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 TBS needles
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Joined: Feb 2008
Posts: 44
Greenhorn
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OP
Greenhorn
Joined: Feb 2008
Posts: 44 |
Can anyone out there tell me where to pick up Truxton needles and what the advantage of using them is?
Will be running EPCO's with Uni in Stock Box
Greg
04 BumbleBee SM
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Re: TBS needles
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Joined: Jan 2005
Posts: 2,968 Likes: 1
Loquacious
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Loquacious
Joined: Jan 2005
Posts: 2,968 Likes: 1 |
I wouldn't use the Thruxton needles. Some of us went to Thunderbird Sport needles but I found them too rich. The NH dyno runs seemed to show that the stock needles with 1 shim was the best setup. The TBS needles seemed to fix a mid range power issue but were really rich at the high end. I run Specialty Spares with Uni and drilled airbox 138 mains. I found going back to stock needles and 1 shim was best. You can go to pretty much any dealer and order TBS needles or Thruxton needles but remember the TBS is a triple. Don't order a set of TBS needles cause you'll get 3. Try adding a shim to each stock needle first. If you're not happy then order the new needles. This thread will probably be moved by the MODS to the performance forum. 
Last edited by Fishercat; 02/23/2008 9:17 AM.
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Re: TBS needles
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Joined: May 2007
Posts: 6,432 Likes: 1
Worn Saddle
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Worn Saddle
Joined: May 2007
Posts: 6,432 Likes: 1 |
Quote:
Can anyone out there tell me where to pick up Truxton needles and what the advantage of using them is?
Will be running EPCO's with Uni in Stock Box
They have a much more aggressive taper so they meter more fuel at the same throttle settings than the stock or TBS needles. I have them but I also have a smaller jet to compensate for the taper; I'm running a 125 main on a set up where most folks are running 132s (K&N in a stock box with "velocity mouth" inlet and Specialty Spares pipes). I like the results but I also haven't been to the dyno man to see what the real story is so I only have my "butt-ometer" to back this up. 
A positive attitude may not solve all your problems, but it will annoy enough people to make it worth the effort. Herm Albright (1876 - 1944)
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Re: TBS needles
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Joined: Jan 2005
Posts: 3,753
Loquacious
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Loquacious
Joined: Jan 2005
Posts: 3,753 |
stock needles with shims worked for me when i had stock carbs
Frank
(Former)05 BA tbike pipes, ai removed, Freak, mikuni hsr 42's, 904, ported/polished head, 1mm oversized valves
NOW-2010 silver and black tbird
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Re: TBS needles
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Joined: Jan 2005
Posts: 12,877
Should be Riding
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Should be Riding
Joined: Jan 2005
Posts: 12,877 |
Got mine at the dealer, but I'm running a Freak, not airbox... Good thing is needles/shims are the easiest and cheapest thing to change regarding the carbs, so I say go for it. You can always go back. Might try Frank's suggestion of a shim or two first.
Benny
Black & Silver '02
Too many mods to list
Not enough miles ridden
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