WR400/426/450 Modification Database


48 replies to this topic
  • jbrearley

Posted August 31, 2008 - 12:08 AM

#21

WR 400 2001 model Australian version
Engne: std Brass fuel screw lengthened with a tbar on the end. JD Jet kit blue needle 2nd clip 170 main jet std pilot jet BK Mod
Exhaust: GYTR tail pile stock headder
Fluids: Thumper 20w40
Suspension : Std but need stiffer springs im fat 95kg
Chasis: scott grips aftermarket wider pegs bar raisers and RC high renthal bars
Protection: B & B skid plate bark busters
Tyres & Wheels: Stock rims but brigy ned terrain MX tyres
Drive: std 14 50
Elect:L Std
Cosmetics: on industries sticker kit all over

Comments : BK mod was the best and she is now jetted and running like a dream no bog and no hesitation jus clean start to finnish of the rev range.. She chews tyres in 2 rides though now as it has its full potential .. Button would be nice but not necessary..:thumbsup:

  • mickwheeler

Posted September 01, 2008 - 08:07 AM

#22

Model/Year: 2002 WR426F
Engine: NGK iridium spark plug
Carb: 2004 YZ450F carb with Boyesen AP cover, Zip Ty fuel mix screw, both PowerNow inserts
Exhaust: FMF Power Bomb header, DRD slip on silencer
Fluids: 20W50 oil, 50/50 coolant, DOT4 brake fluid
Suspension: OEM
Chassis: ASV levers, Renthal 7/8” bars, DRD hot start lever (throttle side), Cycra Pro Bend (triple clamp) hand guards, Scott med compound grips,
Protection: MSR radiator braces, Works Connection frame guards
Tires/Wheels: Titax 280mm front rotor
Driveline: White Brothers sprockets (14T front, 50T rear), DID 520 o-ring chain
Electrical: 1.3 Ah SLA battery, Baja Designs regulator rectifier and LED tail light/license mount, Trail Tech Vapor computer
Cosmetic: black plastic, no graphics
Miscellaneous: all free mods, suspension set up
Comments: The free mods, carb update and exhaust completely changed the nature of this bike. I also have a 2002 YZ426F and the WR does everything better than the YZ, except triples and loading into the truck (it’s heavier).

  • tribalbc

Posted September 01, 2008 - 06:07 PM

#23

Model/Year: 2007 WR450
Engine: AIS removed, UNI filter,Airbox top stuffed with coarse foam, Scotts stainless oil filter, Boyesen super cooler water pump, 1.6 Rad cap
Carb:F2 fastcap, rejetted, Fuel screw
Exhaust: 08 YZ full system, PMB endo and silent insert
Suspension: Eibach springs front 0.48 and rear 5.4
Protection: Scorpion Skid Plate, Acerbis Bark Busters, WC rear calliper guard, Devol rear disc guard and Flatland front, Unabiker Rad guards, GYTR CS sprocket cover and timing plugs
Tires/Wheels: Washougal Sticky front and rear
Driveline: Ironman sprockets 13/52, Regina Z ring chain, TM designs chain guide
Chassis: ARC C-5 shorty clutch and brake lever, GYTR thumb hot start, Tusk axle blocks, Tusk 1.5" bar raisers, Spider SLX grips, YZ left foot peg mount ( kickstand removed )
Electrical: Ebatt NiCad to stock charging system
Cosmetic: Metal Mulisha graphics and 2" soft foam added to stock seat
Miscellaneous: IMS 3.1 gal tank, YZ shrouds, 06 petcock
Comments: She's just about perfect. No hesitation, smooth and strong from bottom to top. Suspension works well for the woods and decent enough for the track . My bike is plated and I race it in the Senior A class of our BC offroad series. Just a couple more mods in mind

