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Ande shows one of the techniques we use to evaluate a carburetor. There are a few common problem areas for /3 and /2 carbs. One the the issues common to these carburetors is when air leaks past an air screw and leads to a overly lean running condition. The air screw should full seat and seal the idle air circuit, but if it does not it can make tuning difficult. If you enjoyed this video please ...

In this video Ande walks through the individual components that make up a rocker assembly for an R69S, how to evaluate them, and reassemble. Please feel free to COMMENT below! SUBSCRIBE to our channel and LIKE us on Facebook and Instagram!

Ande gives a quick explanation of the shimming process we use at Barrington Motor Works to set proper preload on the tapered roller bearings used in /2 wheels. The bearing pack removed from the rear wheel of an R69S had been shimmed improperly allowing for a great deal of bearing movement. The large amount of movement can cause damage to the wheel hub and make a wheel feel wobbly going down the...

Ande just rebuilt the rocker arm assembly on an R51/3 and after installing the cylinder head allowed the motor to sit over night. The initial steps we take to make our first valve adjustment settings start with head torque. Each of the four head bolts is torqued sequentially and in three stages with increasing torque levels. Next we adjust any rocker arm end float (up and down motion present in...

This video shows how Ande at Barrington Motor Works sets up the magneto ignition system for a /3 or /2 motor. The ignition system operates when two magnets generate a current by means of rotating on the end of the cam shaft. The magneto system is timed to energize the coil and produce a spark at a particular time. Setting up your magneto ignition components correctly will ensure the motor fires...

Occasionally a customer will send a BMW four speed transmission to Barrington Motor Works that will not shift. The foot shifter will move up and down but there is no movement of the shift forks. After disassembly we have found the pin that holds the dual shifting segment together and allows the two parts to function together has dislodged. Our preventative repair to this issue, and part of all ...

Ande talks about the easily spotted differences between some of the BMW /2 models. He touches on how to quickly spot and identify which model you could be looking at. Valve covers, cylinders, frames and carbs are just some of the simple identifiers that will be in your tool box after watching. Please feel free to to add to the discussion by commenting on the video! SUBSCRIBE to our channel for ...

Ande is happily showing a quick look at the 1961 BMW R50S we recently fully rebuilt. This bike is a real treat to blast down the road on. The hot cam and lightened flywheel get this baby purring so well it makes the rider wonder how far they should be willing to push it! The smile factor is set to 11! You can read the full description of the work performed to bring this puppy back to life on ou...

Ande from Barrington Motor Works explains his process for starting the recently rebuilt 1961 BMW R50S. Much of the process is the same for any vintage BMW motorcycle with a kick start system. The /3 and /2 era BMW motorcycle ignition system uses a magneto to produce the electrical field needed to generate a spark. When the engine is kicked over the crank is rotating at a very slow rate and ther...

A quick video by Ande at Barrington Motor Works of how he puts motorcycles up onto their center stand. Here he is using a recently rebuilt 1961 R50S as the model for his demonstration. Subscribe to see some of our other videos!

Once the shift forks are dislocated from the transmission housing the input, intermediate and output shafts can then be removed. With a little heat for persuasion (and maybe a lite rubber mallet tap) all the shafts fall out. Barrington Motor Works

1954 R51/3 Engine

Pepper the 1969 R69S test ride.

R50S start up