Fuel valve, Inline fuel filter – Eton VECTOR 250R User Manual
Page 12

Page 11
 
Tighten the cap snugly, being careful not to 
over tighten. Over tightening the cap can 
cause damage to the cap or seal. 
 
The fuel tank capacity is 12 liters, 3.17 gal, 
including a reserve of 2.5 liters, 0.66 gal. 
 
Use unleaded automobile gasoline with an 
octane level of 89 or higher. 
 
NEVER REFUEL YOUR ATV when the 
engine is HOT.
Wait 30 minutes after
turning off the unit before refueling. Spilling 
fuel on a HOT engine could cause a fire. 
Wipe up any fuel spills before re-starting. 
Fuel Valve
The unit is equipped with a three way fuel 
valve located on the left side of the unit just 
below the seat. 
The valve has three settings; “PRI”, “ON” and 
“RES”. With the valve in the “ON” or “RES” 
position fuel flow is controlled by a vacuum 
vale in the petcock. Fuel will begin flowing to 
the carburetor as soon as the engine is turned 
over. “ON” is the normal operation position of 
the fuel valve. When you have to switch to the 
“RES” position you must refuel the unit as 
soon as possible to prevent running out of 
fuel. 
ALWAYS CHECK YOUR Fuel level before you 
start riding your ATV
.
Remember: You can drive further in one hour on 
your ATV than you can walk in one day. 
 
The “PRI” position of the valve allows fuel to flow 
freely from the tank bypassing the vacuum valve. 
The “PRI” setting is primarily use when draining 
the fuel from the tank for long storage periods or 
during vehicle maintenance. It can also be used 
in an emergency if the vacuum valve fails to 
operate correctly allowing the unit to be taken to 
a place where the fuel valve can be serviced. 
DO NOT operate the vehicle with the valve in the 
“PRI” position for long periods of time. 
 
Inline Fuel Filter
Your ATV is equipped with an inline fuel filter to
prevent dirt and debris from entering the 
carburetor and engine. 
 
 
Check the filter for dirt or damage before each 
ride and at each refueling. Replace the filter if 
dirty or damaged. 
 
The filter should be replaced every 600 hours of 
operation and at the start of each season. 
 
To replace the filter, first turn the fuel valve to the 
“ON” or “RES” position. Then carefully unscrew 
the filter bowl from the bottom of the fuel vale by 
