Fuel system for traveling vehicle

A fuel system for a traveling vehicle having an engine mounted on a vehicle body and a rollover protection structure (ROPS) extending upward from the vehicle body, the fuel system comprising:

• a fuel tank accommodating an amount of fuel;
• a canister;
• an evaporating hose including a first evaporating hose portion and a second evaporating hose portion for sending fuel vapor generated inside the fuel tank to the canister;
• said first evaporating hose portion being connected to the fuel tank and extending upward from the fuel tank along a vertical post of the ROPS;
• said second evaporating hose portion extending downward along a vertical post of the ROPS and being connected to the canister;
• and
• a separator tank for separating fuel from fuel vapor;
• wherein the ROPS comprises a hollow member;
• and
• wherein the separator tank, a part of the first evaporating hose portion connected to the separator tank and a part of the second evaporating hose portion connected to the separator tank are disposed inside the ROPS.