. Two parts of polyurethane adhesive and alcohol swabs (used to clean the oil on the chain slider) are provided for applicator installation.

The center ridge of the rubber chain slider must be the same length as the applicator in order to align the porous surface of the applicator with the chain slider.

Image source: Motobriiz.com In operation, the chain moves on the top of the foam applicator, and the centrifugal force generated by the chain movement sucks lubricant and distributes the oil chain between the external chain components (rollers, side plates, etc.) and the sprocket teeth Round around.

Although modern O-ring and X-ring chains are internally lubricated at the factory, the external roller surface and sprocket are not like that. Motobriiz automatic motorcycle chain lubricator lubricates these surfaces to extend the life of the chain and sprockets. The manufacturer recommends almost all engine oil (no special chain lubricant is required) for the fuel tank.

The Motobriiz chain lubricator kit includes a water trap. According to the supplier, the optional water trap is just that, optional and only useful when planning to ride in heavy rain or snow. A hard plastic transparent cylinder with a diameter of one inch and a length of five inches replaced a section of the input air pipe. The excess water will condense in the pipe for later use, thereby preventing the reservoir water from being contaminated.

The installation of the Motobriiz fueler is straightforward, simple and fast. The input air pipe is fixed at the front of the bicycle with the open end forward. The tube passes under the seat to the reservoir position, then cuts to a certain length and pushes onto the barbed reservoir fitting. The reservoir output tube is fixed on the barb fitting (connected to the chain slider) on the reservoir and applicator, completing the pipeline.

Common sense indicates that the oil pipe has no sharp bends, the oil pipe will not come into contact with high-temperature engine parts, and will not interfere with the operation of the motorcycle due to contact with the fueler parts.

The direction of the fuel tank is not important, except when the motorcycle is parked, the fuel drain should appear above the fuel level of the fuel tank. An oil absorbing pad is provided for installation under the reservoir to absorb spills or leaks.

What is the performance of the fuel dispenser? Installed as instructed, the device kept my chain slightly lubricated for hundreds of miles of cycling, from slow, stop-and-go "parking lot" steps to long interstate highways.

When parking overnight, there was no oil dripping on the sidewalk. From the actual riding experience, the device works as advertised. The initial evaluation model tested was the "standard" model, with a fixed orifice oil flow, which was sufficient for most applications. The available variable flow model allows fine adjustment of the oil flow.

For riders who own more than one motorcycle, a kit with access hoses and applicator can be used, allowing a single reservoir to be exchanged between bikes. When the reservoir is exchanged between multiple bicycles, the quick disconnect coupling can easily replace the hose.

For those who like external chain and sprocket lubrication, this is a "one-and-for-all" chain lubricator.

Suggested retail price: $69 (fixed flow model) | $79 (adjustable flow model) | $29 (second bike kit)

What is the value of convenience to you in the ten years of working with Scottoiler? More than ten years ago, when I was preparing for a six-month road trip in the north, I thought about this question...

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