Lowering and Performance Links Available For The Following:
Aprilia 06-up RXV/SXV/450/550
Lowers rear 1 3/4".
BMW F650CS
Belt Drive.
BMW F650 & Aprilia Pegasus/Pegaso
Non-Fuel Injected.
1" & 2" lowering links available.
BMW 2000-up F/G650iGS/Dakar
1" & 2" lowering links available.
Gas/Gas 200/250/300/450FSE
Honda 2000-up
CR125/250
Honda 
CRF150R/BW
1 3/4" rear lowering.
Honda 
CRF150/230
Honda 08-up
CRF230L/M Dual Sport & 98-02 SL230.
Honda 
CRF250R/X/450R/X
Honda 2010-2011 CRF250R
7/8" and 1.6" lowering lengths available.
Honda 09-up CRF450R
7/8" and 1.6" lowering  lengths available.
Honda 1986-95 XR250R & 85 only XR350R
Honda 96-up
XR250/400R
Honda 85-2000 XR600R
Honda 93-UP XR650L
Honda 99-UP XR650R
liguid cooled 
Husqvarna 03-07 Four Stroke
3/4"-1.5" Rear Lowering on most models.
Husqvarna 08-up
Fits: TC/TE/TXC/250/310/
450/510 & SMR450/510.
1" & 1.5" Rear Lowering Links.
Kawasaki KDX200/220
1995-up 
Kawasaki KL250
Super Sherpa
2000-up
Kawasaki KL600
Fits 84-86.  2.5" rear lowering.
Kawasaki 
KLR250
85-up
Kawasaki KLR650
Fits:  85-07 KLR650.  1.25" &  2" Rear Lowering Links Available.
Kawasaki KLR650
Fits:  08-up KLR650.  1.25" &  2" Rear Lowering. 
Kawasaki 
KLX250/300
94-up. 3 Lengths. 
Also Fits: 06-up KLX250S Dual Sports & 09-up KLX250SF Supermotard.
Kawasaki KLX400
2003
Kawasaki KLX450R
Fits: 2008-up.
Kawasaki KLX650
Fits:  93-96 KLX650 
1 5/8" Rear Lowering.
Kawasaki
KX/RM65
Kawasaki KX80/85/100
Also Fits:  03-up RM100
Kawasaki KX125/250
1997-03
Kawasaki 
KX125
Fits: 2004-07 Two Stroke
Lowers rear 1 1/4 inches
Kawasaki 
KX250
Fits: 2004 Two Stroke
Lowers rear 1 3/8th"
Kawasaki KXF250
Fits: 04-05 Four Stroke
Lowers rear 1 1/4"
 Kawasaki KX250F/450F
Fits: 2006-2011
2011 KTM 350/350/450
Fits: 2011-up 250SX/XC-F/XCF-W/
350SX/XC-F/450SX.
3/4" & 1.25" rear lowering.
KTM: Adventure, Duke, All LC4's & 625 SXC.
See Order Formfor listings and lowering amounts:
KTM 690 
Fits: 08-up Enduro/SMC.
Lowers rear 1" & 1 5/8"
Suzuki Gladius SFV650.
Fits: 09-up. 
Lowers rear 1 1/8"
Suzuki DL650/1000 V-Strom 1 1/8"
Also fits 03-up SV650 3/4" lowering.
Suzuki DR250/S & DR350/S/E
Suzuki DRZ250E
Suzuki DRZ400E/S/SM
2000-up
Suzuki RM125/250
Fits: 98-2000 RM125/250
Suzuki RM125/250
Fits: 2001-2003.
Suzuki RM125/250
Fits: 04-07 RM125/250.
Suzuki RMZ250
Fits:  04-06 Four Stroke
Lowers rear 1 1/4".
Suzuki RMZ250/450
Fits:  07-09 RMZ250 & 05-09 RMZ450.
Suzuki RMX450Z & RMZ250/450
Fits:  2010-up 
3/4" & 1 5/8" rear lowering.
Yamaha FJR1300 Sport Tour
Fits:  03-05, Lowers rear 7/8". 
Yamaha FJR1300 Sport Tour
Fits:  2006-up, Lowers rear 7/8". 
Yamaha TTR250
1993-up
Other Products Available:
Suzuki DR650 Eibach 883 Spring Adapter
Suzuki Dualsport 2" Mirror Extenders
"T"-Handle Extended FuelScrews Available For:
KTM/CRF/DRZ/KXF/ RMF/WR/YZF and now for the Kawasaki KLR250/650/KLX250 dual sport. Honda CRF230/XR250/400/
600/650 and TRX450 Four Wheeler.
Extended Fuelscrews Also Available For: 
DR250/350 dirt model/S/SE, DRZ400S, DR650 SE models.
See Order Form for complete Extended Fuelscrew listings.
 

