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Summary of Contents for Xray XB8R
- Page 1 INSTRUCTION MANUAL INSTRUCTION MANUAL INSTRUCTION MANUAL INSTRUCTION MANUAL INSTRUCTION MANUAL INSTRUCTION MANUAL INSTRUCTION MANUAL INSTRUCTION MANUAL INSTRUCTION MANUAL...
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Page 2: Table Of Contents
On high-speed flat tracks or bumpy tracks, whether driving nitro off-road car that is the epitome of high-performance and fine distinctive for fun or racing to win, the XB8R delivers outstanding performance, speed, design. Your XB8R offers highest performance, responsive handling, and and precision handling. -
Page 3: Safety Precautions
16 and older. This is not a toy, it is a precision racing model. XRAY guarantees this model kit to be free from defects in both material and workmanship. The total monetary value under warranty will in no case exceed the cost of the original kit purchased. -
Page 4: Exploded Views
XB8R NOTICE Please note that several parts which are included in the kit may not be available as a spare part, but may be available as a direct replacement part. Any such parts are denoted as „OPTION“ in exploded views. -
Page 5: Troubleshooting Guide
TROUBLESHOOTING GUIDE PROBLEM CAUSE SOLUTION Engine does not • Fuel tank is empty or carburetor is not • Fill fuel tank with fuel and prime start primed • Replace glowplug or recharge/replace glowdriver • Bad glowplug or dead glowdriver battery battery •... -
Page 6: Front & Rear Differential
1. FRONT & REAR DIFFERENTIAL 355060 940816 355020 971060 964060 355090 980212 355030 355080 355030 964030 355040 903312 BAGS 35 5020 DIFFERENTIAL CASE 90 3312 HEX SCREW SFH M3x12 (10) 35 5030 STEEL DIFF BEVEL & SATELLITE GEARS (2+4) 94 0816 HIGH-SPEED BALL-BEARING 8x16x5 BLUE COVERED (2) 35 5040 FRONT/REAR DIFF LARGE BEVEL GEAR 40T - HUDY STEEL... -
Page 7: Front & Rear Differential
FRONT & REAR DIFFERENTIAL 940816 BB 8x16x5 Use tweezers to insert pin 964060 S 6x18x0.2 971060 O 6x1.5 980210 P 2x11.6 903312 SFH M3x12 964030 S 3.5x12x0.2 Front diff: Rear diff: Finish tightening in this order Tight the screws equally THICK silicone oil THIN silicone oil “5.000”~”10.000”... -
Page 8: Center Differential
CENTER DIFFERENTIAL 355070 940816 355020 971060 355090 964060 980212 355030 355080 355030 964030 355050 - OPTION 355051 - OPTION 355052 - OPTION 903312 35 5020 DIFFERENTIAL CASE 90 3312 HEX SCREW SFH M3x12 (10) 35 5030 STEEL DIFF BEVEL & SATELLITE GEARS (2+4) 94 0816 HIGH-SPEED BALL-BEARING 8x16x5 BLUE COVERED (2) 35 5050... - Page 9 CENTER DIFFERENTIAL 940816 BB 8x16x5 Use tweezers to insert pin 964060 S 6x18x0.2 971060 O 6x1.5 980212 P 2x11.6 903312 SFH M3x12 964030 S 3.5x12x0.2 Tight the screws equally Finish tightening in this order Center diff: THICK silicone oil “5.000”~”10.000” Fill 80% full...
