1986 Yamaha Moto 4 yfm200

[danpalms15]

Hi Everyone!

I'm changing my oil on my Moto 4 in a week or so and I was wondering what oil to use. I'm going to be using the quad in the summer where here in NY its about 75-80 degrees. My manual says for 40 degrees and up to use 20w 40, but I think that is to thick. Does anybody have any other suggestons? Also my rear tire size is 22x11x8 and I was thinking of puttin on some bigger tires? Does anyone know a bigger tire size that will still fit on my stock rim? I've looked around and could only find 22x11x8. Thanks Alot for your help in advance!

[WIkid500]

Thats the same engine as my ytm-200 I run 10w30 spectro oil. It's good *Edited**Edited**Edited**Edited* and comes out almost clean after a year of abuse. Mine runes anywhere from -30 to 90 above outside air temp.