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| Twins Technical Talk Technical Talk for Hinckley Triumph Twins: Bonneville, T100, Speedmaster, America, Thruxton, and Scrambler. |
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12-17-2007, 10:53 PM
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#1 (permalink)
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Senior Member
Formula Extreme
Join Date: Feb 2007
Location: Australia
Posts: 789 Other Motorcycle: Triumph Hurricane Extra Motorcycle: several bsa,s
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Bad engineering practice
just reading the snorkel removal thread ,and it is in my opinion not only bad practice, but completely unecessary to have a great oval hole open to the elements in your airbox. imagine if that was your car running that set up bad idea ,what i did was modify the snorkel to flow more air and protect my airbox from water intruision,and it does happen no mater what you read here,I road tested the bike and its probably my imagination havent done enough miles yet, but the mid range feels stronger and its staying in ! comments .
stock snorkel
modified snorkel
__________________
Regards Ron
Hurricane pictured(Harry)
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12-17-2007, 11:01 PM
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#2 (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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I say ditch the whole affair for individual air filters. Why waste time with the airbox and snorkel when it has been proven that the individual filters make more power with no downside?
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12-17-2007, 11:35 PM
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#3 (permalink)
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Senior Member
Formula Extreme
Join Date: Feb 2007
Location: Australia
Posts: 789 Other Motorcycle: Triumph Hurricane Extra Motorcycle: several bsa,s
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your correct, but iam happy with the bike at the moment, but iam never happy for to long when it comes to playing with bikes, so dont tempt me iam weak and i might do it..as a matter of fact i like the way i think rev has his set up, it looks well engineered hmmm.
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Regards Ron
Hurricane pictured(Harry)
Last edited by RonD; 12-17-2007 at 11:39 PM.
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12-17-2007, 11:37 PM
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#4 (permalink)
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Senior Member
Grand Prix 500 Favourite Bike: 01 Bonneville
Join Date: Jul 2007
Location: Bay St Louis, MS
Posts: 112
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Ron,
Thanks for the insight and photos. Let us know how the road testing goes.
Mike
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12-17-2007, 11:44 PM
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#5 (permalink)
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Senior Member
Formula Extreme
Join Date: Feb 2007
Location: Australia
Posts: 789 Other Motorcycle: Triumph Hurricane Extra Motorcycle: several bsa,s
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ok mike will do .
__________________
Regards Ron
Hurricane pictured(Harry)
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12-18-2007, 12:07 AM
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#6 (permalink)
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Senior Member
Formula Extreme Favourite Bike: 69 Tiger TR6R
Join Date: Jul 2006
Location: Pottstown, PA
Posts: 914 Other Motorcycle: 2003 Bonneville
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I did the snorkel trim thing at first too. Bike went from lean to super lean and felt like she only wanted to rev to the moon, nothing at the bottom or mid whatsoever. Tried to rejet, broke my carbs, got a new set, rejetted and did the KARK.
__________________
2003 790 Bonne (black, not Black) / 1969 Tiger TR6R (oh so sweet)
Addicted to Triumphs for over 40 years.
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12-18-2007, 12:26 AM
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#7 (permalink)
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Senior Member
SuperStock Favourite Bike: Triumph Thruxton
Join Date: Nov 2007
Location: Lemoore Kalifornia
Posts: 247 Other Motorcycle: Kawasaki ZRX1200R
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Pabonne,
Broke your carbs? What happend? I just received my Polaris bellmouth but I am waiting to install it till after I get my pipes and re-jet. Did your re-jetting go bad? What should I avoid?
__________________
vanson1200r:2007 Thruxton Red with white stripe. AI, Emgo's, 125's, Shim's, Polaris Bellmouth, K&N.
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12-18-2007, 12:53 AM
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#8 (permalink)
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Senior Member
Formula Extreme
Join Date: Feb 2007
Location: Australia
Posts: 789 Other Motorcycle: Triumph Hurricane Extra Motorcycle: several bsa,s
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Quote:
Originally Posted by pabonne
I did the snorkel trim thing at first too. Bike went from lean to super lean and felt like she only wanted to rev to the moon, nothing at the bottom or mid whatsoever. Tried to rejet, broke my carbs, got a new set, rejetted and did the KARK. 
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yeah my bike is not running lean so iam in a different position to start with, and i cant see how putting the snorkel back on is going to make it leaner, i would think richer,but if it did run lean and it should not ,that would mean iam flowing more air ,and an increase in jets size would put it right but thanks for your comments its interesting..
__________________
Regards Ron
Hurricane pictured(Harry)
Last edited by RonD; 12-18-2007 at 01:02 AM.
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12-18-2007, 12:56 AM
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#9 (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 pabonne
I did the snorkel trim thing at first too. Bike went from lean to super lean and felt like she only wanted to rev to the moon, nothing at the bottom or mid whatsoever. Tried to rejet, broke my carbs, got a new set, rejetted and did the KARK. 
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I am sorry you broke your carbs. However, what I find interesting is that your bike went from lean to super lean ...... that would tell me that it was pulling in more air (maybe?).
Wonder what would have happened if you would have followed that path, and simply installed larger jets to compensate for more air?
I'm no tune up expert...just asking a question.
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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12-18-2007, 07:59 AM
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#10 (permalink)
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Senior Member
Formula Extreme Favourite Bike: 69 Tiger TR6R
Join Date: Jul 2006
Location: Pottstown, PA
Posts: 914 Other Motorcycle: 2003 Bonneville
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Quote:
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Broke your carbs? What happend?
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Unrelated to the snorkel, just provided impetus to remove the airbox since I had the carbs out already. I broke the carb casting trying to remove the anti-tamper plugs covering the idle mixture screws. DOH!
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yeah my bike is not running lean so iam in a different position to start with, and i cant see how putting the snorkel back on is going to make it leaner, i would think richer,but if it did run lean and it should not ,that would mean iam flowing more air ,and an increase in jets size would put it right but thanks for your comments its interesting..
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Maybe I confused things here... I went from lean with the "in-tact" snorkel in place, to even leaner with the trimmed snorkel in place. I never tried it with the snorkel completely removed because I felt like I was just making things worse instead of better.
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Wonder what would have happened if you would have followed that path, and simply installed larger jets to compensate for more air?
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Probably would have been fine. But I got the carbs from SCCTrim and he through a couple of K&N cones in on the deal. So I re jetted to that set up and the rest is history.
__________________
2003 790 Bonne (black, not Black) / 1969 Tiger TR6R (oh so sweet)
Addicted to Triumphs for over 40 years.
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