Mig welding a kickstand while installed on the bike?

melensdad

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I had previously cut and welded my wife's kickstand to shorten it.

The weld on one side cracked when the bike got dropped while I was teaching our foreign exchange student to ride. It looks like I can fix the crack while the kickstand is still attached to the bike.

But I know there is a switch on the kickstand and am wondering if the welding can screw up the electrical system if I leave the stand on the bike? Mig welding runs electricity through the metal. Would disconnecting the bike's battery be enough? Or do I even need to do that? Or do I need to remove the kickstand from the bike?

I'll be using a Miller Passport welder.
 

670cc

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I approach repair or modification procedures by first asking myself what all could go wrong. You are doing that, which is good. But what would be so hard about just removing the sidestand? There is no question, given potential problems that could arise, that I would remove the stand before I welded on it.
 

melensdad

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I approach repair or modification procedures by first asking myself what all could go wrong. You are doing that, which is good. But what would be so hard about just removing the sidestand? There is no question, given potential problems that could arise, that I would remove the stand before I welded on it.
Obviously I'm lazy and trying to see if it is safe to do it the easy way.
 

Klap

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I'd highly recommend taking it off to weld it. Depending on how the welder is wired, it could cause some serious damage to the ECU, and other sensitive devices. Why take a chance?
 

DirtFlier

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Yup, I agree with all the don't-do-it comments. You're putting a lot of DC into the bike so why take a chance?
 

davidc83

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When Ewan and Charlie did the long way round series, they had to do some welding on some part....They (whoever did the welding) forgot to disconnect the battery and fried some electrical components and the bmw was toast...(it was the bike their producer/principle videographer was riding).....better be safe than sorry....if the crack isnt too bad, you can always use JB Weld for boats or take it off the bike to weld it back. Might as well teach the girl how to weld while you are at it.....hehehe
 
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