when my 92 fj1200 is on the centre stand both wheels are still touching the ground.its this right? i thought the rear wheel should be off the ground.also it does not sit level[bike rocks from side to side].i took off centre stand and it looks straight[not bent].also when i put the bike on the side stand it seems to lean over too far.do these bikes lean quite a bit on this stand?i have only just took the bike out for my first run today.it had been on a paddock stand while i was doing it up.
Stock FJ rear wheel is off the ground about an inch to an inch and a half on the center stand. Sounds like somebody has modified the suspension.
Kurt
My '92 rear tire is off the floor by exactly 1" when on the center stand. I'm about as stock as you get, with a little bit of rear tire wear, level garage floor and the front wheel straight.
As has been mentioned...sounds like you have suspension mods or possibly taller tires?
I agree with the previous posts, Sounds like your rear suspension has been modified. After market shock?, Shortened dog bones?, or both.
As for the un-even stance while on the center stand. I can think of 2 things.
1. The center stand bolts are loose, or one is missing.
2. The bolt holes in the center stand or the frame mounting holes are elongated.
Fred
the shock looks stock but rusted pretty bad.tyres are front 120/70 zr m/c 58w. rear 160/80 b16 m/c 81h.im trying to put up pics but cant work out how to
Quote from: skik on June 28, 2014, 02:56:05 PM
the shock looks stock but rusted pretty bad.tyres are front 120/70 zr m/c 58w. rear 160/80 b16 m/c 81h.im trying to put up pics but cant work out how to
http://www.fjowners.com/index.php?topic=341.0 (http://www.fjowners.com/index.php?topic=341.0)
Quote from: not a lib on June 28, 2014, 02:57:27 PM
Quote from: skik on June 28, 2014, 02:56:05 PM
the shock looks stock but rusted pretty bad.tyres are front 120/70 zr m/c 58w. rear 160/80 b16 m/c 81h.im trying to put up pics but cant work out how to
http://www.fjowners.com/index.php?topic=341.0 (http://www.fjowners.com/index.php?topic=341.0)
made a balls up.posted pics in that link you give me and i cant delete it.i copied 3 codes and pasted but i only see one pic.anyway its late here.i will take more pics tomorrow and try posting them here then
Quote from: skik on June 28, 2014, 04:55:43 PM
Quote from: not a lib on June 28, 2014, 02:57:27 PM
Quote from: skik on June 28, 2014, 02:56:05 PM
the shock looks stock but rusted pretty bad.tyres are front 120/70 zr m/c 58w. rear 160/80 b16 m/c 81h.im trying to put up pics but cant work out how to
http://www.fjowners.com/index.php?topic=341.0 (http://www.fjowners.com/index.php?topic=341.0)
made a balls up.posted pics in that link you give me and i cant delete it.i copied 3 codes and pasted but i only see one pic.anyway its late here.i will take more pics tomorrow and try posting them here then
As Ferd mentioned someone might have modified the dog bones to raise the rear up. Check the dog bones. Look to see if they appear factory or modified.
George
Quote from: movenon on June 28, 2014, 06:59:47 PM
Quote from: skik on June 28, 2014, 04:55:43 PM
Quote from: not a lib on June 28, 2014, 02:57:27 PM
Quote from: skik on June 28, 2014, 02:56:05 PM
the shock looks stock but rusted pretty bad.tyres are front 120/70 zr m/c 58w. rear 160/80 b16 m/c 81h.im trying to put up pics but cant work out how to
http://www.fjowners.com/index.php?topic=341.0 (http://www.fjowners.com/index.php?topic=341.0)
made a balls up.posted pics in that link you give me and i cant delete it.i copied 3 codes and pasted but i only see one pic.anyway its late here.i will take more pics tomorrow and try posting them here then
As Ferd mentioned someone might have modified the dog bones to raise the rear up. Check the dog bones. Look to see if they appear factory or modified.
George
dog bones??? what are they?
In the photo the dog bones are in the center of the photo just behind the center stand mounting holes (silver in color). They connect your shock to the swing arm. Your dog bones will be significantly shorter than the ones pictured.
(http://i119.photobucket.com/albums/o145/aviationfred/b319fdae-f445-4d60-9b5d-ef9b37fbb8bf_zpse1e5fc4f.jpg) (http://s119.photobucket.com/user/aviationfred/media/b319fdae-f445-4d60-9b5d-ef9b37fbb8bf_zpse1e5fc4f.jpg.html)
Fred
Quote from: skik on June 29, 2014, 03:14:04 AM
dog bones??? what are they?
Skik,
Index 15 on this Parts Breakdown. They set how far the rear wheel can travel up and down.
http://www.2wheelpros.com/oem-parts/1992-yamaha-fj1200ad-swing-arm-assembly.html (http://www.2wheelpros.com/oem-parts/1992-yamaha-fj1200ad-swing-arm-assembly.html)
Cheers,
Red
Here is a stock 1990 FJ dog bone (there are 2 of them). The shock is different than yours just ignore that. When the dog bones are shortened up it raises the rear of the bike (driving the rear wheel lower when it is on the center stand). A fairly common mod.
In most cases if they are made by someone here in the U.S. it is with flat bar and most likely will be a straight piece of flat bar (will not look like a "dog bone").
