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Old 05-05-2008   #1 (permalink)
Senior Member
250 Grand Prix
Favorite Bike: 2007 Thruxton
 
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Join Date: Jan 2008
Location: Denver, Colorado
Posts: 135
rejetted, predators, airbox and air intake removed this weekend...

and the difference is like night and day. seriously. and the sound of the exhaust finally does this bike justice and no longer sounds like a suped-up vacuum cleaner! it's angry! asked the local triumph dealer (who also have three guys there who race thruxtons) and they recommended a 42 pilot and 130 for the mains. this seems to surprise most people including myself, but it seems to be working. in their race bikes they have 132.5's, but thats with a hotter cam. all i know is the bike is alive now and will be put on a dyno either tomorrow or wednesday to see what it's doing and to fine tune it. the bike is just way more responsive when you twist the throttle and now wants to go fast with no hesitation.

the other thing i'd like to mention is if you're hesitant to do this work on your own i have to say it was fairly easy to do. not complicated at all. i was lucky enough to have a fellow thruxton rider who lived near me offer to help and it went really fast and had no problems at all.

thanks, john for being super cool and offereing to help out with the mods! i really appreciate it, and like i mentioned before if you ever need any help with anything let me know! now we need to get out and ride sometime soon!

scott
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'07 Thruxton, blue/checker, air box & AI removed, BC predators, Icon shocks, Nology wires & coil, Iridium plugs, billet intakes, BC fork brace, NH damper, Pirelli Sport Demons, TPUSA FEK, bar end mirrors, polished covers.
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Old 05-05-2008   #2 (permalink)
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Favorite Bike: 2007 Thruxton
 
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Join Date: Jan 2008
Location: Denver, Colorado
Posts: 135
the one thing i forgot to mention is that i live in denver at 5280 feet above sea level, hence the jet sizes they recommended...
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'07 Thruxton, blue/checker, air box & AI removed, BC predators, Icon shocks, Nology wires & coil, Iridium plugs, billet intakes, BC fork brace, NH damper, Pirelli Sport Demons, TPUSA FEK, bar end mirrors, polished covers.
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Old 05-05-2008   #3 (permalink)
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250 Grand Prix
Favorite Bike: 2007 Thruxton
 
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Join Date: Jan 2008
Location: Denver, Colorado
Posts: 135
the one thing i forgot to mention is that i live in denver at 5280 feet above sea level, hence the jet sizes they recommended...
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'07 Thruxton, blue/checker, air box & AI removed, BC predators, Icon shocks, Nology wires & coil, Iridium plugs, billet intakes, BC fork brace, NH damper, Pirelli Sport Demons, TPUSA FEK, bar end mirrors, polished covers.
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Old 05-05-2008   #4 (permalink)
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Favorite Bike: 904cc Bonnie w/magwheels
 
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Join Date: Mar 2006
Location: Austin, Texas
Posts: 9,106
congrats, enjoy! I know exactly how you feel.
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Old 05-05-2008   #5 (permalink)
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Grand Prix 125
Favorite Bike: 04' Thruxton
 
Join Date: Jan 2008
Location: Littleton,Co.
Posts: 23
Other Motorcycle: CRF450r
Dyno

I put the 42's in my bike yesterday & it feels better. Still a different feel from your bike. Let me know the dyno results & if the shim makes any difference.
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Old 05-06-2008   #6 (permalink)
MAR
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Favorite Bike: Thruxton
 
Join Date: May 2006
Location: Brentwood Ca.
Posts: 422
Other Motorcycle: Ducati 916
Extra Motorcycle: Aprilia Falco
I also have preds. At one of the stops I go to where other bikes hang out I have been told that I am heard several miles before I arrive. They know it's me because no other bike sounds like a Triumph with Preds.
Enjoy your ride.
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