Welding Y pipe
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Cruiser
Joined: Aug 2015
Posts: 170
Likes: 3
From: sycamore
Welding Y pipe
Going to do exhaust header mod tomorrow, where you cut the pipe and plug it with freeze plugs. I want to do this without removing the pipe from the bike if possible. I then want to tack weld the plugs in place. My question is: could welding with it on the bike screw up any of the electronics? Any precautions I should use? Oh and what about the O2 sensor?
I would be very hesitant to weld on a bike with the ECM NOT UNPLUGGED .
Grand HDF Member
Joined: Nov 2013
Posts: 3,807
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From: SW Washington State
We weld computerized heavy equipment all the time without problems. most of this equipment has caution stickers warning to disconnect the battery before welding to prevent damage to the electronics.
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Cruiser
Joined: Aug 2015
Posts: 170
Likes: 3
From: sycamore
It's a 2008 ULTRA. I will disconnect both the battery and the ECM. If this does'nt produce the intended results (less heat on right side, more sound out of left side) or I start getting trouble codes. Then I will go with Fulsac. Thanks for the replies. I will do a follow up and let you know how it turns out. Oh ya l'm running SE STREET CANNONS/ turndown end caps.
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Extreme HDF Member
Joined: Sep 2010
Posts: 14,744
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From: Phoenix '53, '88, '09 Big Twins
take the time to remove the pipe from the bike- the danger to the electronics is real, this is just good practice.
( watch "Long Way 'Round" where they weld a bmw frame in mongolia and kill the bike)
this will also allow the pipe to be turned or positioned so that the best penetration is achieved
Mike
( watch "Long Way 'Round" where they weld a bmw frame in mongolia and kill the bike)
this will also allow the pipe to be turned or positioned so that the best penetration is achieved
Mike
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From: Straight Jacket Memories and Sedative Highs
I don't think they remove exhaust from cars. Not sure precautions. I brought my bike to an exhaust shop. I aksed about disconnect battery they didn't say too. LIke I said it is an 01 carbed though.
