Yamaha Big Bear 350 ATV service

A friend of mine has a Yamaha Big Bear 350 from 1998 and it hasn’t been services since he got it….20 years ago! So I offered my assistance and made a video out of it.
In this video i
00:00 intro
01:54 change oil in the front differential
05:50 change oil in the rear axle
09:31 drain engine oil
14:40 change air filter
19:54 finding the neutral switch
21:00 changing oil filter
22:24 changing spark plug
23:59 filling engine oil
25:19 checking front lights
27:37 test drive
32:34 owner pickup and outro

[@kundrew1990]

i had a trouble with my neutral switch when I first got my big bear and it was the connections of two wires directly under the seat...replaced the connecters and has worked great ever since....Thank you for the video.

[@NilsKall]

Hi! Good tip! I don’t have the ATV at my house now but I’ll check it out when I visit the owner.

[@tucut8054]

the way to open the engine drain aluminum cap it to heat with a torch. the rubber seal will melt and then hammer as you did.

[@NilsKall]

Hi! Heat is good for getting things loose! I might test your method if I have to do this again. Thanks for your suggestion!

[@soulis1000]

Det är alltid en bra ide att öppna påfyllningshålet först på diffarna, för tömmer man ur diffen och sen av någon anledning inte lyckas få upp påfyllningen så blir det lite halvjobbigt att fylla på igen. :D

[@NilsKall]

Smart! I detta fall så kunde jag ha ATVn så länge som det behövdes så om det strulat så hade jag gott om tid att fixa det.

[@JourneymanRandy]

Nice work on that. I can't believe the engine still work after twenty years of no oil changes.

[@NilsKall]

Thank you! Yes quite incredible it survived! But it did sound a lot better after the oil change!

[@ArcticExploring]

To next time get a bigger oil container 😅
Good service you have done, and that old atv will hold for many years if the main oil will be changed more often.

[@NilsKall]

Good idea! I think the oil will be changed more often from now on, at least every 10 years or so.

[@bigjay6743]

That Wheeler might be old but you can tell it has very low hours.

[@NilsKall]

Yes I think you are right about that!

[@nathanreed9454]

Can someone please tell me how to get the seat off on a yamaha big bear 350 1997 is the year?

[@NilsKall]

If I remember correctly there is a latch on the left side of the seat, under the “Yamaha” text.

[@nathanreed9454]

@@NilsKall thanks

[@StephenMortimer]

know GIDEON SUNDBACK ??

[@NilsKall]

Nope but I had to check him out! Lots of good Swedish inventors in the past.

[@StephenMortimer]

@@NilsKall everytime you use your ZIPPER think SWEDE