KTM 450 Rally Factory Replica 2021 User Manual (English)

Questions and Answers:

J
James RiveraAug 18, 2025
What to do if my KTM 450 Rally Factory Replica 2021 Motorcycle engine doesn't turn over when I press the start button?
- W
  Wanda WiseAug 18, 2025
  If your KTM Motorcycle engine doesn't turn over when you press the start button, consider these potential causes: You may need to carry out the start procedure. The 12-V battery might be discharged, so charge it and check the charging voltage, open-circuit current, and the stator winding of the alternator. A blown main fuse could also be the issue, so replace it. Check the starter relay and the starter motor, as either could be defective.
S
samuel37Aug 20, 2025
What to do if my KTM 450 Rally Factory Replica 2021 engine turns over but won't start?
- A
  andersonpatrickAug 20, 2025
  If your KTM Motorcycle engine turns over but doesn't start, consider these potential causes: You may need to carry out the start procedure. Ensure the quick release coupling is joined. A blown fuse 8 could also be the issue, so replace the fuses of individual electrical power consumers. The idle speed might not be set correctly, so adjust it. Check the spark plug; if it's oily or wet, clean and dry it, or replace it if necessary. Finally, ensure the plug gap of the spark plug is properly adjusted to 0.9 mm (0.035 in).
B
Bethany JohnsonAug 23, 2025
Why my KTM 450 Rally Factory Replica 2021 engine does not speed up?
- M
  Mary StevensonAug 23, 2025
  If your KTM Motorcycle engine does not speed up, it could be due to an error in the electronic fuel injection. In this case, read out fault memory using the KTM diagnostics tool. Another potential cause is a faulty ignition system. Check the secondary winding of the ignition coil, the spark plug connector, and the stator winding of the alternator.
M
Melanie WangAug 26, 2025
What to do if my KTM 450 Rally Factory Replica 2021 engine overheats?
- S
  Samuel HouseAug 26, 2025
  If your KTM Motorcycle engine overheats, there could be several reasons. It could be due to too little coolant in the cooling system, so check for leaks and the coolant level. Insufficient airflow can also cause overheating, so switch off the engine when standing. Other potential causes include dirty radiator fins (clean them), foam formation in the cooling system (drain and refill the coolant), a bent radiator hose (replace it), a defective thermostat (check it), or a defect in the radiator fan system (check fuse 7 and the radiator fan).
R
robin15Aug 28, 2025
Why does my KTM 450 Rally Factory Replica 2021 engine have so little power?
- R
  ryankingAug 28, 2025
  If your KTM Motorcycle engine has too little power, several factors could be responsible. A very dirty air filter or fuel filter can restrict performance, so clean the air filter and air filter box, and change the fuel filter. Issues with the electronic fuel injection could also be the cause, so read out fault memory using the KTM diagnostics tool. Additionally, check the exhaust system for leaks or deformation, and replace the glass fiber yarn filling of the main silencer if needed. Finally, ensure the valve clearance is properly adjusted.
S
Shannon DuranAug 30, 2025
Why is my KTM 450 Rally Factory Replica 2021 Motorcycle consuming so much oil?
- F
  floydkyleAug 30, 2025
  High oil consumption in your KTM Motorcycle can stem from several issues. A bent engine vent hose can cause this, so route it without bends or replace it if necessary. Check the engine oil level, as too high a level can contribute to increased consumption. If the engine oil is too thin (low viscosity), change it along with the oil filter and clean the oil screens. Lastly, worn piston and cylinder components can also lead to high oil consumption, so measure the piston/cylinder mounting clearance.
A
Amy GarnerSep 2, 2025
Why is the 12-V battery on my KTM 450 Rally Factory Replica 2021 Motorcycle discharged?
- M
  Margaret OrtegaSep 2, 2025
  If the 12-V battery on your KTM Motorcycle is discharged, it could be because the alternator is not charging it properly. Check the charging voltage and the stator winding of the alternator. Another possibility is an unwanted electrical power consumer draining the battery, so check the open-circuit current.
K
kathy90Sep 4, 2025
What does it mean if the FI warning lamp (MIL) lights up or flashes on my KTM Motorcycle?
- C
  Casey FordSep 4, 2025
  If the FI warning lamp (MIL) lights up or flashes on your KTM Motorcycle, it indicates an error in the electronic fuel injection. Stop the motorcycle and identify the faulty component using the blink code. Also, check the cabling for damage and electrical plug-in connections for corrosion and damage, and read out fault memory using the KTM diagnostics tool.
C
Craig MezaSep 7, 2025
Why are the combination instrument values (time, stop watch, lap times) deleted on my KTM 450 Rally Factory Replica 2021?
- M
  Michael JuarezSep 7, 2025
  If the combination instrument values (time, stop watch, lap times) are deleted on your KTM Motorcycle, the combination instrument battery is likely empty. Change the combination instrument battery.
J
Jesse DuarteSep 9, 2025
Why aren't the turn signal and the combination instrument working on my KTM Motorcycle?
- A
  Amber ClarkSep 9, 2025
  If the turn signal and the combination instrument are not working on your KTM Motorcycle, fuse 1 is likely blown. Change the fuses of individual electrical power consumers.

KTM 450 Rally Factory Replica 2021 Specifications

General

Engine Type	Single cylinder, 4-stroke
Bore x Stroke	95 mm x 63.4 mm
Starter	Electric starter
Transmission	6-speed
Fuel System	Electronic Fuel Injection
Displacement	449.3 cc
Front Brake	Disc brake
Rear Brake	Disc brake
Dry Weight	139 kg
Seat Height	960 mm
Ground Clearance	310 mm
Frame	Chromium-Molybdenum steel frame