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Old 03-23-2009, 04:21 AM   #136
Brute
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Thanks Johno , I just went back & re read this whole thing . ( should have done that before asking . Another good thing , it seems notmybike was happy with his .48 springs .
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Old 03-23-2009, 07:47 AM   #137
notmybikemodelname
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Quote:
Originally Posted by johno
The BMW bearings wont fit. You need the yamaha bearings.
The Yamaha bearing cups will fit in the BMW head stem.
I meant all stock Yamaha

I don't know what year you have of BMW or Yammie forks, but mine fit perfectly!. All I did was add a 1/4" shim under the triple clamp, as my forks did not have enough thread on them to fully tighten them up. Couldn't have been easier or fit better. Seals perfectly and absolutely no slop. I've already put over 1000 miles of hard and rough So-Cal desert miles on mine.

I took it apart this weekend to do an inspection and regrease. It was perfectly snug still and the grease was brand new.
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Old 03-24-2009, 12:44 AM   #138
johno
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I am not claiming to be an expert, but I had an F650GS, which I did headstem bearings on, and they are the same bearings as the R100GSPD.
When I fitted 2003 YZ450 forks to my GSPD, I used the Yamaha bearing, and seal kit, which fitted perfect.
Now, I cant remember, but I think although the BMW bearing cones fit in the top Yammy cup, and visa versa, I think the taper on the bearing is slightly different.

I have done around 4,000KLMs on my Yammy conversion, and it is running great.
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Old 03-24-2009, 05:42 AM   #139
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Quote:
Originally Posted by johno
I am not claiming to be an expert, but I had an F650GS, which I did headstem bearings on, and they are the same bearings as the R100GSPD.
When I fitted 2003 YZ450 forks to my GSPD, I used the Yamaha bearing, and seal kit, which fitted perfect.
Now, I cant remember, but I think although the BMW bearing cones fit in the top Yammy cup, and visa versa, I think the taper on the bearing is slightly different.

I have done around 4,000KLMs on my Yammy conversion, and it is running great.
Johno,
Same here, it was a bolt on operation from the bearing fitment perspective. I used a KTM 525 metal dust seal with the standard washer and nut from the Yamaha.

The bearing taper is the same but the depths and diameters of the cups are different. This mix and match seems to work out fine and is discussed on the Timkin Bearing (and f650.com) web sites if someone wants more detail.

Rad
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Old 03-24-2009, 07:01 AM   #140
WayneC1
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YZ SHB Bearing Info

As per an earlier post I looked at the pivot works catalogue

Link to their product page for YZF SHB Kit

http://www.pivotworks.com/index.cfm?...productid=1536

Kit Components are
Pivot Works Kit Part Number PWSSK-Y05-421
Pivot Works Component Part Number Quantity Per Kit Component Description
Y-BE-105 1 Bearing - 28.00 x 52.00 x 16.40 Cone
Y-BE-106 1 Bearing - 29.98 x 52.00 x 15.95 Cone
Y-SE-105 1 Seal - 28.50 x 60.50 x 4.15

For Models:
2001-2009 Yamaha WR 250F, 2000 Yamaha WR 400F, 2001-2002 Yamaha WR 426F
2003-2009 Yamaha WR 450F, 2000-2009 Yamaha YZ 125, 2000-2009 Yamaha YZ 250
2001-2009 Yamaha YZ 250F, 2000-2002 Yamaha YZ 426F, 2003-2009 Yamaha YZ 450F

So all the year models are the same bearing size it seems

The BMW SHB Bearing is 28 x 52 x 16 - SKF 320/28 X/Q

Awaiting confirmation from another owner here who has just bought a BMW set
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Old 03-24-2009, 11:11 AM   #141
JDRadman
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Quote:
Originally Posted by WayneC1
As per an earlier post I looked at the pivot works catalogue

Link to their product page for YZF SHB Kit

http://www.pivotworks.com/index.cfm?...productid=1536

Kit Components are
Pivot Works Kit Part Number PWSSK-Y05-421
Pivot Works Component Part Number Quantity Per Kit Component Description
Y-BE-105 1 Bearing - 28.00 x 52.00 x 16.40 Cone
Y-BE-106 1 Bearing - 29.98 x 52.00 x 15.95 Cone
Y-SE-105 1 Seal - 28.50 x 60.50 x 4.15

For Models:
2001-2009 Yamaha WR 250F, 2000 Yamaha WR 400F, 2001-2002 Yamaha WR 426F
2003-2009 Yamaha WR 450F, 2000-2009 Yamaha YZ 125, 2000-2009 Yamaha YZ 250
2001-2009 Yamaha YZ 250F, 2000-2002 Yamaha YZ 426F, 2003-2009 Yamaha YZ 450F

So all the year models are the same bearing size it seems

The BMW SHB Bearing is 28 x 52 x 16 - SKF 320/28 X/Q

Awaiting confirmation from another owner here who has just bought a BMW set
Important note to anyone wondering about the bearing discussion and the different sizes. The BMW can and does use the same size top and bottom bearing. They can do this because of the rather complex (read expensive) adjustment method. The Yamaha needs a larger bearing at the bottom so it slides over the stem and seats firmly on the bottom of the the stem on top of the bottom triple clamp. Then the smaller top bearing can fit tightly over the top of the stem. I don't believe there are any real "load" based reasons for the larger OD on the bottom bearing.

