1. DL manuals
  2. Ofna Racing
  3. Motorized Toy Car
  4. Ultra GTP
  5. Instruction Manual

Ofna Racing Ultra GTP Instruction Manual

Manual is about: Ready-to-Rip 1:8 Scale nitro Powered touring car

Summary of Ultra GTP

  • Page 1

    Rtr instruction manual safety precautions ! This radio control models is not a toy! - first time builders should seek the advice from people having building experience in order to assemble the model correctly and to produce it's performance to full extent. - assemble this kit and places out of child...

  • Page 2

    Required for operation things needed aa batteries ( 12 pcs ) glow fuel 20% tools not included in kit phillips type screw drivers ( l ) phillips type screw drivers ( s ) needle nose pliers cutter curved scissors knife instant cement cross wrench #17109 $3.95 glow plug & 17mm cross wrench #10801 $6.95...

  • Page 3: Read This Before Running

    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 ...

  • Page 4

    A b c checking engine throttle * insert into transmitter. 1. Insert aa batteries into transmitter (8 pcs). 2.Turn on transmitter. 3.Turn on receiver. 4.Center throttle trims as shown . A b c 1. Pull full throttle. 1. Push trigger to full brake position. 2. Adjust alum. Stopper to increase or decreas...

  • Page 5

    32237 rebuild kit 2. Pull down piston, attach pressure top and shock oil overflow with tissue paper. Shock assembly filling the shocks with oil assembly of the spring 1. Pull down piston and pour oil into shock cylinder. Remove air bubbles by slowly moving piston up and down. 3. Tighten up shock cap...

  • Page 6

    30121 3 x 5mm screw (small head) assembly of new “k” style differential case and gears 30751 diff. Case ( front/rear ) 30761 diff. Case (center ) 30751 diff. Case ( front/rear ) 30761 diff. Case (center ) 30779 p5 o-ring ( orange ) 30779 p5 o-ring ( orange ) 30779 0.5 x 26mm o-ring 30779 2 x 12.8mm ...

  • Page 7

    Assembly of the spur gear (solid center drive) assembly of the center plate 90026 5 x 5mm set screw 90026 5 x 5mm set screw 90026 5 x 5mm set screw 3 x 10mm tapping screw 30201 center diff. Mount (front) 30211 plastic bearing or 30212 flange ball bearing, option 30213 brake cam 30652 center plate 30...

  • Page 8

    Assembly of the gear box ( assemble two gear boxes for front and rear. ) 5 x 5mm set screw 30130 bevel gear * place set screw in d cut. 2 30630 6 x 13 x 5mm ball bearing * insert two ball bearings as shown. 36730 cap joint screw cement 1 30630 6 x 13 x 5mm ball bearing 30010 gear box 3 * make two ge...

  • Page 9

    3 x 20mm flat head tapping screw 30160 front lower arm holder 4 x 15mm tapping screw ( small head ) assembly of the right and left hand side are the same. Assembly of the right and left hand side are the same. 36901 ball type knuckle arm ( right and left ) r * use 5mm hex wrench. 36903 13.8mm steeri...

  • Page 10

    30151 lower arm shaft 3mm e-ring 3mm e-ring * insert drive shaft before assembly. * do not over tighten 5x5mm set screw. 5x5mm set screw 30152 upper arm shaft 90021 3mm e-ring 3x25mm cap screw 3mm flange nut 36905 caster angle adjuster * o change the caster angle . Use adjuster t caster angle will b...

  • Page 11

    4 x 10mm set screw 3mm e-ring 36030 rear lower arms * don't over tighten tapping screw. 30340 stabilizer bar 30351 rear lower arm holder 30350 rear wheel toe-in cams 30151 arm shaft (long) * a 4 x 10mm set screw is used to adjust the ride height. 3mm e-ring 34009 rear shock tower, gtp & wii assembly...

  • Page 12

    Assembly of the right and left hand side are the same. Assembly of the right and left hand side are the same. Assembly of the rear hub 36055 2.5 x 17mm pin 36054 wheel hub ( alum. ) 36053 8 x 16 x 5 ball bearings 36053 8 x 16 x 5 ball bearings 36082 rear wheel axle shaft 36081 rear hub 0 10 20 30 40...

  • Page 13

    3 x 15mm screw 0 10 20 30 40 50 mm 15mm 30402 3 x 30mm tie rod 30403 6mm ball joint 30401 6mm stabilizer ball end 30401 6mm stabilizer ball end 30340 6mm stabilizer ball end assembly of the rear upper arm rod assembly of the right and left hand side are the same. 3 x 15mm screw 3 x 3mm set screw 3 x...

  • Page 14

    Assembly of the servo saver 3 x 15mm screw 36742 servo saver bushing 36742 servo saver bushing 36750 servo saver connector 3mm nylon lock nut 3mm nylon lock nut 6 mm e-ring m3 nylon locknut 3 x 15mm screw (36740 servo saver plastic parts) 36743 6mm e-ring 36743 6mm e-ring 36743 6mm e-ring 36743 6mm ...