  • revolution01

Posted November 09, 2008 - 03:27 PM

#24

Model/Year: WR 450 2003 (US Model)
Engine: 478 Big Bore, YZ Exhaust Cam, Fluidyne over size Rads,TM Design Front sprocket guard.
Carb: JD KIt, ZipTy Fuel screw, YZ throttle stop, Deep sump.
Exhaust: Powerbomb header, DEP Enduro silencer.
Fluids: Putoline Off Road 4+ oil, coolant, brake fluid.
Suspension: K-Tech full revalve and springs front and rear.
Chassis: Pro Taper Pastrana, Renthal Grips, RTT Steering Stabiliser (welded on post, re-powdercoated frame), Pivot Pegz.
Protection: Utah Skid Plate, Acerbis bend bark busters, Carbon pipe guard, Moose rear caliper/disc shark fin.
Tires/Wheels: Talon gold hubs, Exel black rims, Stainless spokes.
Driveline: DID X-Ring chain, standard front sprocket, Renthal twinring rear.
Electrical: Garmin GPS.
Cosmetic: Guts tall foam and cover.
Miscellaneous: Rekluse, Left hand rear brake, Modified airbox, Grey wire, 04 Starter upgrade, Solid rear disc, Rekluse Hot Start.
Comments: This bike takes the P**S......I love it !!!!

  • webpilot5150

Posted June 08, 2009 - 02:44 PM

#25

Model/Year:WR450F 2008
Engine: StockCams, Stock plugs, No-Toil Air filter, GYTR AIS kit
Carb: YZ throttle stop from GYTR AIS kit, stock jetting
Exhaust: Stock but with pea shooter removed
Fluids: (Bell Semi-Synth 20w50 racing oil, Preston coolant, Yamaha DOT4
Suspension: Turn rear spring down 8 turns tightened up damping and rebound 2 turns on all setttings
Chassis: Stock
Protection: D-Flex Bark Busters, Works Connection rear master cylinder guard
Tires/Wheels: Excel Rims, MSR HD Tubes
Driveline: 50 spoke blue rear sprockets, Stock 14 tooth front, stock Chain
Electrical: Stock Yamaha trip Computer, grey wire mod
Cosmetic: All Stock
Miscellaneous:
Comments:Have performed all free mods including the above mentioned and air-box restrictor plate removal

  • 2fiddyx

Posted December 06, 2009 - 05:24 PM

#26

Model/Year:2008 WR450F
Engine: AIS removed
Carb: Jetted properly
Exhaust: Stock
Fluids: Stock
Suspension: ASR4
Chassis:Clarke 3.4 tank
Protection: Flatland skid plate and radiator guards, EE rear disc guard, Cycra CRM's
Tires/Wheels: Tubliss front and rear, Motoz Tracula tires
Driveline: Revloc clutch
Electrical: Garmin GPS, Pro-Comp 3, dual sport kit,
Cosmetic: Custom graphics
Miscellaneous:Street legal, Wolfman bags
Comments:

  • drick

Posted January 21, 2010 - 05:02 PM

#27

Model/Year: WR450F / 2009

Engine: (Cams, plugs, Filters, AIS kit, etc.)
Stock, stock, No Toil Super-Flo Air Filter Kit, Gray wire & throttle screw mods

Carb: (Quickshot, Fuel Screw, Jetting Kit, Modifications, Replacement, etc.)
No, No, FMF Jet Kit, no other mods

Exhaust: (Can, Header, Mid-pipe, Modifications, etc.)
FMF Q4 S/A pipe, FMF Titanium megabomb header

Fluids: (Oil, Coolant, Brake Fluid)
Stock now - will change coolant to water wetter, oil to motul synthetic, but leave stock break fluid after break in

Suspension: (Springs, Fluids, Modifications, Replacements, etc.)
Full SPI WR Phase 4 Kit with KYB springs tuned to my weight and riding style

Chassis: (Bars, Grips, Triple Clamps, Levers, Pegs, Brakes, Lines,
Modifications, etc.)
all stock

Protection: (Skid Plate, Bark Busters, Pipe Guard, Caliper/Rotor Guards, etc.)
Ricochet aluminum skid plate, Acerbis Rally Pro I hand guards (YZ Blue)

Tires/Wheels: (Rims, Spokes, Hubs, Tubes, Axles, etc.)
stock

Driveline: (Sprockets, Chain)
all stock

Electrical: (GPS, Computers, Dual-Sport Kits, etc.)
all stock

Cosmetic: (Graphics, Plastic, Seat Covers, etc.)
all stock

Miscellaneous:
Tusk Billet Aluminum Gas Cap Blue

Comments:
so far so good, i may add a larger gas tank and the yz radiator scoops after i get a feel for the stock range of the bike.

