Author Topic: Shocked!  (Read 3304 times)

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Offline Fred

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Re: Shocked!
« Reply #10 on: July 30, 2012, 03:37:46 PM »
Scarfey, mate,

I caught the typo there. ::)

As I always say, "Anyone under 6' 5" is not the normal height" ;D ;D ;D
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Offline SCARFEY

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Re: Shocked!
« Reply #9 on: July 28, 2012, 12:39:49 PM »
Glad to hear it Erroll. My first XS I had to cut the seat foam down and lower the forks in the brace to reach comfortably.  I still however maintain that anyone over 5' 6" is built wrong ;D ;D ;D
George Scarfe
Aka Scarfey

1981  Honda CBX 1000 Prolink 6 Cylinder
2003 BMW R1150 GS
2004 DR 650 Suzuki.

XS1100 GONE TO A BETTER PLACE as has the old Honda Dominator.

Offline Eveready1100

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Re: Shocked!
« Reply #8 on: July 27, 2012, 07:59:58 PM »
Well Bryan, you successfully got me to go out and have a look under the rear of my bike to check the proximity of the stand. It's all good though. It's probably got a lot to do with the 16 inch rear wheel I'm running versus your 17 incher, eh? That's lucky though, as I wouldn't (didn't) have dreamt of any clearance issues down there.
Errol
1979 XS1100 SF Special
1978 XS1100E Donor
"I know stuff about stuff."

Offline AussiXS11G

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Re: Shocked!
« Reply #7 on: July 27, 2012, 07:49:39 PM »
regarding the longer shocks......
besides being excess weight, I removed the centre stand from my machine as, under acceleration, the rear tyre would touch the stand and flick it down.......
it took me a while to work out what the noise was but seeing the rub mark on the stand confirmed it.
I know what you are thinking.... if I don't have that cappuccino at morning tea I can save another 250grams of weight too.... ;D
Bryan
Mobile 0404 540 617
1998 Laverda 750S
1984 Laverda RGS 1000
1980 Yamaha XS11
1980 XS1100 outfit
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Offline Eveready1100

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Re: Shocked!
« Reply #6 on: July 27, 2012, 01:58:12 PM »
Steveo, the swingarm angle has altered by about 7 degrees. I can't really foresee any issues with the extra angle on the uni joint. Bryan (Aussiexs11G)  has had the same length shocks on his bike for some years without any reported dramas, and his bike's pulling over 105 rwhp, which gets  a workout from time to time, so if it was going to give any trouble, his bike would've demonstrated it by now.
As for the drive oil level, of course I will add a touch more to compensate for the slight difference in angle.

And Scarfey, yes, I can comfortably stop with both feet nearly flat on the ground.
Errol
1979 XS1100 SF Special
1978 XS1100E Donor
"I know stuff about stuff."

Offline Steveo

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Re: Shocked!
« Reply #5 on: July 27, 2012, 10:16:37 AM »
How much does this mod change the drive shaft angle during acceleration? Is this going to create an issue with the u-joint? When you put oil in the rear end do you end up underfilling?

Offline Eveready1100

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Re: Shocked!
« Reply #4 on: July 27, 2012, 12:59:37 AM »
Thanks for the pressure info, guys. I'll adjust them later on today
Errol
1979 XS1100 SF Special
1978 XS1100E Donor
"I know stuff about stuff."

Offline AussiXS11G

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Re: Shocked!
« Reply #3 on: July 26, 2012, 08:49:02 PM »
what Scarfy said about tyre pressure, Errol.... :D
Bryan
Mobile 0404 540 617
1998 Laverda 750S
1984 Laverda RGS 1000
1980 Yamaha XS11
1980 XS1100 outfit
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Offline SCARFEY

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Re: Shocked!
« Reply #2 on: July 26, 2012, 08:21:50 PM »
Hey Errol can you still reach Mother Earth.

BTW I never run my Front/Back tyres at less than 36/42 I find it takes away the fromt tyre scalloping.
George Scarfe
Aka Scarfey

1981  Honda CBX 1000 Prolink 6 Cylinder
2003 BMW R1150 GS
2004 DR 650 Suzuki.

XS1100 GONE TO A BETTER PLACE as has the old Honda Dominator.

Offline Eveready1100

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Shocked!
« Reply #1 on: July 26, 2012, 02:41:28 PM »
I felt it was time to do something about the constant pounding my spine has been getting on the run to work. There's only two options for the trip and both of them are "not tarred to track standards".
I read somewhere that the XS11's could be had with a variety of spring and damper options and it looks like I've ended up with shocks the stiffest springs and hardest damping, when combined with my tare weight of 68kgs, makes for a very rough ride. In many instances, if I fuel up at Childers and grab a carton of milk for coffee, I have arrived at work to find the topbox awash with its contents, so I got to thinking about a fix.

I wasn't sure if my memory was diffusing details on me but I recalled that I'd fitted my original XS11E with some shocks off a GPZ 1100 and that it was very comfortable to ride.


 ^ Circa 1983-ish

So I began my search for a pair at the right price just to try on for size. I managed to snaffle a pair in good nick for the princely sum of $30 and went about fitting them up.


 ^ As you can see, they are obviously longer at 345mm centres, but a lot of the appeal back then, and now was the 7 position spring preload adjusters and the 5 way damper adjustments by rotation of the spring collar.


 ^ These came with small eyes fitted to the lower mounts so a quick swap from the old shocks had them ready to go on.


 ^ Original starting height


 ^ Fits a 3x2 under the rear tyre while on the centrestand.


 ^ Frame clearance from rear tyre.


 ^ Frame clearance with new shocks


 ^ Just a little higher.


 ^ rear tyre now sits on floor while on centrestand. Very easy to put up there now. I have some small timber blocks to slip under the stand if I have to get the wheel off the ground.


 ^ Original stance


 ^ new look


 ^ Before


 ^ After

After a few trips to work, I can say that my memory wasn't playing tricks on me. Ride comfort is so much better and I haven't had a single drink casualty since the mod. I did have to do som major adjustment to the headlight aim, but that's all that was needed. Also have to make some longer support struts for the towbar, as it's well above where it originally started out.
BTW, I have both the spring and damper adjustments in the middle settings, which suit the roads and my riding style perfectly.

I noticed that Bryans bike has longer than standard shocks on it and vaguely recall that he ran higher pressure in the BT45 front tyre that he used to run. I have increased mine to 32lbs for now, and that has diminished the slight squirrelly feeling that I got from the front end on my first ride.

So, I've tried it, I liked it, so now I'm contacting the KYB people to see if I can get hold of a new set.
I'll keep you all posted.

BTW, the Shockies part number on the sticker is KYB 1007, if anyone's interested



« Last Edit: July 26, 2012, 02:46:07 PM by Eveready1100 »
Errol
1979 XS1100 SF Special
1978 XS1100E Donor
"I know stuff about stuff."