2007 Z750 suspension

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gman said:

This is an 04-05 636 shock here....the regulator has been turned to stop the multiplug hitting the resevoir...........

Thanks Gman ;D

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Does it need to be turned,or just pre-caution...

[gman]

Yeah, it does need to be turned. There are marks on the undertray where the rear tyre has hit the tray and buffed the paint off when the bikes landed hard from jumps over bridges and humps. If it compresses this much with the new shock it will smash the plug. It's no bother to turn it though. The hardest part is rerouting the wire to give a wee bit more length and keep it tidy.

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Thanks for the info

I have got a new shape 2007 model ;D[/quote]

Snob! ;D

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Gman,got a supermoto for that kind of riding.

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good thread, ta for info as I got an 04. Shall pass this onto someone who knows what they're doing. Hopefully.

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After reading this post I went up to 15w fork oil and it has really changed the way my bike copes with the bumps. Low or high speed. cheers guys...And gals.

[gman]

bigsnig said:

After reading this post I went up to 15w fork oil and it has really changed the way my bike copes with the bumps. Low or high speed. cheers guys...And gals.

Hi mate, what did you set the air gap to? 140mm instead of the standard 130??

I cant get enough time to get this done. My new exhaust should be here in the next few days, so i'll do it all in one go. The theory about just changing the oil and not going to the expense of springs etc must work, just need to get my finger out and get it done ;D. How does it feel tunring in and on the brakes etc, any better??

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I have been told that the Zx10 shock will fit too but the spring has to be changed as it is too soft due to that bikes lighter weight.

If that's the case why don't you have to change the spring on a zx636 shock then? or is the 636 heavier than the ZX10

[Deleted]

sorry GMAN I didn't measure the air gap, other than with the end of a screw driver to see if they where even.
Just put in 385ml in each side like it says in the manual.
When I drained the oil it was about 400ml in the jug but it was full of air bubbles (couldn't be arsed waiting for it to settle).

So I might have a bigger air gap than standard, maybe I should have took a bit more care on this.

Under heavy braking the forks still compress right down to about 10mm short of bottoming out but don't dive as fast, and don't shoot up as fast.

I still think the progressive springs option would feel even better but this was well worth doing.

As for turning in it's still too cold to get enough heat into the 2CT's to throw about but even as it is it feels a lot more secure and sure footed.

I strongly recommend this to anyone above average weight 75kg I think it said in the book.

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Bigsnig,i was told that progressive springs are probably fitted to the 750 as stock,and sussy guy told me to put linear springs in,which in a few weeks will be doing the ride mag advise to the forks,as i got meself the 636 shock.

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Olly mate, pretty sure the stock springs in my 56reg z750 are not progressive as the coils are the same all the way tip to tip. If this is linear, which would seem right I think, then changing to other linear springs would mean changing to springs to match your weight,A good step foreword to improving handling on your bike, which is what we all must be after.
Although progressive springs would be universal for most riders weights and the easiest way without seeing the specialists.
As with most tuning its all about trial and error and the heavier oil on my bike was a definite improvement.
I weigh 105kg without kit and its not the springs more the damping which needed adjustment. If you weigh less than me I strongly recommend trying the oil first as £7.50 is a cheep test.

[gman]

I'm 74kg soaking wet, but like i said, i still feel it's way too soft on the front. Just like bigsnig, it feels to me like it just needs the damping, (more so the rebound) rumped up a bit.

I agree too it would be best to get all the springs matched to rider weight and set the sag front and rear to get it just right. But it's not like any of us road riders are even riding the thing to 80-90% of it's limits, pushing the front, getting it sliding coming out of the local roundabout ;D, so a few little mods will just make the bike easier to ride quickly. I still realise that you could bolt ££££ worth of Ohlins to my bike and any decent club racer on a std bike would make me look like i shold have L plates on.

I only have 2 problems with the suspention.
1/ The rear seemed really hard and would skip over bumps and jump about and there was bugger all adjustment to dial it out.

2/ The front dives too quick, bounces about and bottoms out sometimes.

On a more expensive bike anyone would change this by adjusting, preload and damping. So if i can fix it (or at least make it a good bit better) with a £40 shock and £8 worth of oil that seems to be a good deal. I know it's not as good as having the full works and changing springs and getting a full set up to my weight, but i'm a tight scotsman, so it's good enough. ;D

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I was quoted £65 for the springs,and fit myself,these are for my weight of approx 13 stone,and there actually softer but with 15w oil.

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Just got a 2005 ZX10 shock off ebay for £30

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bikermike48 said:

Just got a 2005 ZX10 shock off ebay for £30

If it's in good nick it's a bargain

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gman said:

I'm 74kg soaking wet, but like i said, i still feel it's way too soft on the front. Just like bigsnig, it feels to me like it just needs the damping, (more so the rebound) rumped up a bit.

I agree too it would be best to get all the springs matched to rider weight and set the sag front and rear to get it just right. But it's not like any of us road riders are even riding the thing to 80-90% of it's limits, pushing the front, getting it sliding coming out of the local roundabout ;D, so a few little mods will just make the bike easier to ride quickly. I still realise that you could bolt ££££ worth of Ohlins to my bike and any decent club racer on a std bike would make me look like i shold have L plates on.

I only have 2 problems with the suspention.
1/ The rear seemed really hard and would skip over bumps and jump about and there was bugger all adjustment to dial it out.

2/ The front dives too quick, bounces about and bottoms out sometimes.

On a more expensive bike anyone would change this by adjusting, preload and damping. So if i can fix it (or at least make it a good bit better) with a £40 shock and £8 worth of oil that seems to be a good deal. I know it's not as good as having the full works and changing springs and getting a full set up to my weight, but i'm a tight scotsman, so it's good enough. ;D

If your front end is bottoming out with your weight, then changing your fork oil can only add to the handling performance of your bike . And after that the air gap can be altered to suit your weight. Remember, more oil = less air gap. Just try it on standard oil capacity and work from there.

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Just fitted my 636 shock,big difference even tho i left settings as is, from previous owners bike,as i was looking for some starter point settings, but cannot find any for it when its fitted to the zed. Weigh about 83kg/180 lbs...

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olly said:

Just fitted my 636 shock,big difference even tho i left settings as is, from previous owners bike,as i was looking for some starter point settings, but cannot find any for it when its fitted to the zed. Weigh about 83kg/180 lbs...

try a search on this site on shock conversion. Or 636 shock. I am sure there is lots of info. Pretty sure the standard spring is a little too hard for the z, and someone fitted a hyperpro progressive or maxton spring, which worked a treat.
Sorry mate usually too pissed when I come on to this site to be any real use. But they seem to have made good use of the same shock, and posted the settings which worked well, just can't remember right now...hic.

[gman]

Go back a few pages on this thread. There's a base setting there which u can start with then play about with to suit your self.