Welding Concern on the frame of a Motorcycle?

[simon y]

A couple weeks back I hit a "gremlin" in the road, I use the term gremlin as I didn't see what I hit and could not locate it after the fact. whatever it was it shredded the rear tire and scraped up the underneath of the bike. Just of the tire fixed, but the shop won't weld on the frame some an undisclosed reason (I asked they couldn't give me a good answer).

Anyway - I need to get a pin (spring attachment area) welded to the frame to hold the end of the spring that connects the jiffy stand (kickstand) to the frame. So the question is:

When welding on a bike is it better to use oxy acetylene or ARC (TIG/MIG) welding - I am curious because I have never welded on a motorcycle before and I am concerned that an ARC welder might mess up the electronics - I have a friend who can do both but I wondered has anyone ever done this - any suggestions will help -

Bike is a 2003 HD Sportster

[quasar]

eyup mate had brackets fitted to my motorcycle frame for a racing bar on a side car they used oxi & braised it on & the piece i ripped off had no problems for the 8 years i had the bike,

so i would recommend oxi,
arc could cause problems,