r6 suspension setup probs

[gray84]

hi

i took my bike to a garage yestaday to sort my starting problem and the bloke (who tunes aprilias for racing) said the suspension setup was crap and surprised i havnt come off it yet. he said he can set it up for a cost or said he will give me advise which was nice of him. he gave me a book telling me all about sag/preload ect and its a step by step guide to set up. ive spent a fair bit of time doing it today and i went along the lines of the PB mag guide for the settings for a base and then i can adjust as i need. BUT if anything the bike feels more sloppy now and he said the main problem is my shocks are bottoming out . and when i was adjusting to the details in PB it wasnt that far out.
well if i go back to that chap hes gona want paying to set up and i would like to learn and set up myself plus saves me £50.

can anyone sugest any settings or guides or even tell me what they have theres set as? im stuck now as i dont know what to do

ive done the static sag/load sag , preload,compression, and rebound from this guide.

https://www.yzfr6.net/images/Suspension_Guide2.jpg
____________________
Road bike - 2002 YAMAHA R6(SOLD) 2008 YAMAHA R1(SOLD) 2007 APRILIA SXV 550(SOLD) 2007 SUZUKI GSXR 600
Dirt bike - 1989 HONDA CR80sw(SOLD) 1996 YAMAHA YZ125(SOLD) 2006 yamaha yz250(SOLD)

[Blue_SV650S]

[Blue_SV650S]

That is the official lowdown ... but do you know how I do it?!?!?

Set the sag by the book, then just play with the damping until - bike upright, when pressing on the tank (stood beside the bike), the front and rear go down roughly equally and the bike returns smoothly, if the bike 'pogos' on the return, you need to wind it up rebound more ...

Once this is done you are good to go .. suspension is all personal preference, but if you can get it to behave like the above statically, then its going to be hard to optimise it further from there as it will be very neutral, well planted and confidence inspring!!

p.s. That setup advice will not even cost you an e-


____________________
The purpose of life is to fight maturity.

[Bikeless]

As long as your in the right ballpark with your sag and maybe spring rates everything else is personal preference as said above.Some people like their damping hard,some people like it soft.

Unless you've got quality suspension(ohlins,wp,etc)you can't go far wrong as the manufacturers don't allow too much to play with anyway.

[gray84]

cheers ill have a read of all that in a bit after my dinner
the main thing he said was the front end was loose and chattering/bottoming out breaking. what would need adjusting for that?

cheers again
____________________
Road bike - 2002 YAMAHA R6(SOLD) 2008 YAMAHA R1(SOLD) 2007 APRILIA SXV 550(SOLD) 2007 SUZUKI GSXR 600
Dirt bike - 1989 HONDA CR80sw(SOLD) 1996 YAMAHA YZ125(SOLD) 2006 yamaha yz250(SOLD)

[nowhere.elysium]

edit - extended rant about something that was utterly, utterly wrong.
Whoops.

Normal service will resume shortly

[Bikeless]

Adjusting preload does not affect springrate and will not make your forks stiffer,it will just affect sag and ride height.

[nowhere.elysium]

I've just re-read what I wrote, and you're right.
I'm gonna put the beer down now, and stop making recommendations this evening, methinks. I'm already in danger of talking bollocks, I reckon.


____________________
'10 SV650SF, '83 GS650GT (it lives!), Questionable DIY dash project, 3D Printer project, Lasercutter project

[Blue_SV650S]

[FASTERTHANSID]

Why don't you just take it to your nearest suspension specialist who will charge you about £50 for getting it set right. Or you could just go of the conflicting answers being given to you by suspension specialists who have read a bit of fast bike.

Its a bit of a black art and you will bollox it up even more unless you are 100% sure of what you are doing.

[Bikeless]

I haven't seen any conflicting answers and my advice comes from setting my own bike up and talking to Nick White at KAIS who done my forks not some bike magazine.Why pay £50 for something which is easy to do yourself.

[gray84]

bluesv650s i weight 13stone. i just wanna know what to adjust to do what and what to do so its in the right margin for fast road use.im going to have a read up in abit

and fasterthansid its cus id like to learn. likie i said the chap is willing to do it for me but thats not as fun . he even said once ive set it up he will have a go and see what he thinks but is it all down to the riders preferance?
____________________
Road bike - 2002 YAMAHA R6(SOLD) 2008 YAMAHA R1(SOLD) 2007 APRILIA SXV 550(SOLD) 2007 SUZUKI GSXR 600
Dirt bike - 1989 HONDA CR80sw(SOLD) 1996 YAMAHA YZ125(SOLD) 2006 yamaha yz250(SOLD)

[Polarbear]

gray84, I thought I knew how to set up suspension but I could not get my Hayabusa right. I've set up other bikes quite happily but not this one. Whatever i did something wasn't right.

