Ofna Racing Ultra LX Pro Instructions Manual
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Ofna Racing Ultra LX Pro Instructions Manual

Ofna Racing Ultra LX Pro Instructions Manual

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1:8 SCALE GAS POWERED OFF-ROAD BUGGY
PLEASE READ INSTRUCTIONS CAREFULLY BEFORE ASSEMBLING
THIS MODEL.
KEEP THIS MANUAL FOR PARTS NUMBERS WHEN ORDERING .

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Summary of Contents for Ofna Racing Ultra LX Pro

  • Page 1 1:8 SCALE GAS POWERED OFF-ROAD BUGGY PLEASE READ INSTRUCTIONS CAREFULLY BEFORE ASSEMBLING THIS MODEL. KEEP THIS MANUAL FOR PARTS NUMBERS WHEN ORDERING .
  • Page 2 REQUIRED FOR OPERATION You will need to buy a few items to start the engine and run the car. THINGS NEEDED • Use 20% nitro CAR fuel. Do not use airplane or heli fuels, they will over heat engine. • Buy LONG glow plugs, like OFNA/PICCO Plug (#51007). Use plugs without idle bar.
  • Page 3 MUST READ THIS BEFORE RUNNING Running a nitro kit is fun and easy, but to make this a safe rusting. • Clean 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 ASSEMBLY OF THE THROTTLE LINKAGE SYSTEM #30800 #30530 Plastic Throttle Plastic Throttle * Snap On. Ball Joint 3X3mm 3X3mm 2mm Rod Set Screw Set Screw Throttle Spring #10300 3X3mm Set Screw Alum.Stopper Fuel Tube ( 6mm ) #10300 Alum.Stopper * Align throttle servo same Plastic Collar as shown.
  • Page 5 INSTALLATION OF THE TIRES AND WHEELS Front Knuckle Arm Assembly 15072 Nut, Blue Wheel Nut Notice direction of the tire. Note: Make sure wheel nuts are tight before running your car. Rear Hub Assembly Use a 17MM socket wrench to tighten these nuts. Spare nuts in blue color are OFNA #15072.

