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K100-forum.com » Technical, repair and troubleshooting » Frame, fairing and wheels » Welding on a K bike

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1Back to top Go down   Welding on a K bike Empty Welding on a K bike Tue Aug 21, 2018 7:50 pm

MarcS

MarcS
Silver member
Silver member
I have installed a Spacerack/Gearsack rack to my K and need to tack the brackets to the rack while on the bike to get the exact position. Do I need to disconnect the battery or ECU so I don't fry anything? If I were a better fabricator i would be able to get the angles and measurements right with the frame on a bench but alas.............


__________________________________________________
K100rt ex plod bike 5/1990.



I have no problem with authority. Just some of the morons that are paid to enforce it.
    

2Back to top Go down   Welding on a K bike Empty Welding on a K bike Wed Aug 22, 2018 3:14 am

Tom G

Tom G
Life time member
Life time member
Hi Marc, yes, the battery should be disconnected. I would also unplug the FICU just to be sure. Some more learned friends may add to these comments. Cheers Tom Perhaps the ICU should also be unplugged.


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1986 K100RT Ex Police (Slightly modified)
2010 Suzuku DL650 V Strom
1992 R100R
    

3Back to top Go down   Welding on a K bike Empty Re: Welding on a K bike Wed Aug 22, 2018 3:21 am

Rick G

Rick G
admin
admin
Yep just what Tom said


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1999 K1100 LT with a Big Block 1200
    

4Back to top Go down   Welding on a K bike Empty Re: Welding on a K bike Wed Aug 22, 2018 6:43 am

Dai

Dai
Life time member
Life time member
My normal modus operandi when stick welding on any bike is that if it's electronic and it can be unplugged, unplug it. On the K that would be the ICU, FICU, battery and the alternator plug.


__________________________________________________
1983 K100 naked upgraded to K100LT spec after spending time as an RS and an RT
1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

5Back to top Go down   Welding on a K bike Empty Re: Welding on a K bike Wed Aug 22, 2018 9:05 am

Gaz

Gaz
Life time member
Life time member
Use the oxy set


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Gaz
1990 K75 6427509; 1987 R80G/S PD 6292136; 2010 G650GS ZW13381; 95 K1100LT 0232224
    

6Back to top Go down   Welding on a K bike Empty Re: Welding on a K bike Wed Aug 22, 2018 1:16 pm

Two Wheels Better

Two Wheels Better
Moderator
Moderator
A mate of mine welded the cracked centre stand on his K100RT whilst it was still attached to the machine. Good thing our local dealer friend had a used $300 ECU (they were $600 new back in those daze) as it was the first thing to go up in smoke. After spending the extra dosh he was off and running again. Lesson learnt.


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Patience is something you admire in the driver behind you and scorn in the one ahead.
~Mac McCleary
1977 R75/7-100, '93 K11/K12 Big Block, '95 R100 Mystic, '96 K1100RS, '98 K1200RS, '06 K1200R & '09 K1300GT. Projects: 1993 & '96 K1100RS, & 1st '98 K1200RS.
The Mystic, Big Block, 2nd K1200RS, K12R & K13 are running & ridable.
    

7Back to top Go down   Welding on a K bike Empty Re: Welding on a K bike Wed Aug 22, 2018 3:19 pm

Dai

Dai
Life time member
Life time member
Gaz wrote:Use the oxy set
Um. A stick welder will do less damage to the surrounding paintwork, but that would be the ideal solution.


__________________________________________________
1983 K100 naked upgraded to K100LT spec after spending time as an RS and an RT
1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

8Back to top Go down   Welding on a K bike Empty Re: Welding on a K bike Wed Aug 22, 2018 8:03 pm

MarcS

MarcS
Silver member
Silver member
Thanks guys. I unplugged everything and tacked it with the mig. Then removed the rack and welded it up properly.


__________________________________________________
K100rt ex plod bike 5/1990.



I have no problem with authority. Just some of the morons that are paid to enforce it.
    

9Back to top Go down   Welding on a K bike Empty Re: Welding on a K bike Wed Aug 29, 2018 6:08 pm

prince

prince
Silver member
Silver member
Agreed, when welding on anything with electric you always disconnect the battery(s).


__________________________________________________
Paul
1984 Honda V65 Magna
1985 BMW K100RT
2011 BMW K1600GTL (gone)
2018 BMW K1600GTL
    

10Back to top Go down   Welding on a K bike Empty Frame Welding Thu Aug 30, 2018 11:28 pm

redrockmania

redrockmania
Silver member
Silver member
Dai's advice is correct on disconnecting battery and electrical components - especially ECU and EFI computers. The other thing well worth doing is to adequately shield around the weld area so as not to cause damage to metal. paint, plastic, rubber and wiring. Weld spatter can cause damage to these items. Have a portable fire extinguisher on hand also - just in case.

    

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