  • tribalbc

Posted January 21, 2010 - 06:11 PM

#28

Update


Model/Year: 2007 WR450
Engine: 08 YZ cams, JE 13.5-1 piston,AIS removed, UNI filter,Airbox opened and modded and top stuffed with coarse foam, Scotts stainless oil filter, Boyesen super cooler water pump, 1.6 Rad cap
Clutch: GYTR inner, outer hub, cover and pressure plate
Carb:F2 fastcap, rejetted, Flexjet Fuel screw
Exhaust: 08 YZ full system, PMB endo and silent insert
Suspension:Smart performance Phase 4 kit forks, revalved rear, Eibach springs front 0.48 and stock YZ Ti rear 5.5
Protection: Scorpion Skid Plate, Acerbis Bark Busters, WC rear calliper guard, Devol rear disc guard and Flatland front, Unabiker Rad guards, GYTR CS sprocket cover and timing plugs
Tires/Wheels: Washougal Sticky front and rear
Driveline: Aluminum rear sprocket 13/51, GYTR X-ring chain, TM designs chain guide, TM designs chain slider
Chassis: ARC C-5 shorty clutch and brake lever, GYTR thumb hot start, Tusk axle blocks, Tusk 1.5" bar raisers, Spider SLX grips, YZ left foot peg mount ( kickstand removed ), Moose titanium pegs, Stainless steel front brake line
Electrical: Ebatt Lithium to stock charging system
Cosmetic: Metal Mulisha graphics and 2" soft foam added to stock seat
Miscellaneous: IMS 3.1 gal tank, YZ shrouds, 06 petcock
Comments: The 08 YZ cams and HC piston are a perfect combo for smooth power with lots of pull. GYTR clutch is a thing of beauty as well as the Smart Performance modded suspension.It's a woods weapon!!


Edited by tribalbc, January 21, 2010 - 06:14 PM.
add


  • drick

Posted February 11, 2010 - 07:32 AM

#29

Model/Year: WR450F / 2009

Engine: (Cams, plugs, Filters, AIS kit, etc.)
Stock, stock, No Toil Super-Flo Air Filter Kit, Gray wire & throttle screw mods

Carb: (Quickshot, Fuel Screw, Jetting Kit, Modifications, Replacement, etc.)
No, No, FMF Jet Kit, no other mods

Exhaust: (Can, Header, Mid-pipe, Modifications, etc.)
FMF Q4 S/A pipe, FMF Titanium megabomb header

Fluids: (Oil, Coolant, Brake Fluid)
Stock now - will change coolant to water wetter, oil to motul synthetic, but leave stock break fluid after break in

Suspension: (Springs, Fluids, Modifications, Replacements, etc.)
Full SPI WR Phase 4 Kit with KYB springs tuned to my weight and riding style

Chassis: (Bars, Grips, Triple Clamps, Levers, Pegs, Brakes, Lines,
Modifications, etc.)
all stock

Protection: (Skid Plate, Bark Busters, Pipe Guard, Caliper/Rotor Guards, etc.)
Ricochet aluminum skid plate, Acerbis Rally Pro I hand guards (YZ Blue)

Tires/Wheels: (Rims, Spokes, Hubs, Tubes, Axles, etc.)
stock

Driveline: (Sprockets, Chain)
all stock

Electrical: (GPS, Computers, Dual-Sport Kits, etc.)
all stock

Cosmetic: (Graphics, Plastic, Seat Covers, etc.)
all stock

Miscellaneous:
Tusk Billet Aluminum Gas Cap Blue

Comments:
so far so good, i may add a larger gas tank and the yz radiator scoops after i get a feel for the stock range of the bike.


added
- works connection rear caliper guard + rear master reservoir cylinder guard
- oil to motul semi syn + water wetter for radiator fluid
- tm designs chain slider

pending
- works connection fuel screw, not installed yet
- hyde racing frame guards ordered, not installed yet (probably going to return)

Edited by drick, February 20, 2010 - 07:17 PM.


  • drick

Posted March 11, 2010 - 09:06 AM

#30

added
- works connection rear caliper guard + rear master reservoir cylinder guard
- oil to motul semi syn + water wetter for radiator fluid
- tm designs chain slider

pending
- works connection fuel screw, not installed yet
- hyde racing frame guards ordered, not installed yet (probably going to return)


old pending from above now completed
installed WC fuel mixture screw
returned hyde frame guards, what a PITA

new items not listed previously now installed
-51T TAG aluminum rear sprocket
-Galfer stainless steel brake lines (F&R)
-T.M. Designworks Chain Slider
-T.M. Designworks Factory Edition 1 Rear Chain Guide
-Works Connection Radiator Guard
-Works Connection oil fill plug

pending
-GYTR AIS removal kit
-GYTR rear brake clevis
-GYTR brake line pinch
-Boyesen supercooler kit
-BarnumsPro clean air induction kit
-ASV F3 Brake lever
-ASV F3 Pro clutch w HS
-Works Connection Rear Brake Reservoir Cap Blue

under consideration
-IMS 3.1 gallon tank
-YZ shrouds to go with it
-Scotts stainless steel oil filter
-new triple clamp kit, struggling to find one i like (i want the ProTaper 4.3 but they don't fit a WR)
-steering stabilizer

Edited by drick, March 15, 2010 - 07:52 PM.


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  • nordik

Posted August 29, 2010 - 10:36 PM

#31

2001 WR 426

Engine: (Cams, plugs, Filters, AIS kit, etc.)
YZ 450 hot cams
K&N Filter

Carb: (Quickshot, Fuel Screw, Jetting Kit, Modifications, Replacement, etc.)
JD Jet kit - 170, Zypco Fuel Screw, Snorkel out

Excel supermoto wheels

Signals/plate CA

  • forsta_02

Posted December 14, 2010 - 06:01 PM

#32

2011 WR450F:
Engine: Twin Air Filter
Carb:
Exhaust: Pea shooter removed, and also 1 baffle
Fluids: yamalube
Suspension: Fork Bleeders
Chassis:
Protection: Bark busters
Tires/Wheels:
Driveline: 13t/ 47t
Electrical:
Cosmetic:
Miscellaneous:

  • teamtree

Posted December 15, 2010 - 03:51 PM

#33

2008/Wr450:
Engine: Stock
Carb: Stock w/ Throttle Stop Mod and Air Box Mod
Exhaust: Stock w/o Pea Shooter
Fluids: IMS 3.2 gal Tank, Mobil 1 synthetic oil
Suspension: Still stock (need to do somthing about that for my 225lb ass)
Chassis: Scotts Stabilizer Under bar w/risers, Power Pegz
Protection: Acerbis Brush/Hand gaurds
Tires/Wheels:Cheng Shin Trials tire(Bought the cheap one to see if I like a Trials Tire)
Driveline: Stock
Electrical: Grey Wire mod, Battery Tender
Cosmetic: Nothing Special
Miscellaneous:
Comments: I LOVE THIS MOTORCYCLE!

  • DB_Cooper

Posted December 17, 2010 - 04:27 PM

#34

Model-2005 WR 450
Engine:YZ EXHAUST CAM-AIS REMOVED-HEAVILY MODIFIED OEM AIRBOX WITH AFTERMKT FOAM
Carb: BIGGER PILOT-MAIN JET.QUICK ADJUST AIR NEEDLE-BOYESEN AIR DIAPHRAM COVER- "OBDVR" NEEDLE IN 4TH CLIP BIG BIG IMPROVEMENT!
Exhaust: YZ 450 TITANIUM HEADPIPE AND MUFFLER THAT IS SHORTENED 1 1/2"
Fluids:SYN BRAKE FLUIDS-CHEEP OIL CHANGED EVERY 2 RIDES...!
Suspension: DEWAYANE JONES REAR SHOCK MODIFIED WITH TITANIUM SPRING. FACTORY SUZUKI SHOWA FORKS IN MODIFIED OEM TREES [SORRY GUYS!]
Chassis: CR TALL DESERT BARS-MS WIDE PEGS-OEM SEAT WITH EXTRA SOFT/TALL FOAM AND NEW COVER-FOLDING LEVERS-IMS 3.2 BLUE PLASTIC TANK-ACERBIS YZ BLUE SIDE PANELS
Protection: SHOWA CARBON FIBER FORK AND ROTOR GUARDS-CARBON FIBER SPROKET AND RR CALIPER GUARDS-BARK BUSTERS-BANZI FRONT HEAD PIPE PROTECTER-DEVOL RAD GUARD-DEVOL SKID PLATE
Tires/Wheels: OEM REAR WHEEL-DRZ 400 FRONT WHEEL WITH ODO DRIVE UNIT-TUBLESS TUBES-IVE TRIED ABOUT EVERY DIFFERENT TIRE COMBONATION...
Driveline: 15/48T SPROKETS [ALUMINUM REAR] TSUBAKI "O"-RING CHAIN
Electrical:NO GREY WIRE- SELF-INSTALLED / MADE DUAL SPORT KIT-ACERBIS LED REAR TAILITE/LICENSE COMBO-"HOT" GRIPS INSTALLED-OUTLET FOR ELECTRIC AIR PUMP
Cosmetic: ALL BLUE PLASTICS AND CUSTOM MADE BLUE/BLACK "GRIPPER" SEAT COVER
Miscellaneous: LOTS OF SMALL MISC ANADIZED BOLTS-HARDWARE
Comments: WHAT A GREAT BIKE! ALMOST 10,000 MILES OF DUAL-SPORT RIDING AND STILL RUNS AND HANDLES FANTASTIC.:excuseme:

  • DB_Cooper

Posted December 17, 2010 - 04:47 PM

#35

Model-2005 WR 450
Engine:YZ EXHAUST CAM-AIS REMOVED-HEAVILY MODIFIED OEM AIRBOX WITH AFTERMKT FOAM
Carb: BIGGER PILOT-MAIN JET.QUICK ADJUST AIR NEEDLE-BOYESEN AIR DIAPHRAM COVER- "OBDVR" NEEDLE IN 4TH CLIP BIG BIG IMPROVEMENT!
Exhaust: YZ 450 TITANIUM HEADPIPE AND MUFFLER THAT IS SHORTENED 1 1/2"
Fluids:SYN BRAKE FLUIDS-CHEEP OIL CHANGED EVERY 2 RIDES...!
Suspension: DEWAYANE JONES REAR SHOCK MODIFIED WITH TITANIUM SPRING. FACTORY SUZUKI SHOWA FORKS IN MODIFIED OEM TREES [SORRY GUYS!]
Chassis: CR TALL DESERT BARS-MS WIDE PEGS-OEM SEAT WITH EXTRA SOFT/TALL FOAM AND NEW COVER-FOLDING LEVERS-IMS 3.2 BLUE PLASTIC TANK-ACERBIS YZ BLUE SIDE PANELS
Protection: SHOWA CARBON FIBER FORK AND ROTOR GUARDS-CARBON FIBER SPROKET AND RR CALIPER GUARDS-BARK BUSTERS-BANZI FRONT HEAD PIPE PROTECTER-DEVOL RAD GUARD-DEVOL SKID PLATE
Tires/Wheels: OEM REAR WHEEL-DRZ 400 FRONT WHEEL WITH ODO DRIVE UNIT-TUBLESS TUBES-IVE TRIED ABOUT EVERY DIFFERENT TIRE COMBONATION...
Driveline: 15/48T SPROKETS [ALUMINUM REAR] TSUBAKI "O"-RING CHAIN
Electrical:NO GREY WIRE- SELF-INSTALLED / MADE DUAL SPORT KIT-ACERBIS LED REAR TAILITE/LICENSE COMBO-"HOT" GRIPS INSTALLED-OUTLET FOR ELECTRIC AIR PUMP
Cosmetic: ALL BLUE PLASTICS AND CUSTOM MADE BLUE/BLACK "GRIPPER" SEAT COVER
Miscellaneous: LOTS OF SMALL MISC ANADIZED BOLTS-HARDWARE
Comments: WHAT A GREAT BIKE! ALMOST 10,000 MILES OF DUAL-SPORT RIDING AND STILL RUNS AND HANDLES FANTASTIC.:excuseme:

