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08-08-2011, 01:34 PM
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#31 (permalink) |
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:::LT500 Rider:::
Join Date: May 2011
Location: Westchester NY
Posts: 1,245
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Did you have better throttle response after you cut the 3 coils off the spring? Would you say that 3 is too many or it's a perfect amount?
__________________
2003 Suzuki Z400 - SOLD  Fully Worked & Race Ready, '98 Yamaha YZ125 - My New Toy 
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03-04-2012, 09:50 AM
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#32 (permalink) |
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:::Rookie Rider:::
Join Date: Mar 2012
Location: South Lyon,MI
Posts: 3
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Hi, im new here but i was wanting to do this mod as i have been reading about it alot but im not sure were the spring is located or what it is behind so i was wondering if anyone have any pictures as to what the spring is behind?
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03-04-2012, 10:23 AM
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#33 (permalink) |
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:::Get a life! You're over 5000 posts:::
 
Join Date: Oct 2008
Location: Southern California
Posts: 5,260
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Top of the carb, under the black thing with two screws holding it on. Remove the two screws.
 take the cover off and that's where the spring is.  If it were me I'd remove plastics and tank as needed to get to it. You can also pull the carb out. I'm not sure you can twist it far enough while still in the boots to get to the top.
__________________
2005 Z-400 Mine January 2011 QOTM 2004 Z-400 Brad'Z October 2011 QOTM http://www.suzukicentral.com/forums/...tm-winner.html 2004 Z-400 Wife's 1996 Sandsprite IV (sandrail) MINE Sponsors: Coors Light.............I sponsor them  !Life is tough...........it's tougher if you're stupid. |
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03-04-2012, 10:31 AM
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#34 (permalink) |
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:::LT500 Rider:::
Join Date: May 2011
Location: Westchester NY
Posts: 1,245
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If you pull the slide out (the black seal around the top of the carb) you will notice on the bottom of the slide there are 2 holes. These are the vacuum holes. If you drill them out to one size larger (using a 1/8" bit), the slide will respond quicker. This along with the spring trimming makes a pretty noticeable difference in my opinion..
__________________
2003 Suzuki Z400 - SOLD Fully Worked & Race Ready, '98 Yamaha YZ125 - My New Toy
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03-04-2012, 11:20 AM
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#35 (permalink) |
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:::Ozark 250 rider:::
Join Date: May 2011
Location: Ireland
Posts: 363
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I have this mod done and can honestly say there is an improvement with it!
__________________
2008 Suzuki LT-Z400 Removed Lid D.I.D Timing Chain Motion Pro Clutch Cable Intake HotCam Snorkel Removed Dynojetted Jardine Slip-on Pipe Renthal Non O-Ring Gold Chain Renthal Sprockets (14/40) (also 13/40) BlingStar Nerfs Pro Elite Bumper "Home-Made" Steel Grab Bar Tag X5 Hi-Bend Bars Size 10 Rear Rims with Kenda Klaw 6 Ply Tyres LED Taillight "Spize" Aluminium Dash Carb Spring Mod Team Suzuki/Yoshimura Graphics Kit |
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03-04-2012, 11:52 AM
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#36 (permalink) |
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:::Rookie Rider:::
Join Date: Mar 2012
Location: South Lyon,MI
Posts: 3
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Thanks guys i will most likely be doing this in a few days seeing as ill have no school , i will make sure to send feedback but will this mess with any jetting or other things i should look out for? thanks again.
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2004 DVX Tusk nerf bars DG front bumper Yoshi team Suzuki slip on tinted headlight and tail light H.I.Ds Powermad hand guards |
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03-04-2012, 02:06 PM
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#37 (permalink) |
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:::Ozark 250 rider:::
Join Date: May 2011
Location: Ireland
Posts: 363
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No no rejetting will be required as it does not alter the air/fuel mixture. As mentioned above do not cut too many coils off and you may get a hanging throttle. Let us know how you get on.
__________________
2008 Suzuki LT-Z400 Removed Lid D.I.D Timing Chain Motion Pro Clutch Cable Intake HotCam Snorkel Removed Dynojetted Jardine Slip-on Pipe Renthal Non O-Ring Gold Chain Renthal Sprockets (14/40) (also 13/40) BlingStar Nerfs Pro Elite Bumper "Home-Made" Steel Grab Bar Tag X5 Hi-Bend Bars Size 10 Rear Rims with Kenda Klaw 6 Ply Tyres LED Taillight "Spize" Aluminium Dash Carb Spring Mod Team Suzuki/Yoshimura Graphics Kit |
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03-04-2012, 02:59 PM
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#38 (permalink) |
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:::Ready for a fast quad?:::
Join Date: Aug 2011
Location: Boyceville, WI / Downing, WI
Posts: 730
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When I get my Z back I think I will do this, if I mess up I'll just get a new spring.
__________________
2003 Z400
Engine Mods: Big Gun ES Slip on - Inspection Plug Pull Choke - 170 main - No Lid Wiseco Piston and Rings Suspension, Steering & Chassis: MSR Motion Bars w/ Pro Taper Clamps PRM Rear Skid Plate - DG Alloy Nerfs - LTR Pegs DWT Red Label Front Rims - Stock Rear Rims Maxxis Razr Tires Misc: Modquad Block Off - ProDesign Tether MSR Grips - Crank Breather - Blob Removed 96L/40T/14T Gearing |
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