There is a code on the frame rail under the seat,make a note of this and tell your Yamaha dealer he will then be able to asertain the year of your bike.Normally the 10th digit of the frame # will tell you also but this only works on 2 wheelers.
1998
1875
i have a yamaha big bear 350 ser no. jy44uhw05wao40667 what year model
1992, I used the link in the source
Its is a 1992 if the tenth number is correct
Many states require an ATV like the Yamaha Big Bear 350 4x4 to have a title registered in the name of the owner. If the VIN is worn away, the title is the next source for finding out what year it was manufactured.
Mukini
YFM 350SE Big Bear 4x49725x8x1225x10x12
gap for my 1995 big bear 350 is 0.6-0.7 mm or .024-.028 in.
4 gallons
What is the spark plug gap setting for a 1987 yamaha big bear