Transmission oil, Tires and wheel inspection – Eton VECTOR 250R User Manual
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lightly apply pressure to the throttle until you 
feel the unit shift and the indicator light 
confirms the shift has been completed. 
 
If the brakes are not fully applied while 
shifting the transmission the engine will stop 
running. 
Transmission Oil
The Vector 250 requires SAE85W-140 gear 
oil to lubricate and cool the transmission and 
drive gears. Transmission oil level should be 
checked before each riding session and change 
every 3000Km/ 1800 Mi or at the beginning of 
each riding season which ever come first. 
 
The following steps should be followed when 
changing the transmission oil. 
1. Place a oil catch pan directly below
the transmission case.
2. Remove the transmission drain plug
located on the bottom of the 
transmission case on the underside of 
the unit. 
3. Remove the transmission filer plug
located on the upper right hand side 
of the transmission case above the 
transmission shifting linkage rod. 
4. Allow the oil to drain completely (15-
30min).
5. Reinstall the transmission drain plug
and torque to 7-10lb-ft.
6. Fill the transmission case with
SAE85W-140 automotive grade gear 
oil through the filler hole. 650cc / 22oz. 
7. Reinstall the transmission filler hole
plug and torque to 2-3Lb-ft.
8. Dispose of used oil at a proper
recycling station as required by law
Tires and Wheel inspection
It is important to inspect your tires and wheels 
for damage and wear before each riding session. 
Inspect each tire for cuts, tears and punctures. 
Inspect the wheel rim for dents and separation of 
the wheel from the tire bead. 
