Old Motorcycle Frame Squareness Check/Test Part 2

Part 2 of 2. Big Daddy of BEOSC gives instruction on checking a motorcycle frame for geometric alignment to determine whether or not the frame is "usable". Covers major points of identifying damage and gives an overview of techniques used to check vital mount components for quality.

Category:

Howto & Style

Tags:

• Motorcycle
• Frame
• Rigid
• Neck
• Axle
• Plates
• Motor
• Transmission
• Mounts
• How-to
• Quality
• Check
• Test
• Geometry
• Alignment

[FreestyleBrain]

So, I was waiting for the part big daddy is showing use how to straighten that frame up again.

Could you give us some advice about that?

[BEOSChops]

@FreestyleBrain

As I stated in the video, I would just shim the drivetrain surfaces and sand/file the axle plates to bring everything into parallel. Beyond that, it would probably be more trouble than it is worth to not just start with a better frame. Honestly, this old frame is really not that much farther out than a lot of fresh, economy aftermarket frames are coming right out of the packaging. I go into every fresh build assuming I going to have to shim something in the drivetrain --BD

[poshi12]

If your not using belt drives,Its still important to get it super level?

[BEOSChops]

@poshi12

Chains, in general, will tolerate more mis-alignment than belts. However, to prevent pre-mature wear on chains drivetrain alignment is important.

[dracos78]

would you want to file on the lower left for the axle or the upper right to bring it back into level ? just wondering because of the weight riding on the upper part of the axle plates ? You guys do great work for sure - thanks for the informative info ..

[BEOSChops]

If necessary due to the filing or grinding creating a gap, A guy could always put a small/thin shim between the axle plate and the axle to hold it exactly where you want it until you get everything tightened down - axle nut to plate to spacers - at which point (done properly) everything should hold. --Al 1-515-265-8441

[svengalie]

nice channel

[schellmax]

THANX FOR MAKING THIS VIDOE!!!!!

[hendersonjerry]

The question is if you took an undamaged panhead frame and checked five points for level and neck at 90 how close would they be?

This looks like an aftermarket frame.

Posts the results for an OEM frame if you know them.

[zx12ryder]

good information i really appreciate this vid. Now if i get my extra frame modified as a bobber i know what to look for.

[poshi12]

@BEOSChops

Dig. Thanks! Keep up the amazin work!

[cursedparty]

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