How to Build a Motorcycle Jig

How to Build a Motorcycle Jig?

If you wish to build a motorcycle frame, then the first thing that you need to do is to construct a motorcycle jig. It is the most effective way to keep all the parts of the motorcycle frame in one place while fabricating it. Customized motorcycle jigs are available in a wide variety of shapes and size, but they usually bear an exorbitant price tag. The good thing is that a motorcycle can also be build at home. Here is a step-by-step procedure to build a motorcycle jig.

The dimensions of your motorcycle jig should be as accurate as possible because then only it will be able to accommodate your motorcycle frame properly. There are a lot of construction plans and templates available over the internet. Some of the plans have been especially created for the kind of motorcycle frame you wish to build. Thus, the first thing that you are required to do is to choose a construction plan according to your needs and budget.

The foundation of the motorcycle jig is made of two pieces of steel mill channel that are 5-inches in diameter. For the neck of the jig, 1/8-inch thick wall tubing is used that is made of steel, and measures 2-inches by 3-inches. By clamping two plates to the vertical 5-inch steel post, you can adjust the height of the neck vertically. On the pivot, a rod of 3/4-inch diameter should be used that is able to follow through the neck of the steel frame.

For the axle post of the motorcycle jig, you would need steel tubing that is 1/4-inch in diameter and measures 2-inches by 4-inches. The axle plates are held in place by the means two axles that 3/4-inch in diameter. Shaft collars and spacers can also be used to provide support to the axle plates. Take 1/2-inch square tube and over it weld 1/2-inch steel plate. Place this structure over the axle posts. Under this structure, you can also add spacers. This newly-built structure will help you to move the axle plate vertically for both leveling and minor adjustments. One thing that you should keep in mind while building axle posts is that the posts should be able to move in any direction, up, down, forward and backward.

For the engine fixture, you need two lower rails that are kept apart by the means of 1 ¼-inch spacers. Take 1-inch by 4-inches steel bar to serve as the engine bar. Assemble all these components together and pass a threaded rod through the channels. To keep the bolt firmly positioned, use a single piece of angle and nut. In the four corners of the engine plate make setscrews, and then attach the plate to the fixture with the help of setscrew jacks. With this your motorcycle jig is ready for use.