  • Page 15

    Assembly of the front plate and steering rod front steering rod ( right ) front steering rod ( left ) 3 x 15mm flat head screw assembly of the front plate onto the front gear box 3 x 20mm flat head screw 3mm nylon lock nut 3 x 10mm tapping screw 3 x 20mm flat head screw 3 x 20mm flat head screw r 0 ...

  • Page 16

    3 x 10mm flat head screw * a 3 x 10mm flat head screw are for servo post. 34040 chassis r 0 1 assembly of the front gear box onto chassis 3 x 25mm flat head tapping screw 3 x 25mm flat head tapping screw r 0 0 1 1 assembly of the front bumper 4 x 20mm flat head tapping screw 4 x 20mm flat head tappi...

  • Page 17

    Center gear assembly assembly of the center drive shaft r 0 1 4 x 16mm flat head tapping screw x4 4 x 16mm flat head tapping screw x4 34040 chassis * insert drive shaft into cap joint. 34050 center drive shaft (front) 4 x 16mm flat head tapping screw 34050 center drive shaft (rear) * insert drive sh...

  • Page 18

    0 1 3 x 10mm flat head screw ( 3 pcs) 34080 nylon stone guard (right-side) 34080 nylon stone guard (left-side) assembly of the stone guard 3 x 10mm flat head tapping screw.

  • Page 19

    3 x 8mm washer 3mm nylon locknut 3 x 5mm screw 3 x 20mm cap screw * place the clutch shoes with the clutch springs over the 3 pins of the flywheel. Using a screw driver as a lever, bend the small end of the clutch spring behind the clutch nut and press down to snap shoe in place. * fit the flywheel ...

  • Page 20

    Installation of the fuel tank and engine onto chassis note book paper *use note book paper to set gear backlash between spur gear and clutch bell gear. If the space is not correct the spur gear will be damaged. 3 x 20mm cap screw spur gear clutch bell * loose or tighten 3x20mm cap screw and 5x10mm h...

  • Page 21

    Assembly of the fuel tube * connect to fuel nipple. * connect to carburetor. * connect to fuel tank pressure nipple. * connect to press nipple. Fuel tube switch 10280 switch cover * use the screw provided with your witch. 3 x 10mm tapping screw 3 x 10mm tapping screw 3 x 10mm tapping screw 3 x 10mm ...

  • Page 22

    3 x 10mm screw assembly of the rear stiffener 34070 rear stiffener * use the screw provided with your radio. 30172 2mm rod * use the screw provided with your radio. Steering servo horn 2.6x10 tapping screw 2.6x10 tapping screw assembly of the servo horn linkage into servo * use the small strap to se...

  • Page 23

    Antenna post 3 x 10mm flat head screw ( 3 pcs) 34080 nylon stone guard (right-side) 34080 nylon stone guard (left-side) assembly of the stone guard assembly of the right and left hand side are the same. 30560 antenna tube.

  • Page 24

    Assembly of the throttle linkage system * take the plastic collar from brake system plastic parts. 3x3mm set screw * snap on. 3x3mm set screw 10300 alum.Stopper 3x3mm set screw plastic collar throttle spring 30172 2mm rod 10300 alum.Stopper 30530 throttle ball joint * align throttle servo same as sh...

  • Page 25

    30410 6mm ball end 30410 6mm ball end 0 10 20 30 40 50 mm 30411 6mm ball & socket 30402 3 x 30mm tie rod 30411 6mm ball & socket 20mm * align the steering servo as shown. Assembly of the front steering rod 3x10mm tapping screw 3x12mm screw 3x12mm screw 3 x 10mm screw 30660 front stiffener.

  • Page 26

    R 0 1 screw ceme nt 37380 6mm ball joint * insert shock ball end into arm. * insert shock ball end into arm. 3 x 15mm screw 3 x 15mm screw 3 x 15mm screw 3mm nylon locknut 3 x 8mm washer 3mm nylon lock nut 3 x 8mm washer 3 x 8mm washer 6mm ²y Ày assembly of the front and rear shocks onto the shock t...

  • Page 27

    4x15mm tapping screw (small head) 33011 front body post r 0 1 assembly of the front body post r 0 1 assembly of the front foam bumper r 33011 foam bumper cover 34091 foam bumper 31149 clips 31149 clips 33011 body supporter 33011 body post set.

  • Page 28

    Assembly of the rear body support 31149 clips 31149 clips 33011 body supporter 2x18mm screw 3mm nylon nut 3 x 15mm screw 3 x 15mm screw 2mmnut rear body post 33010 body mount assembly of the rear body mount * use this body post for rear..