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Page 10: Front & Rear Transmission
2. FRONT TRANSMISSION 355409 901504 940816 352000 355110 355000 352000 981266 902310 355419 355239 901404 351300 355429 352090 OPTION 902310 35 1300 BODY POSTS 90 1404 HEX SCREW SB M4x4 (10) 35 2000 DIFF BULKHEAD BLOCK SET FRONT 90 1504 HEX SCREW SB M5x4 (10) 35 2090 ALU FRONT SHOCK TOWER-CNC MACHINED 7075 T6 (4MM)-OPTION... -
Page 11: Rear Transmission
REAR TRANSMISSION 355609 901504 940816 352001 355110 355000 352001 981266 902310 355419 355239 351300 901404 353090 355629 OPTION 902310 35 1300 BODY POSTS 90 1404 HEX SCREW SB M4x4 (10) 35 2001 DIFF BULKHEAD BLOCK SET REAR 90 1504 HEX SCREW SB M5x4 (10) 35 3090 ALU REAR SHOCK TOWER - CNC MACHINED 7075 T6 (4MM)- OPTION 90 2310... -
Page 12: Rear Suspension
3. REAR SUSPENSION 903308 352001 909395 965032 352309 901305 353428 353121 901303 901408 352450 901312 352309 352460 357211 352470 909372 353111 965032 902318 35 2001 DIFF BULKHEAD BLOCK SET REAR 90 1303 HEX SCREW SB M3x3 (10) 35 2309 SET OF COMPOSITE LOWER SUSP . HOLDERS 90 1305 HEX SCREW SB M3x5 (10) 35 2450... - Page 13 4. REAR SUSPENSION 353520 353559 353360 905314 902320 960030 353160 902316 353130 960030 352630 353150 353170 902316 902322 353350 357330 981266 355209 980317 902305 355219 940816 960030 901504 353350 355250 355239 OPTION 901404 355429 35 2630 ADJ. TURNBUCKLE M5 L/R 50 MM - SPRING STEEL (2) 35 7330 REAR LOWER OUTER PIVOT PIN (2) 35 3130...
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Page 14: Rear Suspension
REAR SUSPENSION 902305 SH M3x5 Shims for wheel base adjustment Note location of notch Note location of notch 902316 SH M3x16 3x16 3x16 3x22 3x22 Use tools to tighten as shown INITIAL POSITIONS 902322 Left thread Right thread SH M3x22 13 mm 960030 N M3... -
Page 15: Front Suspension
5. FRONT SUSPENSION 909372 965032 352309 901408 902318 352111 352111 357211 352309 909395 901303 965032 352424 352470 352450 352000 901312 901305 903308 352460 35 2000 DIFF BULKHEAD BLOCK SET FRONT 90 1303 HEX SCREW SB M3x3 (10) 35 2111 FRONT LOWER ARM - SOFT 90 1305 HEX SCREW SB M3x5 (10) 35 2309... -
Page 16: Front Suspension
6. FRONT SUSPENSION 903312 352330 981266 352130 352260 355219 357220 352220 352380 352315 352620 352150 355239 901404 902412 353170 355429 352179 960030 902322 902305 352210 357230 902416 352297 352179 980317 355209 940816 352250 901504 352297 355250 OPTION 35 2130 FRONT UPPER ARM 35 5429 UNIVERSAL CVD DRIVE SHAFT 35 5250... -
Page 17: Front Suspension
FRONT SUSPENSION 902305 SH M3x5 DISASSEMBLY DETAIL ASSEMBLY Remove 3x5 screw holding composite bushing in arm. Push out the pivot pin from the rear to remove the Press pivot ball into arm composite bushing. until it snaps into place DOT IN FRONT Notch goes to outside DOT IN FRONT 9 mm... -
Page 18: Front & Rear Assembly
FRONT & REAR ASSEMBLY 960030 902312 353089 960030 903412 351200 903312 903412 351100 35 1200 FRONT & REAR BUMPER 90 3412 HEX SCREW SFH M4x12 (10) 35 3089 COMPOSITE REAR BRACE 96 0030 NUT M3 (10) 90 2312 HEX SCREW SH M3x12 (10) 35 1100 ALU CHASSIS - CNC MACHINED 7075 T6 (3MM) 90 3312... -
Page 19: Front & Rear Assembly
FRONT & REAR ASSEMBLY 902312 SH M3x12 SH M3x12 903312 SFH M3x12 960030 N M3 SFH M3x12 903412 SFH M4x12 DETAIL... -
Page 20: Steering
7. STEERING 903312 903310 903306 351340 OPTION 352089 960030 903312 940610 960030 903310 352500 960030 352570 OPTION 352510 352610 352660 352650 352500 352510 960030 352500 971120 940610 903410 35 1340 GRAPHITE UPPER PLATE - OPTION 90 3306 HEX SCREW SFH M3x6 (10) 35 2089 COMPOSITE FRONT BRACE 90 3310... -
Page 21: Steering
STEERING 903310 SFH M3x10 940610 BB 6x10x3 3x10 3x10 903306 3x12 SFH M3x6 FASTEN TIGHTLY 903310 SFH M3x10 903312 SFH M3x12 903410 SFH M4x10 960030 4x10 N M3 4x10 3x12 960030 N M3 25 mm Tighten all steering fasteners securely... -
Page 22: Center Diff & Brake
8. CENTER DIFF & BRAKE 902330 358930 354040 903308 354059 902308 901304 354040 354040 354120 354130 354010 902316 355010 354110 354010 903412 903308 35 4010 CENTER DIFF MOUNTING PLATE - SET 90 1304 HEX SCREW SB M3x4 (10) 35 4040 BRAKE CAM POST &... -
Page 23: Center Diff & Brake
CENTER DIFF & BRAKE SFH M3x8 901304 SB M3x4 2 mm 902308 0 mm SH M3x8 SH M3x8 903308 SFH M3x8 LONG SHORT Before inserting 3x30 long screws, loosen the four flat-head screw in the upper graphite plate by 1/2 turn. Tighten all screws after assembly. -
Page 24: Fuel Tank & Engine
9. FUEL TANK & ENGINE Manifold not included 908312 Pipe not included 964070 Engine not included 964071 Screw not included 964072 358540 358531 OPTION 358550 358580 OPTION 358710 358581 OPTION OPTION 961025 358513 OPTION 358514 OPTION 960030 358560 358515 OPTION 902316 358720 358600... -
Page 25: Fuel Tank & Engine
Adjust engine position to achieve proper gear mesh 3x16 Extremely Important !!! It is very important to ensure that your XB8R has properly adjusted gear mesh. Adjust the gear mesh so 902316 there is slightly larger play between the spur gear and SH M3x16 clutch bell teeth. -
Page 26: Radio Case
BRAKE/THROTTLE ARMS & STEERING SERVO ARMS - SET 96 0030 NUT M3 (10) 35 6600 TRANSPONDER MOUNT 38 9111 XRAY BATTERY 5-CELL -1200mAh NiMH- 6.0V PRO - OPTION 30 6310 ANTENNA TUBE (2) Ball joints must be 90° to each other ~ 16 mm 902312... -
Page 27: Radio Case
RADIO CASE KO PROPO 3x10 Route steering servo lead 902308 behind lead clamp SH M3x8 FUTABA 902310 NOTE ORIENTATION SH M3x10 SH 3x8 SANWA SFH 3x8 3x10 NOTE ORIENTATION 903308 Use appropriate servo stands SFH M3x8 SFH 3x8 Servo screw Servo stands Route receiver wire through mounting hole in top plate and... -
Page 28: Shock Absorbers
358094 OPTION 358095 OPTION 358096 OPTION 35 2460 PIVOT BALL 5.8 (10) 35 8096 XRAY SPRING-SET HARD DARK-BLUE (2+2) - OPTION BAGS 35 8010 COMPOSITE FRAME SHOCK PARTS 35 8120 ALU FRONT SHOCK BODY - HARD COATED (2) 35 8011... -
Page 29: Shock Absorbers
SHOCK ABSORBERS 1. Install the pivot ball into the composite pivot mount. 2. Extend the shock rod so the piston is near the bottom of the shock body. Shock Silicone Oil “350” 3. Hold shock upright and slightly overfill the shock body with shock oil. 4. -
Page 30: Final Assembly
12. FINAL ASSEMBLY 901303 961022 356400 903312 903314 358950 356400 356510 902310 353510 from servo 356200 356400 353510 356400 960030 356400 358045 901303 356400 358901 356400 960030 356400 358200 902322 902318 358930 358810 359800 358820 902322 not included 358840 358820 not included 902308 960030... -
Page 31: Final Assembly
FINAL ASSEMBLY REAR SUSPENSION 3x22 902318 SH M3x18 902322 SH M3x22 REAR SHOCKS (LONG) INITIAL POSITIONS 960030 N M3 3x18 SILICONE TUBING 901303 SB M3x3 10mm 2xCUT Use servo horn depending on your servo 902310 SH M3x10 K - KO Propo Thread brake rods into plastic F - Futaba pivots until flush with outer end... - Page 32 FINAL ASSEMBLY Cut the silicone tube depending on engine and muffler. Use the plastic clips to hold the tubes together The fuel filter has a small hole that fits into notch on the composite holder to prevent the filter from turning freely Use the fuel tubing holders where neccessary...
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Page 33: Throttle Linkage Adjustment
THROTTLE LINKAGE ADJUSTMENT NEUTRAL (IDLE) ADJUST INDIVIDUAL LINKAGES SEPARATELY TO AVOID INTERFERING WITH THE OPERATION OF THE OTHERS 0.5mm Engine idling ~ 1mm Idling Adjustment Screw * Turn on the transmitter and receiver and set the throttle servo trim to the neutral position. Use to adjust the idle setting of the carburetor. -
Page 34: Body Preparation
BODY PREPARATION HOLE FOR BODY POSTS ø 9mm • Before cutting and making holes on the body, put the unpainted body on the chassis to confirm the • Apply paint masks as appropriate. • Paint the body using paints formulated for polycarbonate bodies. mounting position and location for holes and cutouts. -
Page 35: Engine Operation
ENGINE OPERATION Preparing to operate the engine • Never modify the engine or muffler. • Confirm the position of needle and idling before running. Be sure to run a new engine smoothly. • Make sure the air filter is clean and oiled. •... -
Page 36: Set-Up
XB8R was built on the XB8 platfrom and features plenty of the smart and quick set-up adjustments. Some of the adjustments, such as toe-in, caster, anti-dive or anti-squat were limited to the range of the most frequently used settings, to keep the setting of the XB8R as easy as possible. However, anytime required, you can purchase the optional parts which will allow you to enjoy the full range of adjustments. - Page 37 Straight · equal damping all the time (compressing and rebounding) Use only the genuine premium quality Part Viscosity Part Viscosity Xray silicone shock oils. 359515 “150” 359545 “450” The shock oils are availabe in 50ml size in these 359520 “200”...
- Page 38 Shock Springs Available XRAY Shock Springs You can use shock springs of different rates to alter performance. #35 8094 XRAY Spring-Set SOFT White (2+2) #35 8095 XRAY Spring-Set MEDIUM Light-Blue (2+2) Shock spring Characteristics #35 8096 XRAY Spring-Set HARD Dark-Bue (2+2) Softer ·...
- Page 39 XB8R SET-UP Servo Saver Preload Adjust the preload of the central servo saver by adjusting the tension on the spring with the threaded collar. Servo saver spring preload Characteristics Softer · less steering · better suited to standard servos Stiffer ·...
- Page 40 H CASTER The XB8R has preset 15° caster of the front C-hub. Adjust the front caster angle by changing the optional caster eccentric bushings (#352171, #352172) in the front lower arms (in front of the C-hub). After you set the caster angle using the eccentric bushings, you must adjust the front upper arm position. The final caster also depends on the kick-up setting.
- Page 41 XB8R SET-UP H TOE You can adjust different types of toe angle on the XB8R: front inboard toe, front toe, and rear toe-in. Front Inboard Toe - Adjustable only optional To adjust the front inboard toe, you need to use the I.S.S. alu suspension holders #352310 and eccentric bushings #352315.
- Page 42 XB8R SET-UP H REAR ANTI-SQUAT Adjust rear anti-squat of the rear lower arms by changing the plate at the front of the rear bulkhead. = 1° = 2° H REAR ANTI-SQUAT - I.S.S SETTING Using the optional #353310 and set of eccentric bushings #352315 you can easily adjust front kick-up of the front lower arms by exchanging the eccentric bushings in the plate at the rear of the front bulkhead.
- Page 43 Use only the genuine premium quality Changing the oil in the front differential affects overall steering response. Xray silicone diff oils. The differential Changing the oil in the center differential affects the front-to-rear drive. oils are availabe in 50ml size in these Changing the oil in the rear differential affects cornering traction and overall steering.
- Page 44 XRAY MODEL RACING CARS XRAY MODEL RACING CARS XRAY MODEL RACING CARS P .O.BOX 103 P .O.BOX 103 P .O.BOX 103 911 50 TREN 911 50 TRENČÍ ČÍN 911 50 TRENČÍN SLOVAKIA, EUROPE SLOVAKIA, EUROPE SLOVAKIA, EUROPE PHONE: ++421 905 402724...
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