mga

ok...thanks again nope....they wont fit

would the plastic fenders from a 1998 grizzly 600 fit on a 2000 big bear 400?

yea, i knew what you meant...thanks again!

2000 Big Bear 4x4 400. do the front and rear drive shafts have to be lubricated? they have boots on them and i was wondering if i had to pull the boots off and grease the "U" joints? These are the ones close to the engine front and rear.

as always, you were right...iot allowed me to start with it in gear as long as i had that handle squeezed.

ha....so, it doesn't light up the brake light, it's just a play on words. next time i'm on it, i'll have to check it out. thanks!!!!

on my left brake handle (for the rear brakes) there's two wires attached to it. What are these wires for? They can't be for the tail light, since it only has on filament I tried to trace them, but i got lost in the harness. I checked wiring schematics, but didn't see anything like that. I'll post a pic later.

no slipping going up a hill, only down a steep incline, but, once it's warmed up..it holds the gear. i played around with the adjustment, and i kept backing it off (decrease) and each time i turned it 1 turn, locked it down and drove it. I think i finally got it to shift real nice..it only takes a little force to get all my gears, and, reverse doesn't stick any more. it's never shifted so smoothly..my toes will thank me now. and, going down that steep hill out back waas a breeze...engine breaking held. Just to give you an idea how steep it is, you can't make a turn on it without the fear of flipping over..it's only straight up or down also, my road has some steep hills and it seemed to handle them (at slow speed) better...no slipping!! Your earlier post explaining the mechanics behind adjusting that screw was excellent. As i said before, most videos just say "turn left then tighten" without telling me why i'm turning that screw and what it's doing. i do appreciate the feedback !!!!!

what i found out was if i went down the steep hill while the engine was cold, it would slip into a free-wheel, so i just brake to a stop and it's back in gear, so to speak. But, when it's warmed up, it holds that first gear very securely. how exactly do you find that "sweet spot" on the clutch adjustment? Also, doesn't that effect how easy it should change gears? Like i said, once the atv is warmed up, it seems to be almost perfect. Does the oil play a part in all that?

update: it worked. apparently it didn't like being adjusted all the way counter-clockwise, so, i backed it off and it remains in 1st gear going down the hill. thanks again!!

i few years ago i bought SUN F for my Case garden tractor. They have been flawless and i have never had a problem with them. They have the same tread design as the front tires in those pics

excellent! thanks for the explanation. I wanted to know the mechanics behind the adjustment procedure, not the simple youtube "turn left" videos. I really appreciate you explaining that. It helps to know exactly what i'm adjusting. I've never had a problem with it going downhill until recently, most likely my doing. I was thinking i was adjusting the clutch, (watching those damn youtube videos) and i turned the screw all the way to the left until i felt it getting tight, then backed it out 1/2 turn. I'm going to put it back to where it was and it should be OK (hopefully.) The hill is steep and i depend on it remaining in 1st gear until i get down it. I will definitely do as you suggested to make sure it's working. again, thanks! apparently the issue i'm having is "pilot error".

I get it, turn counterclockwise will decrease, turn clockwise will increase. My question is what exactly am i increasing or decreasing? Is it clutch pressure? In many videos i've seen it's always "turn counterclockwise" until you feel resistance then back off. Why is it always to decrease? I'm just curious as to what exactly is going on when i turn that screw right or left. And, since there's no manual clutch to engage or disengage, what is going on inside? Reason why i'm asking is while going down a hill in 1st gear, it appears to pops out of gear, but no neutral light, and if i stop, it's in 1st gear still. BUT, (always a but) if the engine is warmed up, it stays in 1st gear. The hill is too steep to use any other gear, so 1st with the brakes is the only way to go down.

First, let me explain i only use this atv around the yard and to travel up and down the steep hill out back. I also pull logs out from the trees that i cut down. So, any top of the line tires aren't important for what i use it for. With that, these are the tires i put on. I mistakenly ordered the wrong treads for the front tires. When i asked the guy who mounted them if i should return them he said no because they have better pulling power and the steering will be much easier. He was right 100%. I noticed the rock buggies in his garage also had the same tread style as my front tires. If you saw the hill i have to drive up and down, you'd understand. Those tires made a world of difference when turning in a tight spot. so, kinda glad i mistakenly bought them. As to where i bought them.....lol....don't laugh...off Temu! But, they are warehoused here in the states.

all done! although he charged me $15 each wheel, which i gladly paid. Trying to stretch stiff rubber that feels like an inch thick is impossible. But, i handles much better with new tires. The shop i went to works on those rock climbing machines, but, it's like 1/2 a mile away. Guy told me if i ever need parts to come see him first and he'll see what he can do for me..

ha.....stupid me....got my new tires and i thought i could change them by hand....lol....that didn't happen. I'll bring them to a dealer. They aren't like lawn mower tires!

as always, excellent advice... thanks!!!! i should add you're right about it being unstable. When on a hill, i had a couple of times when it wanted to tip over! I had to dismount on the right side. I'll definitely go with the 25's.

My 2000 big bear 400 4x4 has 26x10x12 tires in front and 26x12x12 in the rears. Trying to find replacement tires those sizes are hard to find, or, when i do, they cost a lot more than i want to spend. But, there's a lot of 25" tires out there the same size, just 25" and not 26". If i got the 25" it should not make a difference....right?

glad you fixed it. my guess was the helmet he was wearing didn't allow him to see what he was shifting. 😀

found it. lol video.mp4

i guess you're right. I'll try that this winter when i have the time. I just thought swapping frames would be an easy way out, but, after getting the feed back, it would be difficult to get everything back to normal. I think i'll have to just bend the front end to the right. the left wheel is about an inch back from the right wheel. At this point i have nothing to lose trying to bend it back thanks again!!

only bought a new A arm...didn't help. I see a few big bears for parts...i was just wondering about the frames. i guess i could try to straighten it. thanks for all the feed back.

I have a Yamaha Big Bear 400 4x4 2000. I've posted on here about the frame being bent. Does anyone know what year frames are interchangeable? Also, would the frame from a 350 be the same as a 400? Would it matter if it was a 4x4 or 2x4? thanks for any help with this

seems the older big bears have the same problem: getting it back into neutral unless you rock it. I have to do that to mine once in a while, but not too often, it's still a PITA

I just saw a video on TikTok where some guy took the rear end off an ATV and bolted on a roto tiller in place of rear wheels. I wish i saved that video to post here....good thing it was 4 wheel drive...lol but, it seemed to work. I'm not sure how he made it bolt on to the drive....