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13

2-Speed Adjustment

Although pre-set at the factory, the two-speed can be 

adjusted to shift at the point that suits you best. Under normal 

circumstances, it should shift well before the engine reaches 

maximum power. The actual distance traveled will vary with the 

gear ratio and tune of the engine. Tightening the adjustment 

screw (turning to the right/clockwise) will make the two-speed 

shift later. Loosening the adjustment screw (turning to the left/

counterclockwise) will make the two-speed shift later. Follow 

these simple instructions:

1.  Place the rear of the chassis on a block so the wheels can 

turn freely.

2.  Remove the plug at the top right hand side (looking from 

the back toward the front) of the transmission case. You 

will see the 2-Speed mechanism through the access hole 

(Photo 1).

3.  Roll the spur gear forward until you can see the hex of the 

black setscrew in the inner rotating hub as seen in photo 

2 and skip to Step #5. If the adjustment setscrew is not 

visible continue on with Step #4. 

4.  Hold the spur gear and turn the wheels forward slowly 

stopping when you can see the hex of the black setscrew.

5.  Insert a 5/64-inch hex wrench into the setscrew.

6.  Turn the setscrew ½ turn clockwise to make it shift later. 

or  

Turn the setscrew ½ turn counterclockwise to make it shift 

sooner. 

7.  Replace the rubber plug.

Summary of Contents for Speed NT

Page 1: ...1 Not responsible for errors All prices subject to change without notice Losi a Division of Horizon Hobby Inc Printed 06 09 16265...

Page 2: ...he Speed NT Introduction Thank you for choosing the Speed NT This is a highly developed RC model that features a sophisticated radio system and a nitro fuel powered engine It does require some mechani...

Page 3: ...ection This model is controlled by a radio signal that is subject to interference from sources outside your control Interference can cause temporary loss of control so it is advised to always keep a s...

Page 4: ...Nitrotane 20 Sport fuel LOSF0020 or LOSF0120 Other fuels may not support the engine warranty Fuel bottle LOSB5201 Glow Igniter LOSB5221 Rechargeable Receiver battery LOSB9951 Required Equipment You wi...

Page 5: ...uel Line Pressure Line Fuel Filler Exhaust Pipe Front Shock Tie Rod Steering Link Front Suspension Arm Front Camber Link Front Body Mount Steering Servo Receiver Cover Throttle Linkage Adjuster Air Fi...

Page 6: ...tle Brake Trigger Steering and Throttle Endpoint Adjustment Pots 4 Auxiliary Channel Bind LED Throttle Channel Steering Channel Binding Port Power On Off Switch Dual Rate Adjustment ST D R Antenna Ste...

Page 7: ...nt Pots allow you to adjust the maximum movement of the servos 11 Bottom Cover Removable for installing AA batteries 12 Binding LED Blinks when binding solid indicates binding complete Re Binding the...

Page 8: ...repeat steps 1 6 Should this not correct the problem please call Horizon Service Repair for further assistance 8 The Bind process is complete Your vehicle s radio system should be ready for use Using...

Page 9: ...s straight up at the back of the carburetor Both feature a slotted head that is used as a reference and receptacle for a flat blade screwdriver for adjustments The mixture is made richer by turning th...

Page 10: ...engine at idle pinch and hold the fuel line near the carburetor cutting off the flow of fuel and listen closely to the engine rpm speed If the low speed needle is set correctly the engine speed will...

Page 11: ...ells in the model If the model gets stuck do not pull the throttle as it may result in damage to the engine or clutch Leave plenty of room to stop the model It will take as much room to stop as it did...

Page 12: ...ap screw 7 Replace the engine installing the four 5 40 screws from beneath as well as the throttle link and pipe mount screw Adjusting the Gear Mesh As seen in the photo above the motor can be moved f...

Page 13: ...f the chassis on a block so the wheels can turn freely 2 Remove the plug at the top right hand side looking from the back toward the front of the transmission case You will see the 2 Speed mechanism t...

Page 14: ...or a toothbrush to remove dirt and dust Avoid using solvents if possible as this can actually wash the dirt into bearings and areas not accessible without disassembly causing additional wear We sugges...

Page 15: ...inward a hole will slow steering response and make the Speed NT smoother in bumps The standard position on the arm is outside which offers the best balance Running the inside shock location will give...

Page 16: ...handling on different surfaces The outer location also helps the Speed NT stay tighter in turns with a more precise steering feel Moving the link to the inner hole will make the steering react slightl...

Page 17: ...n exit Toe In Having the same definition as for the front end the toe in can be adjusted on the Speed NT with the rear hubs The stock toe in is 3 degrees of inboard per side and 0 degrees in the hub I...

Page 18: ...e the result of simple user errors or minor adjustments which are easily addressed If after reading below you cannot resolve your problem then please call Horizon Product Support at 1 877 504 0233 Rad...

Page 19: ...side 2 While holding the shock body with the shaft pointing up turn the plastic hex of the shock cartridge where the shaft enters the shock counter clockwise until it and the shock shaft can be remove...

Page 20: ...on of or to any part of the Product This warranty does not cover damage due to improper installation operation maintenance or attempted repair by anyone other than Horizon Return of any goods by Purch...

Page 21: ...paired or replaced free of charge Repair or replacement decisions are at the sole discretion of Horizon Hobby Non Warranty Repairs Should your repair not be covered by warranty the repair will be comp...

Page 22: ...op off your waste equipment for recycling please contact your local city office your household waste disposal service or where you purchased the product UK DE DK BG SE FI EE LV LT PL CZ SK HU RO SI AT...

Page 23: ...23 Operating and Tuning Notes...

Page 24: ...24 2009 Losi A division of Horizon Hobby Inc Not responsible for typographical errors All pricing subject to change without notice 800 0397...

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