There are some adjustable ones on the market also.
Just for information, dog bones are only used on the 1988-1993 FJ's. (no 88's were sold here in the U.S.) Earlier FJ's have a different linkage set up.
(http://fjowners.com/gallery/4/1651_28_01_13_9_35_49.jpeg)
(http://fjowners.com/gallery/4/1651_21_02_13_7_05_31.jpeg)
Just more information. Let us know what you find out. A picture helps also if you can.
George
Stock length for your 92 should be 125 mm center of hole to center of hole. Hope this helps. If you can post some pictures that would be a big help.
Kurt
these bones look like a bit of straight metal.not stock[i think].do you think maybe they are not level and that is what is putting the stand off?(//URL=http://s1110.photobucket.com/user/skikman/media/DSCF4769.jpg.html%5Dhttp://%5Bimg%20width=690%20height=517%5Dhttp://i1110.photobucket.com/albums/h455/skikman/DSCF4769.jpg)[/URL](http://[/%5BURL=http://s1110.photobucket.com/user/skikman/media/DSCF4775.jpg.html%5D%5BIMG%5Dhttp://i1110.photobucket.com/albums/h455/skikman/DSCF4775.jpg)[/URL](http://)]][/img](http://i1110.photobucket.com/albums/h455/skikman/DSCF4759.jpg) (http://s1110.photobucket.com/user/skikman/media/DSCF4759.jpg.html)(http://)(http://i1110.photobucket.com/albums/h455/skikman/DSCF4760.jpg) (http://s1110.photobucket.com/user/skikman/media/DSCF4760.jpg.html)(http://[url=http://s1110.photobucket.com/user/skikman/media/DSCF4763.jpg.html%5D%5BIMG%5Dhttp://i1110.photobucket.com/albums/h455/skikman/DSCF4763.jpg)[/URL][/img]
They will not affect the center stand not being level, just the rear wheel position at rest.
Quote from: FJmonkey on June 29, 2014, 02:08:22 PM
They will not affect the center stand not being level, just the rear wheel position at rest.
are the bones stock?another thing.the abs light is flashing.i know the back brakes are soft and i was going to bleed them but the nipple head is rung.what size nipple tread do i need? m6,m7,m8,m10???
Quote from: skik on June 29, 2014, 01:03:24 PMthese bones look like a bit of straight metal.not stock[i think].do you think maybe they are not level and that is what is putting the stand off?
Skik,
Yeah, those straight-plate "dogbones" are not stock. That is why the rear end is so high in the air. Nothing is wrong with the center stand, except now it is too short. The correct length of dogbones will probably "fix" the center stand issue for you.
Cheers,
Red
If you want to keep the ride hight you can add some extra material to the top edge of the centerstand to prevent it from rotating so far over center. I have TIG welded and ground my stand to get it just right.
Quote from: JCainFJ on June 30, 2014, 03:50:18 PM
If you want to keep the ride hight you can add some extra material to the top edge of the centerstand to prevent it from rotating so far over center. I have TIG welded and ground my stand to get it just right.
Wouldn't it be better to add extra to the bottom? The amount it goes over centre is what stops it falling off the stand. I would not like to have the bike rocking off the stand with any less encouragement than it takes now and the height gain is negligible.
The best fix would be to reduce the rear end height, it looks way too high.
Noel
No, the centerstand on my 89 needed the extra material by the time it had 40,000 miles. There is lots of slop in the pivot holes, pivot bolts and the top edge of the stand that acts as the stop in the up position wares quickly. I raised the rear almost 1 full inch and I've never had any problems with it rocking off the stand.
Another "fix" is to simply lay a short section of 2x4 under the stand when you use it.
Raising the rear by shortening the dog bones can really help improve the handling of FJs. If you change the dog bones to "fix" the center stand you probably won't like how the bike handles then...
Of course the middle ground is to make another set of dog bones slightly longer than the current ones so the rear wheel is just off the ground when on the center stand.
I had mine raised up pretty high in the rear at one time and it will effect the handling. I since have lowered mine closer to the stock height, about 20 mm higher and am happy with the way it handles now. I have a rear rack and large top box usually with some misc. stuff in it so it settles with me on it at a good balance point.
You can make those dog bones easily with some flat bar and a 12mm drill bit. If you do, there are some design considerations. The weak point is around the bolt hole area, notable the side area. Use as wide a flat bar as you can fit. Good practice to round all the sharp edges and to paint or coat them as best you can.
Your side stand as is probably short now also unless the P.O. modded it.
George
thanks for all the tips folks.im glad its just the bog bones.was starting to think the frame might be twisted or something else bad.the bike handles well [smooth] .wonder if i could stick some hard rubber onto the bottom of the stands?
My 89 does exactly the same thing (both wheels just touching the ground on the main stand), I have the RPM shock on the back set to the correct preload, my fork are 1/4" for slightly faster steering. I don't have any mods to the bones so I just put the stand on a wooden board when oiling the chain etc. The bike handles/ rides fantastic so I'll be damned if I'm touching the current ride height.
Why don't you go on the road, light up the rear tyre until the tread disappears and presto - clearance :sarcastic: :good2: