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Summary of Contents for Xray XB8

  • Page 2 Fax: (214) 744-2401 excellent care of our customers. Email: info@teamxray.com Email: xray@rcamerica.com You can join thousands of XRAY fans and enthusiasts in our online community at: www.teamxray.com FAILURE TO FOLLOW THESE INSTRUCTIONS WILL BE CONSIDERED AS ABUSE AND/OR NEGLECT. SAFETY PRECAUTIONS WARNING: This product contains a chemical known to the state of California to for maximum performance.
  • Page 3 XRAY does not pay nor refund shipping on any component sent to XRAY or Part or parts missing from this kit must be reported within 30 days of purchase. No its distributors for warranty.
  • Page 4: Tools Required

    TOOLS REQUIRED Allen 1.5mm (#111545 - HUDY EXCLUSIVE Limited Edition) Combination Pliers (HUDY #189020) Allen 2.0mm (#112045 - HUDY EXCLUSIVE Limited Edition) Side Cutters (HUDY #189010) Allen 2.5mm (#112545 - HUDY EXCLUSIVE Limited Edition) Pocket Hobby Knife (HUDY #188981) Ball Allen 2.5mm (#132545 - HUDY EXCLUSIVE Limited Edition) Allen 3.0mm (#113045 - HUDY EXCLUSIVE Limited Edition) Cross Wrench 3mm (HUDY #107581) Arm Reamer 3.0mm (#107643 - HUDY EXCLUSIVE Limited Edition)
  • Page 5: Equipment Included

    Here are what the different colors mean: XB8 TECH TIPS If there is too much or too little diff side play, this may create non-optimal gear mesh between the diff gear and the pinion drive gear. This FRONT &...
  • Page 6 1. FRONT & REAR DIFFERENTIALS XRAY BALL-BEARINGS 355065 #930816 8x16x5 GREASE STEEL OPTION 940816 #930817 8x16x5 OIL STEEL OPTION 355022 BAG 00.9 #940816 8x16x5 GREASE RUBBER INCLUDED #940817 8x16x5 OIL RUBBER OPTION 971061 964030 355091 355031 980261 355084 971061 # 355064...
  • Page 7 1. FRONT & REAR DIFFERENTIALS IMPORTANT! Use the same the diff outdrives on both ends of a diff. ➌ 940816 ➋ BB 8x16x5 Graphite Grease STEP DETAIL ➎ (HUDY #106210) Graphite Grease DETAIL (HUDY #106210) 964060 Use HUDY Ball-Bearing Grease ➍...
  • Page 8: Center Differential

    1. CENTER DIFFERENTIAL XRAY BALL-BEARINGS 355072 #930816 8x16x5 GREASE STEEL OPTION 964030 #930817 8x16x5 OIL STEEL OPTION BAG 01.1.9 #940816 8x16x5 GREASE RUBBER INCLUDED 355031 #940817 8x16x5 OIL RUBBER OPTION 940816 964060 BAG 00.9 BAG 01.1.9 CENTER DIFF SPUR GEARS - LARGE...
  • Page 9 1. CENTER DIFFERENTIAL ➌ ➋ Graphite Grease 940816 (HUDY #106210) BB 8x16x5 ➊ STEP DETAIL ➎ Use HUDY Ball-Bearing Grease DETAIL #106220 - STANDARD ➍ #106221 - BLUE 964060 #106222 - RED Graphite Grease S 6x18x0.2 ➏ (HUDY #106210) 971061 O 6x1.55 ➎...
  • Page 10: Front Transmission

    #355432 FRONT CENTRAL DOGBONE DRIVE SHAFT 85mm 352009 SEMI-SPLIT DIFF BULKHEAD BLOCK SET FRONT/REAR 901504 HEX SCREW SB M5x4 (10) 352015 XB8 GEARBOX PINION HEIGHT INSERT (1+1) 902306 HEX SCREW SH M3x6 (10) 352073 XB8 GEARBOX DIFF HEIGHT INSERT (2+2) 908312...
  • Page 11 2. FRONT TRANSMISSION Push joint against gear to remove gap. Tighten setscrew onto gear flat spot. DETAIL 901504 SB M5x4 ➌ NOTE ORIENTATION ➌ Follow the TECH TIP on page 5 for drive shaft pin servicing. ➋ STEP DETAIL ➌ ➊...
  • Page 12: Rear Transmission

    REAR CENTRAL CVD DRIVE SHAFT 115MM - HUDY SPRING STEEL™ 352009 SEMI-SPLIT DIFF BULKHEAD BLOCK SET FRONT/REAR 901504 HEX SCREW SB M5x4 (10) 352015 XB8 GEARBOX PINION HEIGHT INSERT (1+1) 902306 HEX SCREW SH M3x6 (10) 352073 XB8 GEARBOX DIFF HEIGHT INSERT (2+2) 908312...
  • Page 13 (IGR) REAR DIFF 3.000cSt DETAIL LOWER 908316 Bevel & Differential SCH M3x16 LOWER LOWER TIGHTEN 3x16mm SCREWS TIGHTEN SECOND Graphite Grease 3x12mm SCREWS (HUDY #106210) FIRST DETAIL STEP DETAIL STEP DETAIL #353056 XB8 ALU REAR SHOCK TOWER 908312 SCH M3x12...
  • Page 14: Rear Suspension

    3. REAR SUSPENSION FLAT - REAR SUSPENSION ARMS #353115 MEDIUM OPTION #353116 HARD INCLUDED #353116-XH X-HARD OPTION 901305 #353116-G GRAPHITE OPTION 903308 LSM - REAR SUSPENSION ARMS #353124-H HARD (R) OPTION #353125-H HARD (L) OPTION 352009 #353124-G GRAPHITE (R) OPTION #353125-G GRAPHITE (L) OPTION 353424 901303...
  • Page 15 TRACK WIDTH The XRAY rear alu lower suspension holders provide even greater range of adjustment for the rear suspension. Using different combinations of eccentric bushings, fine adjustment of rear anti-squat, rear toe-in, rear roll center, and rear track-width can be obtained. For more information about the influence of rear anti-squat, rear toe-in, rear roll center and rear track width on car handling, please refer to HUDY Off-Road Set-up Book (#209099).
  • Page 16 3. REAR SUSPENSION Install the pivot balls with Professional Multi-Tool (HUDY #183011). DETAIL 1.5mm 901312 SB M3x12 901303 SB M3x3 STEP DETAIL ➍ 901305 SB M3x5 DETAIL 3x3mm ➌ 902318 SH M3x18 3x18mm 903308 SFH M3x8 ➋ ➊ SET-UP 3x5mm BOOK 3x8mm ANTI-ROLL BAR...
  • Page 17 MEDIUM OPTION #353354-H HARD INCLUDED #353354-G GRAPHITE OPTION #350908 ALU-SET OPTION #355215 CVD ADJUSTABLE DRIVE #350908 AXLE - HUDY SPRING XRAY XB8 ALU REAR UPRIGHTS - SET STEEL™ 353366 353394 353366 931320 XRAY BALL-BEARINGS 903308 #930816 8x16x5 GREASE STEEL OPTION 353394...
  • Page 18 4. REAR SUSPENSION 93mm To tighten the setscrew you can - SHORT CVD DRIVE SHAFT also use the HUDY 17mm Wheel ➌ 901504 Nut Tool #107570. SB M5x4 ➋ NOTE ORIENTATION 2.5x13mm Follow the TECH TIP on page 5 for drive shaft pin servicing. 13x19x4mm ➊...
  • Page 19 4. REAR SUSPENSION INITIAL SETTING 353354-H NOTE SHIM 3x9x7 ORIENTATION DETAIL 3x18mm 3x30mm 902318 SH M3x18 902330 SH M3x30 960030 INITIAL SETTING N M3 903312 SFH M3x12 902314 908318 SH M3x14 SCH M3x18 960030 N M3...
  • Page 20: Front Suspension

    5. FRONT SUSPENSION FRONT LOWER SUSP. ARMS #352120 SOFT OPTION #352120-M MEDIUM INCLUDED #352120-G GRAPHITE OPTION 903414 352314 352341 #902407 HEX SCREW SH M4x7 WITH HEX FROM BOTTOM (4) 901408 357212 353371 352314 902318 352340 903414 352492 352120-M 901303 352009 333450 901305 901312...
  • Page 21 =308 =306 Outer position = 1mm or 1° from center =310* The XRAY alu front lower suspension holders provide even greater range of SET-UP adjustment for the front suspension. Using different combinations of eccentric BOOK The tables below describe the amounts of kick-up, front track-width change depending on the combinations bushings, fine adjustment of front kick-up, roll center, and front track-width of eccentric bushings used with 0 and 1mm, 1°...
  • Page 22 5. FRONT SUSPENSION 1.5mm 901312 SB M3x12 Install the pivot balls with Professional Multi-Tool (HUDY #183011). STEP DETAIL ➍ 1.5~2.5mm 901303 SB M3x3 901305 SB M3x5 DETAIL 3x3mm ➍ 902318 ➋ SH M3x18 3x18mm 903308 ➌ SFH M3x8 ➊ 3x5mm 3x8mm DETAIL Step...
  • Page 23 #352135-M MEDIUM INCLUDED STEEL SILVER 940816 #352135-G GRAPHITE OPTION BAG 00.9 355251 901504 OFFSET WHEEL AXLES XRAY BALL-BEARINGS #355250 0mm OPTION #930816 8x16x5 GREASE STEEL OPTION FRONT ARM WINGS #355251 +1mm INCLUDED #940816 8x16x5 GREASE RUBBER INCLUDED #352194 LEXAN® OPTION...
  • Page 24 Tighten hex nuts using pivot ball starts to bind, then loosen slightly. Verify that HUDY tool #107581. the pivot balls move freely. #352194 Wings (NOT INCLUDED) XB8 LEXAN® FRONT UPPER ARM WINGS IFMAR LEGAL - SET 3x6mm 3x6mm 357256 SHIM 6x13x1 #352195 XB8 CARBON FIBER FRONT UPPER ARM WINGS - SET FRONT UPPER SUSP.
  • Page 25: Front & Rear Assembly

    COMPOSITE WING HOLDER BRACE WITH REAR BODY POST 960040 NUT M4 (10) 902308 HEX SCREW SH M3x8 (10) 351118 XB8 ALU CHASSIS - SWISS 7075 T6 (3MM) 902335 HEX SCREW SH M3x35 (10) #293084 PRECISION BALANCING CHASSIS WEIGHTS 10G (4) 903412...
  • Page 26 6. FRONT & REAR ASSEMBLY Push the top of the holder together with fingers to insert the brace with body post. NOTE 902335 960030 Overtightening will deform the composite wing holder, SH M3x35 N M3 and will not allow you to mount the wing as per the instructions on page 46 step 2.
  • Page 27 7. STEERING #352658 351301 BALL STUD 6.8mm WITH BACKSTOP L=6mm - M3x8 (2) 903312 903310 903312 903308 902312 351350 940610 352084 BAG 00.9 902310 352508 960030 908312 352516 960040 352576 903412 352314 352516 902310 908312 357222 352582 352381 352054 960030 352314 352666 352381...
  • Page 28 7. STEERING WIDER hole on TOP NOTE SPRING ORIENTATION 970121 DETAIL O 12.1x1.6 NARROWER hole on BOTTOM INITIAL PRELOAD SETTING DETAIL SET-UP BOOK SERVO SAVER HUDY Tool Allen 3.0mm 902308 SH M3x8 NOTE ORIENTATION For servicing use Bearing Oil (HUDY #106230) 903410 SFH M4x10 DETAIL...
  • Page 29 7. STEERING 902310 SH M3x10 All possible mounting alternatives of eccentric bushings. 903308 SFH M3x8 DETAIL 1º 0.5º NOTE ORIENTATION SET-UP INITIAL SETTING BOOK ROLL CENTER 3x12mm 3x12mm 3x10mm 3x12mm USE ONLY HOLE 902312 SH M3x12 903310 SFH M3x10 NOTE ORIENTATION 903412 903312...
  • Page 30 7. STEERING 1+1mm 908312 SCH M3x12 LOGO XRAY ORIENTATION FRONT INITIAL SETTING 1º 0.5º All possible mounting alternatives of eccentric bushings. UPPER CLIP Behind arm CASTER LOWER SHIM (Behind arm) UPPER CLIP (Behind arm) 21º 22.5º 24º SET-UP 25.5º BOOK LOWER SHIM 27º...
  • Page 31 8. CENTER DIFF & BRAKE #354113 #354057 SUPER-LIGHTWEIGHT VENTILATED BRAKE DISK - GRAPHITE CENTER DIFF MOUNTING PLATE PRECISION-GROUND (2) 902330 354073 901304 903308 354049 354073 354041 354131 354180 354041 354011 372176 354011 372176 354131 354180 354110 354110 355013 CENTER DIFF #354011-G 354011 CENTER DIFF MOUNTING PLATE SET...
  • Page 32 8. CENTER DIFF & BRAKE OVAL HOLE NOTE ORIENTATION ROUND HOLE NOTE ORIENTATION When using ultra-efficient brake pads you need to Fibre pads together remove from the servo holder on radio case. #354121 Temporarily insert BRAKE DISK STEEL BRAKE PAD - LASER CUT (4) between pads to set correct gap.
  • Page 33 8. CENTER DIFF & BRAKE 3x8mm NOTE ORIENTATION NOTE ORIENTATION 903308 OF ALL PARTS SFH M3x8 903412 SFH M4x12 #354011-G CENTER DIFF MOUNTING PLATE SET HIGHER - GRAPHITE 4x12mm NOTE ORIENTATION OF ALL PARTS Before inserting 3x30 long screws, loosen the four flat-head screws in the upper plate by 1/2 turn (CCW).
  • Page 34 911410 #351160 961032 CARBON FIBER CHASSIS SIDE GUARD L+R 902305 902316 961032 902305 358605 #358400 358941 961032 XRAY COMPLETE 4-SHOE CLUTCH SET 906206 351159 351159 4-SHOE CLUTCH SHOES GRIP 358685 #358457 ALU HARD (4) 1.00g OPTION HIGH 903310 #358456 ALU MED (4) 1.00g...
  • Page 35 9. FUEL TANK & ENGINE Threadlock on all screws 902305 SH M3x5 961032 S 3.2 #351159-S COMPOSITE CHASSIS SIDE GUARD L+R - SOFT Threadlock on all screws #351160 CARBON FIBER CHASSIS SIDE GUARD L+R All screws FX ENGINES (FX K303 #650105) (FX K303L #650106) (FX K502 #650304) 908312...
  • Page 36 #358718 ALU STAND SHF M4x10 (FX, NOVAROSSI, MAX, SIRIO) EXTREMELY IMPORTANT It is very important that your XB8 has properly-adjusted gear mesh. Adjust the gear mesh so there is adequate (or slightly larger) space between the spur gear and clutchbell teeth.
  • Page 37 9. FUEL TANK & ENGINE 3x16mm #358660 GRAPHITE 125CC FUEL TANK GUARD DETAIL 902316 SH M3x16 2.2x6mm Fuel Tank (NOT INCLUDED) 903310 SFH M3x10 906206 SFP 2.2x6 3x10mm DETAIL 901405 After running your engine, apply SB M4x5 (#106250 HUDY ENGINE AFTER RUN OIL). 903410 SFH M4x10 Cut away for...
  • Page 38 10. RADIO CASE Servo Screw (NOT INCLUDED) 902306 356200 (NOT INCLUDED) Personal transponder 902312 (NOT INCLUDED) 902314 902310 356003 352460 352460 352670 306310 902310 302611 960030 902312 356003 902314 356003 Receiver 961032 (NOT INCLUDED) 356003 Steering Servo (NOT INCLUDED) 961032 Receiver battery 902314 (NOT INCLUDED)
  • Page 39 10. RADIO CASE Servo screw step (NOT INCLUDED) Plug the connectors into the receiver in Step 2. 902314 SH M3x14 961032 S 3.2 NOTE NOTE ORIENTATION Use the shims only if the servo is too high and extends from the case. step 3x10mm Use foam to cushion the...
  • Page 40 #358164 FRONT SHOCK SHAFT 59mm (2) #358265 REAR SHOCK SHAFT 71.5mm (2) 358021 358316 SHOCK RUBBER MEMBRANE (4) #358107 XB8 FRONT SHOCK ABSORBERS ZERO REBOUND SET (2) 352460 #358084-S BRIBBED SOFT OPTION #358207 XB8 REAR SHOCK ABSORBERS ZERO REBOUND SET (2)
  • Page 41 1 1. SHOCK ABSORBERS DETAIL 358040 8 holes 8 holes Install the piston with Professional Multi S 2.5x6x0.5 ø1.2mm pistons ø1.3mm pistons Tool (HUDY #183011). (INITIAL SETTING) (INITIAL SETTING) 960026 SHORT rod LONG rod N M2.5 NOTE ORIENTATION 11.1 FRONT REAR SHOCK SHOCK...
  • Page 42 1 1. SHOCK ABSORBERS FRONT SHOCKS REAR SHOCKS DETAIL 970180 O 18x1.8 FRONT SHOCKS DETAIL REAR SHOCKS Professional Multi-Tool (HUDY #183011). 1 mm DETAIL DEFAULT SHOCK REBOUND SETTING 0% (LOW REBOUND) Follow the steps below to set the shock rebound to the default setting of 0%. FRONT (SHORT) SET-UP HALF TIGHTEN...
  • Page 43 1 1. SHOCK ABSORBERS FRONT shock PRELOAD DETAIL FRONT SHOCKS REAR SHOCKS SHORT front shock LONG rear shock REAR shock PRELOAD LONG spring IMPORTANT! SHORT spring SET-UP BOOK IMPORTANT! SPRING RATE IMPORTANT! Both rear shocks must be SHOCK PRELOAD Both front shocks must be FRONT &...
  • Page 44: Final Assembly

    HEX SCREW SH M3x8 (10) 356200 BRAKE/THROTTLE ARMS & SERVO ARMS - SET 902310 HEX SCREW SH M3x10 (10) 356402 XB8 BRAKE/THROTTLE SYSTEM - SET - V2 902318 HEX SCREW SH M3x18 (10) 356510 CLOSED BALL JOINT 3.9 (4) 902319...
  • Page 45 12. FINAL ASSEMBLY SHORTER M4 LONGER M3 FRONT SHOCKS (SHORT) NOTE ORIENTATION NUT M4 INITIAL SETTING 902318 902319 SH M3x18 SH M3x18 NUT M3 LEFT thread DETAIL 960030 STANDARD N M3 M3x18 screw INITIAL SETTING 960040 N M4 Shock cap NOTE ORIENTATION 3x18mm On the front right arm use the...
  • Page 46 HUDY 17mm Wheel Nut Tool #107570. HUDY REAR WING SHIM #293561 SILVER OPTION WHEEL NUTS #293561-O ORANGE OPTION #355261 OPEN RIBBED INCLUDED XRAY STARBURST WHEELS #293561-K BLACK OPTION #293560 COVERED RIBBED OPTION #359808 Pink OPTION #355265 COVERED OPTION #353561 SILVER...
  • Page 47 To reinforce the body or to fix broken body use #106281 HUDY BODY FIX. XRAY XB8 BODIES #359711 HIGH-SPEED OPTION SIDE VIEW #359712 HIGH-SPEED LIGHT. OPTION #359713 "EAZY"...
  • Page 48: Throttle Linkage Adjustment

    THROTTLE LINKAGE ADJUSTMENT NEUTRAL (IDLE) ADJUST INDIVIDUAL LINKAGES SEPARATELY TO AVOID INTERFERING WITH THE OPERATION OF THE OTHERS 0.5mm ~1mm ENGINE IDLING IDLING ADJUSTMENT SCREW. Use to adjust the idle setting of the • Turn on the transmitter and receiver and set the engine control servo trim to the neutral position. carburetor.
  • Page 49: Diff Maintenance

    DIFF MAINTENANCE REMOVING THE DIFFERENTIAL REMOVE ALL THE SCREWS - GEAR BOX COVER UPPER SCREWS - GEAR BOX COVER LOWER SCREWS - ANTI-ROLL BAR - SHOCK ABSORBERS...
  • Page 50 DIFF MAINTENANCE INSTALLING THE DIFFERENTIAL "CLICK" TIGHTEN ALL THE SCREWS - GEAR BOX COVER UPPER SCREWS - GEAR BOX COVER LOWER SCREWS - ANTI-ROLL BAR - SHOCK ABSORBERS...
  • Page 51 FRONT C-HUB SUSPENSION #350910 FRONT C-HUB SUSPENSION - SET 902318 352160 352583 901303 352150 903308 303128-K 352287 352625 902325 960030 352150 353170 960030 901408 352652 352180 903308 352277 352121-H 352378 902412 357230 352293 902305 352170 902316 352245 ECCENTRIC BUSHINGS #352170 0° - STEEL INCLUDED #352174 1°...
  • Page 52 FRONT C-HUB SUSPENSION NOTE ORIENTATION Graphite Grease (HUDY #106210) 13x19x4 941318 940816 BB 13x19x4 BB 8x16x5 To tighten the setscrew you can also use the HUDY 17mm Wheel 8x16x5 Nut Tool #107570. Use HUDY Ball-Bearing Grease for servicing: #106220 - Standard #106221 - Extra 901504 903308...
  • Page 53 FRONT C-HUB SUSPENSION DETAIL 901303 SB M3x3 17.5mm 909395 SS 3.5x45 908312 SCH M3x12 INITIAL SETTING 1º 0.5º STEP DETAIL ➍ DETAIL 1.5~2.5mm 901303 901305 SB M3x3 SB M3x5 3x3mm ➍ ➌ ➋ 3x18mm ➊ 902318 903308 SH M3x18 SFH M3x8 ➎...
  • Page 54 FRONT C-HUB SUSPENSION Install the pivot balls with Professional Multi-Tool (HUDY #183011). 24mm 24mm 303128-K SHIM 3x6x6 902318 SH M3x18 960030 N M3 INITIAL SETTING DETAIL INITIAL SETTING 902318 902319 SH M3x18 SH M3x18 LEFT thread STANDARD 960030 M3x18 screw N M3 INITIAL SETTING On the front right arm use the...
  • Page 55: Maintenance

    MAINTENANCE ENGINE OPERATION PREPARING TO OPERATE THE ENGINE • Never modify the engine or muffler. • For proper engine break-in, please refer to the manual that came with the engine. • Confirm the position of needle and idling before running. Be sure to run a new engine smoothly. •...
  • Page 56 XRAY XB8’23 SET-UP VER.01 ©XRAY UPPER ARM WING NONE LEXAN CARBON INCREASE DONFORCE WICKERBILL PLATE REDUCE DONFORCE Ø CUT OUT HOLES #355215 ADJ. DRIVE AXLE #355215 ADJ. DRIVE AXLE LENGTH LENGTH...
  • Page 57 SET -UP SHEET XRAY XB8E’23 SET-UP VER.01 ©XRAY C-HUB FRONT -10 -11 -12 -13 #107717 GAUGE #107717 GAUGE MEASURE UNDER WHEEL AXLE MEASURE UNDER WHEEL AXLE INCREASE DONFORCE WICKERBILL PLATE REDUCE DONFORCE Ø CUT OUT HOLES SHIMS PLACE ALWAYS UNDER...
  • Page 58 199310 108701 108702 108703 108202 108704 199911 108705 107855 108212 or 108760 109880 104005 108870 107030 107704 108190 293111 108801 107701 181110 106245 107717 293560 107865 or 107866 188981 181030 181040 181034 293540 107744 181050 107581 107742 112071 112571 164071 104140 #104005 HUDY Air Vac - Vacuum Pump - 1/8 Off-Road #107644 Limited Edition - Arm Reamer # 4.0mm...
  • Page 59 #112045 Limited Edition - Allen Wrench # 2.0mm #181040 HUDY Spring Steel Turnbuckle Wrench 4 mm #293540 Air Filter Foam & Oil (10) - XRAY XB8 Low Profile Style #112071 Power Tool Tip Allen 2.0 x 90 mm #181050 HUDY Spring Steel Turnbuckle Wrench 5 mm #293560 HUDY Alu Wheel Nut with Cover - Ribbed (2) #112545 Limited Edition - Allen Wrench # 2.5mm...
  • Page 60 RC AMERICA, 2030 Century Center Blvd #15, Irving, TX 75062, USA PHONE: 214-744-2400, FAX: 214-744-2401, xray@rcamerica.com /TeamXray /TeamXray /TeamXray /TeamXrayRC /XrayRacing /XrayRacing...

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