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Ultra MBX R2 Instruction Manual

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Summary of Contents for Ultra MBX R2

  • Page 2: Required For Operation

    REQUIRED FOR OPERATION THINGS NEED BESIDES THE KIT 3.5 cc (21 Class) ENGINE REAR EXHAUST Glow Plug Heat with Battery & Charger Glow Fuel # 10227..$$19.95 (please note OFNA Glow Heats available) Bottle’s with spout # 10160 - large 500cc # 10161 - large 500 ccAuto Stop # 10162 - small 250cc # 10164 - CNC spout 500CC...
  • Page 3 READ THIS BEFORE RUNNING Running a nitro kit is fun and easy, but to make this a safe rusting. • Clear oil and dirt from chassis with a degreaser. and good experience you must observe a few rules. This kit is extremely fast, easily over 40MPH, and can seriously Precautions injure someone if you are not careful.

  • Page 4: Shock Assembly

    SHOCK ASSEMBLY 2.6mm Nut * Fit into groove. 2.6 x 5mm Oil Seal Washer Washer Washer Piston *Push onto shock cylinder. 32203 Shock Shaft Dust Pusher, Short * Assembly 4 pieces of the 32237 shock shaft . (Yellow Rubber) Rebuild Option: * Short shaft 32205...
  • Page 5 ASSEMBLY OF NEW “K” STYLE DIFFERENTIAL CASE AND GEARS 31324 - FRONT OR REAR DIFF UNIT 30769 30769 Diff. 31325 - CENTER DIFF UNIT Diff. Bevel Gear Bevel Gear ( Large ) 30779 ( Small ) 4 x 10mm 30773 Washer 30769 Diff.
  • Page 6 31040 30170 Brake Cap Joint 30620 7x19x5mm Ball Bearing 30170 Brake Cap Joint 30620 7x19x5mm 90026 Ball Bearing 5 x 5mm 90026 Set Screw Screw Cement 30211 30211 30213 Brake Cam, Optinal: 30212 5x8x2.5mm Flange Bearing 30171 Brake Lever Arm...
  • Page 7 30201 Center Diff. Mount, new 30201 Center Diff. Mount, new 30180 Brake Pads 30190 Brake Disk 30180 Brake Pads 30180 Brake Pads 30190 Brake Disk 30180 Brake Pads 30652 30171 Center Top Plate Brake Lever Arm (new)
  • Page 8 ASSEMBLY OF THE GEAR BOX ( Assemble two gear boxes for front and rear. ) * Place set screw in D cut. 30010 Gear Box 5 x 5mm Screw Set Screw Cement 30630 6 x 13 x 5mm Ball Bearing 30130 Bevel Gear 36730...
  • Page 9 ASSEMBLY OF THE FRONT ARM HOLDER 4x10mm The gear box after assembled. Tapping Screw 3 x 20mm Flat Head Tapping Screw 4 x 15mm Tapping Screw ( Small Head ) 4 x 15mm 4 x 10mm 30160 Tapping Screw Tapping Screw Front Lower Arm Holder ( Small Head )
  • Page 10 ASSEMBLY OF THE FRONT ARM ONTO GEAR BOX Assembly of the right and left hand side are the same. 3x25mm Cap Screw Flange Nut E-Ring 5 x 5mm Set Screw 4 x 10mm Tapping Screw 3 mm E-Ring 4 x 10mm Tapping Screw 30151 5x5mm...
  • Page 11 30330 Rear Tower 30340 Roll Bar Kit 30350 Rear Lower Arm Holder & Cam 36082 Rear Wheel Axle Shaft 36503 31304 8x16mm Rear Hub, Ball Bearing Pivot Type 31307 31303 11mm Rear Lower Arm Pivot Ball, Screw 31306 12mm Hex Nut 36503 8x16mm Ball Bearing...
  • Page 12 30151, Long, * Set triangle marks in the direction shown in Fig.1. 30320 36055 Drive Pin 30351 Degree Degree 36054 Multiple spacers are needed to Wheel Drive fit Kyosho and OFNA Nut, 8mm axles Fig.1 cars using the same arms. Assembly of the right and left hand side are the same.
  • Page 13 ASSEMBLY OF THE WING SUPPORT 30270 (30270 Wing Supporter) Wing Stay 30270 Wing Mount Kit ( Right ) 3 x25mm Flat Head Tapping Screw 3 x 20mm Flat Head 10290 Tapping screw Alum. Washer 30271 Wing Stay, Replacements 30270 Plastic Post 10290 Alum.
  • Page 14 ASSEMBLY OF THE SERVO SAVER 36743 3 x 15mm 30370 Screw E-Ring Servo Saver 36742 Horn A 30370 Servo Saver Servo Saver Bushing Plastic parts 36743 E-Ring 36742 Servo Saver 30370Servo Saver Bushing Horn B 30370 Servo Saver Top Adapter 36741 30370 Servo Saver...
