It should be very light yes. The EPS genrerates about 14kg of force when it is working correctly and while you steer. If you think it is hard then check for the symbol EPS if it lights or flashes on your dashboard (on the display botton right) If it doesnt, then your EPS should be OK, BUT if you still think it is hard to steer even though you have the EPS system installed on your ATV, I will recomend you to take it to your dealer to have it check :-)
BUT YES it should be very easy to steer if the EPS works correctly :-)
Good luck :-)
K.