KoubaLink.com

  
Motorcycle Suspension Components
with products available from Kientech Engineering
Air/Fuel Screw Extensions and Replacements


If you have ever tried to adjust the air/fuel mixture adjusting screw on a newer Honda, Kawasaki, KTM, Suzuki, or
Yamaha while the engine is running, one of these is a must! 

To adjust these mixture screws, the engine needs to be warmed up and running at a low idle. Then simply turn the "T" handle slowly in (clockwise) until the idle slows, then turn it out (counterclockwise) until the idle slows again, noting how many turns you made in between. Then turn it half way between the low idle points. That is normally as good as it gets.

You can also determine if the pilot jet is of the proper size. If the low idle point never comes when turning the fuel/air adjuster out, then a larger pilot may be required, and if low idle never comes after turning it in, then a smaller pilot jet may be required.

The "T" handle extension $16.00 (pictured below FSE-1) presses onto the existing mixture screw and eliminates the need to carry a special tool so one can dial in the mixture to minimize that stall/cough right off idle. They really come in handy for adjusting for elevation changes of more than 500 feet.  **Note:  Will "not" work on some of the later Model FCR carbs with the tamper proof flat side rather than the screw driver slot adjustment.

In addition to the fuel screw extension, we also have available a complete extended "replacement" "T" Handle fuel screw for $20.00, (pictured below FS-1 ) then if something goes wrong or if you sell your bike, you still have your OEM fuel screw as a spare. This complete replacement fuel screw may not fit the aftermarket FCR carbs such as the ones from Carb  parts or Sudco, but the fuel screw extension only should work fine except on the 07 or newer Honda CRF250/450X or the  Kawasaki KX250F/450F models. (These models have a flat side on the shank on the stock fuel screw and the extension may not fit correctly.  We recommend the replacement extended fuel screw for those.)  To remove the flat sided stock fuel screw an 18 guage (blue) insulated butt connector can be used.  Thanks Brian C. for the tip from the CRF's Only Forum.

(See Order Form for all FCR applications.)

                                              PN: FSE-1                                   PN:  FS-1
 
 Fuelscrews Below Fit:

PN. FS-2. Fits:  Kawasaki 84-up KLR250/600/650, 95-up KLX250/300, & 06-up KLX250 Dual Sport. 
PN. FS-3.  Fits:  Honda 2003-up Honda CRF100/150F/230F (will not fit the CRF230L duel sport model) & 96-up XR100/200/250/400/600/650R. 
 

                        PN:  FS-2                                            PN:  FS-3


We also have available from Kientech Engineering extended fuelscrews for the Suzuki DRZ400 "S", and the 1990-99 DR250/350/SE/1996-up DR650 models. (Pictured below) 


                   PN:  KFS-1                                        PN:  KFS-2 
  Also fits:  Yamaha TTR225 and the
  Suzuki DR125/200 with the CV carb. 
                                                                                     
    Price for the above Kientech extended fuelscrews is $16. (See 0rder Form for complete listings)
Presently we do not have a distributor for our fuel screw products, and  require a $25.00 min order (including both the replacement fuel screws and extensions) to cover the packaging and shipping costs, so if you have a friend that can use one also, there would not be a $25.00 min. charge when ordering two or more of any type fuel screw or extension. 

* Note:  All the above fuel screws have a maximum usable range of approx. 2.5 turns out from seated, any farther will take the tension off of the friction spring and allow the fuel screw to vibrate out. :-(  If your bike runs the best at near 3+ 
turns out, a larger pilot is most likely required.  Also if you do loose one while riding, plug the hole so as dirt cannot enter in and you should be able to continue riding and just have an erratic idle.
 
 

ABOUT US | FAQ | CUSTOMER FEEDBACK | Order Form


Norm Kouba
Email: njkouba@ix.netcom.com
 
 
 

OUR GOAL
IS TO BUILD
THE BEST POSSIBLE
SUSPENSION COMPONENTS
AND PROVIDE
THE CUSTOMER
WITH THE HIGHEST
LEVEL OF SERVICE
ALL OUR PRODUCTS ARE MADE IN THE USA



 
 
 
 
 
 
 
 
 
 
 

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