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| Twins Technical Talk Technical Talk for Hinckley Triumph Twins: Bonneville, T100, Speedmaster, America, Thruxton, and Scrambler. |
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09-05-2007, 05:16 PM
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#1 (permalink)
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Senior Member
Team Owner Favourite Bike: 2003 T100
Join Date: May 2005
Location: Hudson, Ohio - USA
Posts: 5,474 Other Motorcycle: 1991 BMW R100GS Extra Motorcycle: 2008 Guzzi 1200 Sport
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Are the small plugs on our header pipes for A/F sensors?
Our header pipes each have a removable threaded plug located about 10-12" from the exhaust port. These must have a purpose, presumably to insert a probe that tests for proper air/fuel mixture(??). If that is their purpose, does anyone know of a Lambda-type sensor small enough to thread into these ports? Or of an adaptor that would screw into the header, and permit a larger Lambda sensor to attach here?
Bob
__________________
03 T100 Lucifer Org and Silv: 122/42 jets, TORs, 18T, UNI filter, no AI, Polaris bellmouth, Metz 880 tires, Prog. 440 shocks (105/150 springs), 11-1124 fork springs, Thrux fork caps, gaiters, MotoTwin low bars, 6024 lamp, htd grips, 12v outlet.
Last edited by ohiorider; 09-05-2007 at 05:19 PM.
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09-05-2007, 06:38 PM
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#2 (permalink)
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Senior Member
Supersport 600 Favourite Bike: 2007 Thruxton 989
Join Date: Jul 2007
Location: Zimmerman, Minnesota
Posts: 180 Other Motorcycle: 2007 1250S Bandit
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They are for co monitors, and unfortunately, the lambda sensors have to be in the exhaust stream, so even if you rigged and adapter, it wouldn't work. You have to drill a large enough hole to weld on the lambda sensor bung. 
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09-05-2007, 06:49 PM
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#3 (permalink)
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Senior Member
Team Owner Favourite Bike: 2003 T100
Join Date: May 2005
Location: Hudson, Ohio - USA
Posts: 5,474 Other Motorcycle: 1991 BMW R100GS Extra Motorcycle: 2008 Guzzi 1200 Sport
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Thanks, Thrux - I was afraid of that. I looked at some Bosch Lambda sensors on the web where the threaded portion appeared to be the size/diameter of spark plug threads.
__________________
03 T100 Lucifer Org and Silv: 122/42 jets, TORs, 18T, UNI filter, no AI, Polaris bellmouth, Metz 880 tires, Prog. 440 shocks (105/150 springs), 11-1124 fork springs, Thrux fork caps, gaiters, MotoTwin low bars, 6024 lamp, htd grips, 12v outlet.
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09-05-2007, 07:37 PM
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#4 (permalink)
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Senior Member
Pole Position
Join Date: Jun 2005
Location: Stuart Fl
Posts: 3,753
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holes
My guess is that they are for future O2 sensors for emmission control, like autos have now. If Bonne goes EFI next year, Ill bet you see them used!
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CAPT D
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09-05-2007, 07:38 PM
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#5 (permalink)
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Senior Member
Formula Extreme
Join Date: Aug 2007
Location: San Diego, CA.
Posts: 492
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Exhaust cutouts! 
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09-05-2007, 09:18 PM
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#6 (permalink)
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Senior Member
Site Supporter
Legend Favourite Bike: 904cc Bonnie w/magwheels
Join Date: Mar 2006
Location: Austin, Texas
Posts: 11,815 Other Motorcycle: 2005 Yamaha FZ1
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it's for 2 tiny turbos!
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09-12-2007, 10:54 AM
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#7 (permalink)
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Senior Member
Team Owner Favourite Bike: 2003 T100
Join Date: May 2005
Location: Hudson, Ohio - USA
Posts: 5,474 Other Motorcycle: 1991 BMW R100GS Extra Motorcycle: 2008 Guzzi 1200 Sport
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Quote:
Originally Posted by sweatmachine
it's for 2 tiny turbos!
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.... with the boost measured in ounces per sq inch! You're gonna turbo that Bonnieblack, I feel it happening!
Bob
__________________
03 T100 Lucifer Org and Silv: 122/42 jets, TORs, 18T, UNI filter, no AI, Polaris bellmouth, Metz 880 tires, Prog. 440 shocks (105/150 springs), 11-1124 fork springs, Thrux fork caps, gaiters, MotoTwin low bars, 6024 lamp, htd grips, 12v outlet.
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09-12-2007, 10:56 AM
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#8 (permalink)
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Senior Member
Site Supporter
Legend Favourite Bike: 904cc Bonnie w/magwheels
Join Date: Mar 2006
Location: Austin, Texas
Posts: 11,815 Other Motorcycle: 2005 Yamaha FZ1
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Quote:
Originally Posted by ohiorider
.... with the boost measured in ounces per sq inch! You're gonna turbo that Bonnieblack, I feel it happening!
Bob
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I think you're right Bob. I just gotta round up a few thousand bones...
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