  • Page 29

    Assembly of the tires and wheels instant glu e instant glu e * apply instant glue into the groove of the wheel. 86049 chrome wheel 86050 slick tires * the tires might be different as picture shown. * take off double side tape. 86059 inner sponge (small) 86059 inner sponge (large) * put the sponge on...

  • Page 31: Motor Or Starter Box.

    Starting of the engine without pull start how to start the engine: 1. Turn on transmitter and then receiver. 2. Fill fuel tank with fuel bottle. 3. Connect 1.2v glow plug starter. 4. Start engine with 12v starter or starter box ( note the direction of the starter.) 5. After the engine be started, re...

  • Page 32: Painting Tips

    Painting tips step 1 step 2 step 3 step 4 step 5 step 6 ster 7 ster 10 step 8 step 9 wash the inside of the body with detergent to remove any oil and dirt. Dry with lint free towel or a hair dryer. (keep your hand clean.) tools required are: curved scissor, hobby knife and a quality masking tape. Th...

  • Page 33

    Engine break-in and tunning (break-in the engine before driving the car!) optional ofna car stands tuning after break-in idle adjuster screw & barrel stop lean rich close master needle by turning clockwise until it stops. Then open needle by turning counterclockwise 3 turns (rich setting). When runn...

  • Page 34

    3 x 10mm flat head tapping screw 3 x 15mm flate head tapping screw 3 x 20mm flat head tapping screw 3 x 25mm flat head tapping screw 3 x 25mm tapping screw 3 x 20mm tapping screw 3 x 15mm tapping screw 3 x 5 mm flat head screw 3 x 10 mm flat head screw 3 x 15mm flat head screw 3 x 20mm flat head scr...

  • Page 36

    Use 2mm hex wrench to adjust 4x10mm set screw in front lower arm. Use 2mm hex wrench to adjust 4x10mm set screw in rear lower arm. (front) (rear) (rear) adjustment of the chassis clearance place the model car on flat surface. Use 2mm hex wrench to adjustment the chassis to it's minimum clearance. We...

  • Page 37

    35229 18mm e-ring 2nd spur gear (46t.45t.44t) 35226 2nd spur gear holder (ball bearing type) 35226 2nd spur gear holder (ball bearing type) 35222 center gear shaft 4x4mm set screw 35227 clutch cam 35227 clutch cam 35225 1st spur gear holder (one-way) 1st spur gear (49t.48t.47t) 35228 alum. Nut 35231...

  • Page 39

    35001 hn-293 2-speed kits, hodr, ultra's, blazer, gtp, rev 2 126.95 35002 hn-221 2-speed kit, inferno (not mp5/ 6) 126.95 35003 hn-221 2-speed kit, inferno (not mp5/ 6) 126.95 35220 hn-294g gears, 2-speed set, 13t/17t rev 2 19.95 35221 hn-220l base, clutch bell, screw-on base rev 2 28.95 34110 c-11 ...

  • Page 40: Instructions

    #35011 1/8 scale 2-speed transmission set (shoes type) #35011 1/8 scale 2-speed transmission set (shoes type) instructions * this professional two speed transmission is only for ultra gt series and ultra gtp series kits. 1st spur gear (49t.48t.47t) # 35225 1st spur gear holder (one-way bearing insta...

  • Page 41

    5 x 5mm set screw 49 #30170 brake joint 30170 brake joint #30200 center diff. Mount (rear) #30200 center diff. Mount (front) #30621 7 x 19x 5mm ball bearings #30621 7 x 19x 5mm ball bearings 5 x 5mm set screw screw cement screw cement *use the ball bearings that come with your car. 3 x 3mm set screw...

  • Page 42

    The #35011 2-speed transmission has a smoother gear change and is less aggressive on the 2nd gear . We offer many different pinion and spur gear combinations which can be used for different tracks. * adjust the engine before adjusting the clutch shift timing. Adjust the engine as per engine instruct...

  • Page 43

    * insert drive shaft before assembly. Assembly of the right and left hand side are the same. * a 4 x 10mm set screw is used to adjust the ride height. * insert into cap. Assembly of the anti-roll bar 31302 anti-roll bar mount (left) 31302 anti-roll bar mount (right) 31308 anti-roll bar 31308 anti-ro...

  • Page 44

    Assembly of the rear hub 36870 4mm set screw * make sure the pivot ball move smooth. 31304 rear hub 36082 rear wheel shaft 36053 8x16mm ball bearings 36053 8x16mm ball bearings 5mm hex wrench assembly of the right and left hand side are the same. Assembly of the right and left hand side are the same...

  • Page 45

    0 1 r r assembly of the front anti-roll bar 31302 anti-roll bar adjuster 31302 anti-roll bar adjuster 31302 anti-roll bar adjuster 31302 anti-roll bar adjuster 3x16mm screw 3x16mm screw ( front) ( rear) anti-roll strength became weaker anti-roll strength became stronger changing the angle of the ant...