But a bloke who does a lot of track days helped me and he knew what he was talking about, so my suggestion is get someone who actually does set up suspension to do yours for the first time, showing you what he is doing and then it isn't quite so much black magic

Don't be afraid to ask someone with the same bike as you, he might talk crap, he might be a wizard but I guarantee he will know something useful.
____________________
Triumph Trophy Launch Edition

[Blue_SV650S]

[gray84]

oh i thought it was a case of how IT SHOULD ride rather than hoe YOU WANT it to ride. im gona have a good play at the weekend. is it the compression and rebound i need to adjust it all feels sloppy at the mo?
____________________
Road bike - 2002 YAMAHA R6(SOLD) 2008 YAMAHA R1(SOLD) 2007 APRILIA SXV 550(SOLD) 2007 SUZUKI GSXR 600
Dirt bike - 1989 HONDA CR80sw(SOLD) 1996 YAMAHA YZ125(SOLD) 2006 yamaha yz250(SOLD)

[Blue_SV650S]

[Noxious89123]

Ok, well first thing i would do i set the bike to standard factory settings. Then bump the preload up by a notch or two (as 13st is a bit more than your standard japanese rider), until the sag is how it should be.

If the front is bottoming out, it might need less rebound and/or more compression. ie. takes longer for the bumps to squish them all the way down, and they recover quicker between bumps.

It is quite easy to mess up though. Nothing i do seems to make an improvement. Ride feels quite harsh on my bike atm .

Although both my front and rear tyre and squared off, so i blame them for it riding like shit atm...
____________________
'06 Honda CBR125RW-6 ~ '00 Honda CBR600F-Y ~ '07 Honda CBR600RR-7 ~ Bikeless
'53 Ford Ka 1.3 ~ '03 Vauxhall Astra SRi 1.8 ~ '52 Vauxhall Astra SRi 2.2 ~ '53 Vauxhall Astra GSi

[Blue_SV650S]

[Blue_SV650S]

[Noxious89123]

I'm only 8st! Front suspension is all standard (although i tried it with 1/4 turn more compression and rebound. Made little / no difference). Rear suspension i;ve got the preload set 1 notch above standard. Makes the steering feel much more precise an responsive, so a definite + point to that change. Was rather bouncy feeling at times, so increased the compression a bit. Just felt a little less compliant with bumps. It's nearly a 10y/o bike, so the damping oil is probably waaay past it's best by now. An aftermarket rear shock is so expensive though, and i'm not sure yet if i want to keep this bike or sell it in a year or two. (Mmm, 929).

Oh, and something else that might interest you. More rear preload means the rear of the bike will sit a little higher. (ie, the preload is higher / "harder"). But because of th rising rate linkage, it effectively makes the spring rate lower / softer!

I'm leaning towards it being fucked tyres causing the poor handling at the moment. Once the roads have cleared up a bit better, an i've got fresh rubber fitted i'll start fiddling again.
____________________
'06 Honda CBR125RW-6 ~ '00 Honda CBR600F-Y ~ '07 Honda CBR600RR-7 ~ Bikeless
'53 Ford Ka 1.3 ~ '03 Vauxhall Astra SRi 1.8 ~ '52 Vauxhall Astra SRi 2.2 ~ '53 Vauxhall Astra GSi

[Blue_SV650S]

[Bikeless]

[Wafer_Thin_Ham]

Put it all back to standard and go from there.

If you aren't sure how to set the sag then don't bother.

(Although it's easy and would take you and a mate about 20 minutes.)

And yes sounds like the guy you spoke to was trying to pull a fast one. If it was really that dangerous you would feel it.
____________________
My Flickr

[MarJay]

www.majay.co.uk/setup.pdf

Its free, its good and it tells you everything you need to know.

The thing is, if this guy didn't tell you your setup was crap then would you have even cared? No. This makes him a cnut. Also, how does he know its not a good setup for you and the way you ride?

Cnut.
____________________
British beauty: Triumph Street Triple R; Loony stroker: KR1S; Track fun: GSXR750 L1; Commuter Missile: GSX-S1000F; Cheap project: CBR900RR FireBlade
Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another.

[Blue_SV650S]