  • Page 6: Shock Assembly

    40059 SHOCK ASSEMBLY 49041 Oil Seal Spring Adjuster 40076 40060 40059 Front Shock 2.5mm 32235 14.7mm Body Nylon Nut Shock Piston..4 O-Ring 40090 Fit the O-ring into groove. 3.5mm O-Ring 32235 Make PAIR for Front Shock 40059 Piston 14.7mm O-Ring..4 40090 2.6 x 5mm 7mm R-Ring...
  • Page 7 ASSEMBLY OF THE FRONT AND REAR AND CENTER DIFFERENTIALS 30769 31324 - FRONT OR REAR DIFF UNIT Diff. 30769 30779 Bevel Gear Diff. Bevel Gear 31325 - CENTER DIFF UNIT 4 x 10mm ( Small ) ( Large ) 30773 Washer 30769 Diff.
  • Page 8 ASSEMBLY OF THE SPUR GEAR Note case direction for screw head. 31040 Spur Gear, Steel 35314 M3 Nylok Nut 30111 Spur Gear Mount Hardwares 30111 30111 3X10mm 3X10mm Screws Screws ASSEMBLY OF THE CENTER BRAKE CAP JOINT 30170 Joint Cap, Flat, Center Brake Disc.
  • Page 9 ASSEMBLY OF THE CENTER DIFF. MOUNT 30201 Center Diff. Mount 3x15mm Screws 30180 30201 Brake Pads Center Diff. Mount 31020 Brake Disc. Note: 30180 Adjust brake pads for a o.5mm gap. If gap is Brake Pads to big, the lever not move enough to apply braking.
  • Page 10 ASSEMBLY OF THE BEVEL GEAR 31010 Bevel Gear. Large, Harden 30121 Mounting Hardware 30120 insert tubes, 4 pcs. Bevel Gear. Large 30121 Mounting Hardware 90026 90026 5x5mm 5x5mm Hex Screw Hex Screw 30082 Joint Cap 90026 30620 5x5mm 7x10mm 30082 Hex Screw Ball Bearing Joint Cap...
  • Page 11 30010 Gear Box 30700 4 x 20mm Flat Head Tapping Screw 30010 Gear Box 3 x 20mm Flat Head Tapping Screw ASSEMBLY OF THE FRONT SHOCK TOWER 30160 Front Upper Arm Holder 36620 Front Shock Tower 4 x 16mm Flat Head Tapping Screw 30700 3 x 20mm...
  • Page 12 ASSEMBLY OF THE FRONT KNUCKLE ARM 90026 Assembly of the right and left hand side are the same. 90026 5x5mm 15100 5x5mm 30060 Hex Screw 6mm Axles Hex Screw Steering Knuckle Universals 30051 17mm Hex Hubs Blue 30070 Dog Bone Option Halfshafts 30071 - CVA Joints, 6mm Pair...
  • Page 13 ASSEMBLY OF THE FRONT ARMS INTO GEAR BOX Assembly of the right and left hand side are the same. 30102 Front Body Post * Cut the sharded area as shown. 3x8mm Tapping Screw 90021 Note 1 Degree E-Ring 0 Degree Angle of Lower Arm Pin 30151 90021...
  • Page 14 ASSEMBLY OF THE REAR UPPER RIGHT Assembly of the right and left hand side are the same. 30300 30290 Rear Wheel Shaft Rear 30051 Upper Right Wheel Hub Blue 30630 6x13mm Ball Bearing * Settled screw on 30630 90020 D cut. 6x13mm 2.5mm Ball Bearing...
  • Page 15 ASSEMBLY OF THE REAR SHOCK TOWER 36810 Rear Shock Tower 3 x 20mm Flat Head Screw * Insert stabilizer before assembly of the shock stay. 30340 Anti-roll Bar 30350 Rear Lower Arm Holder * Don't over tighten tapping screw. 4x16mm Flat Head Tapping Screw ASSEMBLY OF THE REAR LOWER ARMS...
  • Page 16 ASSEMBLY OF THE REAR UPPER ARM ROD 90018 Assembly of the right and left hand side 3 x 25mm are the same. 90018 Cap Screw 3 x 25mm Cap Screw 90019 36610 3 X 25mm Cap Screw Shock Support 35314 35314 M3 Nylon Lock Nut Nylon Lock Nut...
  • Page 17 ASSEMBLY OF THE WING SUPPORT 30271 30270 Wing Support Rear Wing Support Kit 30270 Wing Support 3 x25mm Tapping Screw 3 x 20mm Tapping screw 30271 Wing Support 3 x25mm 30270 Tapping Screw Plastic Post 3 x 25mm 3 x 25mm 30270 Tapping Screw Tapping Screw...
  • Page 18 ASSEMBLY OF THE SERVO SAVER 36740 Servo Saver Kit 36743 3 x 15mm E-Ring 36740 Screw Servo Saver 36742 Horn A Servo Saver Bushing 36746mm E-Ring 36742 Servo Saver 36740 Bushing Servo Saver Horn A 36740 Servo Saver Top Adapter 36741 Servo Saver 36740...
  • Page 19 ASSEMBLY OF THE FRONT PLATE AND 3 x 20mm STEERING ROD Flat Head Screw Front Steering Rod ( Left ) Front Steering Rod ( Right ) 3x12mm Screw 34049 Center Chassis Brace 3 x 15mm Screw ( Front ) 3 x 20mm Flat Head Screw 3 x 25mm Screw 3mm Flange Nut...
  • Page 20 ASSEMBLY OF THE GEAR BOX ONTO CHASSIS 34041 * Insert the front bumper before assembly. Chassis 5 Degree Kickup Hard Coated 30240 Front Bumper * A 3 x 10mm flat head screw are use for servo post. 3 x 10mm 4 x 16mm Flat Head Flat Head...
  • Page 21 ASSEMBLY OF THE STONE GUARD Assembly of the right and left hand side are the same. 34080 Nylon Stone Guard (Left-Side) 34080 Nylon Stone Guard (Left-Side) 3 x 10mm Flat Head Screw ( 3 Pcs)
  • Page 22 ASSEMBLY OF THE CLUTCH INTO ENGINE Notes: 3 x 5mm Screw Non-Pull Start Engines... • 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 against the engine bearing, then flywheel. You should be covering one or two 3 X 8mm thread of the engine shaft.
  • Page 23 INSTALLATION OF THE FUEL TANK AND ENGINE ONTO CHASSIS 30280 Fuel Tank 125cc 30287 Tank Mount Posts 10114 Flat Head Engine Mount Screws...
  • Page 24 10068 ASSEMBLY OF THE MANIFOLD AND Manifold Adapter MUFFLER ( Red Silicone ) 10060 Manifold * Read this page with very carefully. Option: 31991 Polished, Manifold 31992 Polished, Tuned Pipe 10120 Manifold Spring Nylon Lock Nut *Tighten the strap and cut off the excess. Option: 10078 Nylon Strap...
  • Page 25 ASSEMBLY OF THE SERVO AND RECEIVER * Use the screw provided 3 x 10mm with your witch. Tapping Screw Receiver Box 3 x 10mm Cover Tapping Screw Throttle Servo 10280 Note: Switch It is best to not use the Cover switch, switch can fail.
  • Page 26 ASSEMBLY OF THE BRAKE SYSTEM 30800 2x8mm Brake & Linkage Kit 2x4mm Screw 3x12mm Screw 2x6mm Screw Slider Washer Servo Mount 2x25mm 3X3mm Screw Set Screw Tie-Rod End 10768 Servo Horn 2x6mm 2mm Nut Washer 36140 Adjust 2x4mm Tie-Rod End Mount Adjust Nut Screw...
  • Page 27 ASSEMBLY OF THE THROTTLE LINKAGE SYSTEM (Part of 30800 linkage kit) 30530 Throttle Ball Joint * Snap On. 3X3mm 3X3mm 30172 Set Screw Set Screw 2mm Rod Throttle Spring 3X3mm 10300 Set Screw Alum.Stopper Fuel 10300 10300 Tube Alum.Stopper Alum.Stopper ( 6mm ) Plastic Collar * Align throttle servo same...
  • Page 28 ALIGN THROTTLE SERVO AND BRAKE SAME AS SHOWN ( Neutral Position ) Engine at idle ( Braking Position ) Brake is not on Brake is on Brake Adjust Nut ( Full Throttle Position ) Less Brake More Brake Engine at full throttle Loose Tighten * Tighten or loose the adjuster nut...
  • Page 29 ASSEMBLY OF THE FRONT AND REAR SHOCK ABSORBER Assembly of the right and left hand side are the same. 3 x 20mm Screw..4 * Take the plastic bushing from the shock plastic parts tree. Nylon Lock Nut Nylon Nut..4 32051 Plastic Bushing Nylon Nut...
  • 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 • Set the car on box or holder with wheels off the ground. •...
  • Page 32 APPENDIX PAGES...

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