Brand new chain and sprocket set for my 2002 Yamaha Warrior 350. Front sprocket is13 teeth and rear is 40 New 120 link blue o ring chain, cut down to 98 links which is factory.
Put a 13 or an 11 tooth on the front and a 40 or 38 tooth on the rear and she will be higher geared for more top end but you will lose low end a little.
It comes with a 13 and 40 . And it also depends on what terrain you ride . Trails , go with 15 and 48 that’ll add a little more torque and you’re not gonna lose too much top end and you won’t have to shift so much . 3 gear and you can steady rip through some trails . But if you wanna lose that torque then go 11 and 38