Just a foot note to the discussion for those that haven't torn into their bike yet.

Rad
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Old 03-27-2009, 09:45 AM   #142
Aries71
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Hey guys, for those that have done this mod aka JDRadman and NOTMYBIKESMODELNAME, do you find your DAKAR side stand to be long enough? My bike was "blessed" with the lowered suspension , so I need to get my side stand lenghtened, same with my center stand.

Also if you have some measurements of a DAKAR side stand that would be great.

Cheers
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Old 03-27-2009, 09:56 AM   #143
JDLuke
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Quote:
Originally Posted by Aries71
Hey guys, for those that have done this mod aka JDRadman and NOTMYBIKESMODELNAME, do you find your DAKAR side stand to be long enough? My bike was "blessed" with the lowered suspension , so I need to get my side stand lenghtened, same with my center stand.

Also if you have some measurements of a DAKAR side stand that would be great.

Cheers
Oooh, that's a good point! I'll get to do some cutting and welding on the sidestand when I install my kit.
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Old 03-27-2009, 09:58 AM   #144
notmybikemodelname
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Quote:
Originally Posted by Aries71
Hey guys, for those that have done this mod aka JDRadman and NOTMYBIKESMODELNAME, do you find your DAKAR side stand to be long enough? My bike was "blessed" with the lowered suspension , so I need to get my side stand lenghtened, same with my center stand.

Also if you have some measurements of a DAKAR side stand that would be great.

Cheers
Mine started as a Dakar, so it's long enough....barely. At least that's what my wife tells me I'm looking at aftermarket stands because the bike does lean a little too much and it has fallen over in some soft stuff. But I was on it and drunk, so that might explain it ................and I actually forgot to put the kickstand down.............did I mention I was drunk as well?
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Old 03-27-2009, 10:07 AM   #145
tbarstow
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Quote:
Originally Posted by notmybikemodelname
Mine started as a Dakar, so it's long enough....barely. At least that's what my wife tells me I'm looking at aftermarket stands because the bike does lean a little too much and it has fallen over in some soft stuff. But I was on it and drunk, so that might explain it ................and I actually forgot to put the kickstand down.............did I mention I was drunk as well?
Just keep leaning it against the fences we come across, like you did at the top of the Saddlback in the fog!
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Old 03-27-2009, 10:38 AM   #146
notmybikemodelname
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Quote:
Originally Posted by tbarstow
Just keep leaning it against the fences we come across, like you did at the top of the Saddlback in the fog!
Ah yes, after the infamous 4pm Friday to 9am Saturday alcohol infested Two Mountain Full Moon Ride. That was a good time .

List of other things I leaned my bike against recently:

2008 MErcedes BEnz 500 class
Myriad rocks
A portapotty
Dirt
Other motorcycles
Gas pump

The list goes on and if I also list the stuff I leaned it against while I was stopped, it gets much larger.
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Old 03-27-2009, 04:19 PM   #147
WayneC1
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A 20 to 25mm plastic sidestand extender which enlarges the base of the stand works quite well & is replacable & easier than cutting & welding the stand

Just remember to put it into gear when parking on a slope if you go down this path or the beast will take a small nap on the footpath as mine did one day
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Old 03-28-2009, 03:01 AM   #148
JDLuke
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Quote:
Originally Posted by WayneC1
A 20 to 25mm plastic sidestand extender which enlarges the base of the stand works quite well & is replacable & easier than cutting & welding the stand
Easier, schmeazier. I'm gonna melt me some metal!
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Old 04-02-2009, 09:10 AM   #149
Aries71
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Bump, just want to keep this one alive.

How's everybody doing with their project?

I'm at a stand still with mine, the fancy Applied Racing triple clamp that I had for my forks turned out to have hairline cracks in the lower and upper; good thing I noticed them before installing them, could have been interesting on the trails if they snapped on me!!! So now I'm just waiting for a new set to come in, probably a week or so.

JDLuke, did you extend your sidestand yet? if so how long did you make it?

Cheers
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Old 04-02-2009, 09:25 AM   #150
JDLuke
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Quote:
Originally Posted by Aries71
Bump, just want to keep this one alive.

How's everybody doing with their project?

...

JDLuke, did you extend your sidestand yet? if so how long did you make it?

Cheers
I'm working *slowly* on this one. I found myself in a funding crisis this Winter, so all I have coming for now is the axle and bracket, which I figure was a special, one-time deal. I'm now waiting on the shipment. All the other bits and pieces I'm putting off for another couple of months. Stupid orthodontics.

So my bike is still stock in terms of suspension and side-stand, and will remain so for months to come. It is possible that I will not do the actual build until next Winter, since I commute on the bike daily.
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"Used to be Man vs. Nature.. then Man vs. Space.. then Man vs. the Moon. Now it's Man vs. Food" - Dalar
"you cannot reason a person out of something they were not reasoned into." - Jonathan Swift
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