  • Page 15 ASSEMBLY OF THE FRONT PLATE AND STEERING ROD 3 x 15mm Flat Head Screw Front Steering Rod ( Left ) Front Steering Rod ( Right ) 3 x 15mm Flat Head Screw ASSEMBLY OF THE FRONT PLATE ONTO THE FRONT GEAR BOX 3x10mm Tapping Screw 3 x 20mm...
  • Page 16 34040 Chassis, Ultra No Kick-up 30240 34110 34040 Chassis, Ultra No Kick-up 4 x 16mm Flat Head Tapping Screw 30700 Misc. Screws...
  • Page 17 ASSEMBLY OF THE GEAR BOX ONTO CHASSIS 4 x 16mm Flat Head Tapping Screw 3 x 25mm Flat Head Tapping Screw 34050 Center Drive Shaft (Rear) * Insert drive shaft into cap joint. 4 x 16mm Flat Head Tapping Screw 3 x 25mm 4 x 16mm Flat Head...
  • Page 18 ASSEMBLY OF THE CLUTCH INTO ENGINE Notes: Non-Pull Start Engines... 3 x 5mm Screw • Alum. Washer behind the flywheel is not needed when using Force engines or similar types. O.S. Engines will require washer spacer. • To check!..place the brass corn #10330 (big hole) against the engine bearing, then flywheel. You should be 3 X 8mm covering one or two thread of the engine shaft.
  • Page 19 INSTALLATION OF THE FUEL TANK AND ENGINE ONTO CHASSIS Note Book Paper Pressure Nipple 3 x 15mm Screw 30280 Fuel Nipple Fuel Tank *Use note book paper to set 3 x 15mm gear backlash between spur gear Screw and clutch bell gear. If the space is not correct the spur gear will be damaged.
  • Page 20 ASSEMBLY OF THE FUEL TUBE * Connect to fuel tank * Connect to pressure nipple. carburetor. Fuel Tube * Connect to fuel nipple. * Connect to press nipple. ASSEMBLY OF THE RADIO TRAY AND SERVO 3 x 10mm 3 x 10mm Tapping Screw Tapping Screw 3 x 10 mm...
  • Page 21 ASSEMBLY OF THE SERVO AND REAR STIFFENER 3 x 10mm Tapping Screw 3 x 10mm Screw 3 x 10mm 3 x 10mm Tapping Screw Tapping Screw 34070 Rear Stiffener Throttle Servo Steering Servo * Arrange the servo wire under the radio tray. Flange Nut 34031 Nylon Post...
  • Page 22 30560 Antenna Tube and Mount Top plate shown is old type! * Battery Case is provided by Radio It is Recommended to place battery case into a plastic bag before install under radio tray to prevent radio problems.
  • Page 23 30530 Throttle Ball Joint * Snap On. 3X3mm Set Screw 3X3mm 30172 Set Screw 2mm Rod Throttle Spring 3X3mm Set Screw #158 Alum.Stopper Fuel 10300 Tube 10300 Alum.Stopper ( 6mm ) Alum.Stopper Plastic Collar * Align throttle servo same as shown. * Take the plastic collar from brake system plastic parts.
  • Page 24 ASSEMBLY OF THE FRONT STEERING ROD 30410 6mm Ball End 30402 30411 3 X 30mm Tie Rod Ball & Socket 20mm 30411 Ball & Socket 3x12mm 30410 Screw 6mm Ball End 3x12mm * Align the steering servo as shown. Screw 3x10mm 30660 Tapping...
  • Page 25 30403 Ball, No Collar 30610 30600...
  • Page 26 ASSEMBLY OF THE TIRES, FOAM INSERTS AND WHEELS #86044 - Red #86091 #86045 - White Mini XX- Pin Tire #86046 - Lime #86047 - Yellow 17mm 5-Star Wheels Front Knuckle Arm Assembly #15071 17mm Wheel Nuts Always use tire foam donut when building tires.
  • Page 27 Soft Firm Soft Firm Firm Soft Firm Soft...
  • Page 28 STEP 1 STEP 2 STEP 3 STEP 4 STEP 5 STEP 6 STER 7 STEP 8 STEP 9 STER 10...
  • Page 29 1:1 SCREW SHEET 3 x 5mm Cap Screw 3 x 3mm Set Screw M3 Nut 3 x 5mm Set Screw 3 x 10mm Cap Screw M4 Nut 3 x 8mm Set Screw 3 x 12mm Cap Screw 3 x 10mm Set Screw M3 Nylon Locknut 3 x 15mm Cap Screw 3 x 15mm Set Screw...
  • Page 30 ENGINE BREAK-IN AND TUNNING (BREAK-IN THE ENGINE BEFORE DRIVING THE CAR!) • Choose a wide clear outdoor location with low dirt and dust. OPTIONAL OFNA CAR STANDS IN 4 COLORS • Set the car on box or holder with wheels off the ground. •...