  • pdunlop

Posted December 19, 2010 - 02:34 AM

#36

Model/Year: 2004 WR450F
Engine: Wiseco piston kit, airbox snorkel removed, engine vent hose re-routed
Carb: 2006 YZ450 carby (rejetted to suit with hoses T'd and re-routed)
Exhaust: FMF power-bomb header, FMF Ti4 muffler with Quiet Core insert
Fluids: Silkolene Comp 4T engine oil
Suspension: 2007 YZ450 forks, 2008 YZ450 shock
Chassis: Tag T2 tapered bars, Renthal top triple clamp, 2007 WR bottom clamp, HEL performance stainless brake line
Protection: B&B alloy bash plate, B&B frame guards, Bark Busters, Devol radiator guards
Tires/Wheels: Standard wheels, Bridgestone M403/M404 tyres
Driveline: Renthal chain & sprockets 14/52
Electrical: Standard with MotoBatt battery
Cosmetic: Factory Effex EVO6 graphics, late-model headlight, YZ style rear guard with LED light
Miscellaneous: Speedo drive eliminator, modified chain slider
Comments: A very strong, linear power delivery - great fun to ride!

Edited by pdunlop, December 19, 2010 - 05:00 PM.


  • chrisl74

Posted August 10, 2011 - 07:02 AM

#37

Hi. I've got a 2005 Wr 450 with an FMF megabomb header, and a HMF pipe. I just tried to have a quickshot 3 device installed and it keeps leaking from the needle. This is the second one, and same thing! I have an extra part left over from both installs and can't figure where it could go. Looks like a medal straw. Any advice? Also, the bike feels slower with this on after I had the jet changed.

  • roostinrick

Posted November 21, 2011 - 07:52 PM

#38

I just bought a leftover 09wr450 and am really excited about the possibilities of this machine. I am looking for some tips and advice from some fellow 4-strokers on how to make this thing really sing..

  • mongial

Posted November 22, 2011 - 06:27 PM

#39

I just bought a leftover 09wr450 and am really excited about the possibilities of this machine. I am looking for some tips and advice from some fellow 4-strokers on how to make this thing really sing..


Look in the sticky's for the NEWBIE SURVIVAL GUIDE!

  • tribalbc

Posted November 22, 2011 - 08:02 PM

#40

Long overdue for an update. May not ride the WR much anymore but she sure runs strong. A low end torque monster.



Model/Year: 2007 WR450
Engine: Flow ported head, YZ intake cam, WR exhaust cam, JE 13.5:1 piston, full GYTR clutch, AIS removed, Uni filter
Carb: R&D fuel screw, 175 main, GYTR needle 4th clip, 48 pilot
Exhaust: Jardine RT-5 full system
Suspension: Smart performance Phase 4 kit forks, revalved rear, Eibach springs front 0.48 and stock YZ Ti rear 5.5
Protection: Scorpion Skid Plate, Acerbis Bark Busters, WC rear calliper guard, Devol rear disc guard and Flatland front, Unabiker Rad guards, GYTR CS sprocket cover and timing plugs
Tires/Wheels: Washougal Sticky front and rear
Driveline: Aluminum rear sprocket 13/51, GYTR X-ring chain, TM designs chain guide, TM designs chain slider
Chassis: ARC C-5 shorty clutch and brake lever, GYTR thumb hot start, Tusk axle blocks, Tusk 1.5" bar raisers, YZ left foot peg mount ( kickstand removed ), Moose titanium pegs, Stainless steel front brake line
Electrical: Ebatt Lithium to stock charging system
Cosmetic: One industries graphics, Guts tall medium foam, factory edition seat cover
Miscellaneous: IMS 3.1 gal tank, YZ shrouds, 06 petcock
Comments: This thing is a torque monster, will walk uphill, low idle, not touching throttle. Can pull a high gear anywere, impossible to stall.

Edited by tribalbc, November 23, 2011 - 06:03 AM.





 
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