Welding Swingarm - Honda RC51 Forum : RC51 Motorcycle Forums
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post #1 of 17 (permalink) Old 12-06-2012, 07:49 PM Thread Starter
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Question Welding Swingarm

The orginal owner of my `02 RC 51 decided to file clearance on the aluminum swingarm to clear the Jardine muffler on the right side. I have an experienced welder that will build-up the area in question. Anyone with suggestions,or do's and don'ts before I have the repair made?
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post #2 of 17 (permalink) Old 12-06-2012, 09:28 PM
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Safety, always safety... Buy another swingarm.. and switch the swingarms....IMHP
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post #3 of 17 (permalink) Old 12-06-2012, 09:41 PM
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Pictures......it would be helpful if you posted a picture. It depends exactly where you are planning to weld. I personally would have no issues welding just about any part of the swing arm. These things are built like brick shit houses and they won't just snap....if anything, aluminium cracks gradually and you would see this if you inspect the welded area before riding and catch this before any catastrophic happens. I inspect my bike all of the time, so nothing special to me.



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post #4 of 17 (permalink) Old 12-07-2012, 09:47 AM
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Originally Posted by madbuyer View Post
Pictures......it would be helpful if you posted a picture. It depends exactly where you are planning to weld. I personally would have no issues welding just about any part of the swing arm. These things are built like brick shit houses and they won't just snap....if anything, aluminium cracks gradually and you would see this if you inspect the welded area before riding and catch this before any catastrophic happens. I inspect my bike all of the time, so nothing special to me.

I agree with allchaos welding and finishing will cost the same.
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post #5 of 17 (permalink) Old 12-07-2012, 02:41 PM
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He probably didn't file down the swingarm, the exhaust probably wore a hole in it on its own. Think about that before you slap another swingarm on there and have a hole worn in that one too.




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post #6 of 17 (permalink) Old 12-08-2012, 03:33 PM Thread Starter
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Photo of area to be Welded

Here is a photo of the clearance the previous owner made to the swingarm. I feel a certified welder can repair.

Last edited by cyclrsailor955; 05-03-2013 at 12:29 PM.
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post #7 of 17 (permalink) Old 12-10-2012, 09:29 AM
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The muffler should clear the arm without that mark, make sure the midpipe or muffler bracket/passenger peg isn't bent before swapping swingarms.
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post #8 of 17 (permalink) Old 12-11-2012, 09:02 AM
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How much is a welder going to charge you? I've seen recoated swingarms a being sold here for around $250? You can probably still sell that one for around $100 to somebody with an sp1 or super hawk.

Regardless, I would be willing to bet money, the guy didn't file that down. The exhaust rubbing on it caused that, and will again on whatever you replace or repair it with. Make sure you fix the cause of your gouged swingarm before you fix your swingarm.




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post #9 of 17 (permalink) Old 12-11-2012, 09:21 AM
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My local used parts guy lists swing arms for $75 to $250 ... usually the single sided Ducati and VFR arms are the only ones that cost more than $150.
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post #10 of 17 (permalink) Old 12-27-2012, 07:10 PM
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as the other fellas said take care of the rubbing issue first. when you do get it welded, make sure the guy keeps the part as cool as possible and doesnt just pile on a huge crazy hot bead all at once. those swingarms are solid, however after-factory welding will still cause stress areas from the quick heating and cooling, the more heat/ more time an area is exposed, the farther the residual stress will go. id say depending on how deep the wear is, you might be better off not touching it.
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