Beta EVO 4T User Manual (English)

Questions and Answers:

A
aharrisAug 16, 2025
What to do if my Beta Motorcycle engine overheats?
- J
  James HarrisAug 16, 2025
  If your Beta Motorcycle engine overheats, with liquid or vapor coming from the radiator vent, several factors could be responsible. The radiator grill or the radiator itself (air side) might be blocked, so clean them. Ensure the cooling fan is working correctly, as the forced ventilation may be absent. Contact authorised BETAMOTOR customer service if the silencer is partly clogged or the carburation is too lean.
I
Isabel FigueroaAug 18, 2025
What to do if my Beta Motorcycle motor stops or sputters?
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  Anthony RodriguezAug 19, 2025
  If your Beta Motorcycle motor stops or sputters, it might be due to a lack of fuel. In this case, move the fuel cock to 'A' or refuel. Also, check that the sleeve between the carburetor and engine is intact, because a poor carburettor seal can cause the problem. Inspect the connector or ignition coil for looseness or oxidation; clean and treat with a specific spray if needed.
B
bwilliamsAug 22, 2025
How to fix a Beta EVO 4T engine that turns over but won't start?
- C
  Calvin HayesAug 22, 2025
  If your Beta Motorcycle's engine turns over but doesn't start, it could be due to several reasons. First, check if the fuel cock is in the 'C' position and turn it to the 'A' position. Another possible cause is a dirty spark plug, which you can clean or replace. If these steps don't resolve the issue, the carburettor jets might be dirty, or there could be a fault in the ignition system, requiring assistance from authorised BETAMOTOR customer service.
S
smithmaryAug 25, 2025
Why is my Beta EVO 4T engine power insufficient?
- E
  Evan MartinezAug 26, 2025
  If your Beta Motorcycle engine isn't delivering enough power, start by checking the tank vent for obstructions. Also, inspect the air filter and clean it if it's dirty. If these steps don't help, the fuel system might be dirty, or there could be a defective ignition system, in which case you should contact authorised BETAMOTOR customer service.
A
Amy BuckAug 28, 2025
What to do if Beta EVO 4T engine overheats and liquid flows out of the radiator?
- M
  Misty MyersAug 28, 2025
  If your Beta Motorcycle engine is overheating, with liquid or vapor coming from the radiator vent, several factors could be responsible. Begin by checking the radiator grill and the radiator itself for any blockages, and clean them if necessary. Ensure that the cooling fan is functioning correctly. Contact authorised BETAMOTOR customer service if the silencer is partly clogged or the carburation is too lean.
R
Rick RiveraAug 30, 2025
Why does my Beta EVO 4T motor stop or sputter?
- K
  kingfrankAug 30, 2025
  If your Beta Motorcycle motor stops or sputters, it could be due to a few reasons. First, ensure you have enough fuel and that the fuel cock is set to 'A'. Also, check the connector, and clean and treat with specific spray if it is loose or oxidized. Finally, make sure that the sleeve between carburetor and engine is intact.
J
Jennifer HarringtonSep 2, 2025
What causes poor front braking on a Beta Motorcycle?
- B
  Brian BennettSep 3, 2025
  If the front braking on your Beta Motorcycle is poor, it could be due to worn brake pads or air/humidity in the hydraulic circuit. In both cases, contact authorised BETAMOTOR customer service.
M
Michelle JohnsonSep 5, 2025
Why is the rear braking on my Beta EVO 4T Motorcycle poor?
- T
  Theresa MacdonaldSep 5, 2025
  If the rear braking on your Beta Motorcycle is poor, it might be caused by worn brake pads or air/humidity in the hydraulic circuit. For both these issues, contact authorised BETAMOTOR customer service.
R
Ricardo FranklinSep 8, 2025
How to start a Beta Motorcycle if the engine turns over but won't start?
- S
  Stephen MoralesSep 8, 2025
  If your Beta Motorcycle's engine turns over but doesn't start, it could be due to several reasons. First, check if the fuel cock is in the 'C' position and turn it to the 'A' position. Another possible cause is a dirty spark plug, which you can clean or replace. Also, the spark gap might be wrongly adjusted; in this case, restore the spark gap.

Beta EVO 4T Specifications

General

Cooling System	Liquid cooled
Transmission	6-speed
Ignition	Electronic
Clutch	Wet multi-disc
Frame	Aluminum
Front Tire	2.75-21
Rear Tire	4.00-18
Engine Type	Single cylinder, 4-stroke
Front Suspension	Hydraulic fork
Rear Suspension	Monoshock
Front Brake	Disc
Rear Brake	Disc
Fuel Capacity	2.5 L
Fuel System	Carburetor
Wheelbase	1, 320 mm