sv 1000 suspension

speedaddictedberk · Post by **speedaddictedberk** » Fri Mar 18, 2005 10:12 am

I need to set up my SV1000 to cope with my slightly higher than average weight (fat), not really got a clue where to start....

i've read loads of stuff, its all different!

so, anyone got some spare time to show me what to do?

Post by al » Fri Mar 18, 2005 10:24 am

http://www.aberdeenbikers.co.uk/suspension.php

silverburn · Post by **silverburn** » Fri Mar 18, 2005 7:52 pm

I've pondered this very dilema, and read all the articles too, until I realised it actually handles perfectly well for my weight (5ft 8" tall, 11st 6lbs), and this was thoroughly tested in Dickie and I's trip to through the alps and pyrennes lasy year.

So my advice is - leave it alone, unless you're 13st or more.

The only real 'glitch' is the weave you get in some three-figure bends. At the track, of course, m'lud. But that just adds to the novelty... :I can't believe it's not butter!

Having said all that, I've put some new tyres on, and it simply refuses to drop into bends anymore - most noticeable on cold tyres (that'll be all the time at the moment). @rse.

speedaddictedberk · Post by **speedaddictedberk** » Sat Mar 19, 2005 9:11 am

umm, more than 13 stone..... i was 13 stone when i was a skinny 18 year old, now i'm 28 and fond of pizzas and cider (and cake!) :boozer

6'2" 17ish stone...... (i kinda feel sorry for the bike too...)

i find the bike feels a bit bouncy and soft , and its not tracking too well in faster corners, might be just me though.....

silverburn · Post by **silverburn** » Sat Mar 19, 2005 2:46 pm

it does weave a little, but it needs to be 100+ sweepers to bring them on for me. 'Normal' bends I find it very neutral.

At 17st, you might want to invest in a new set of spring and revalve, and maybe a new rear shock; I suspect (though I could be wrong) the standard settings won't complete cure the bouncies or the weaves even on maximum settings...

Or go on a diet! worked for me! was 13.5st myself, the bike handled like death; 6 months and 2st later, I was back to standard settings :I can't believe it's not butter!

That's the problem with curry & beer night out...I know I've got 60miles on the pushbike the next day to pay for it!

speedaddictedberk · Post by **speedaddictedberk** » Mon Mar 21, 2005 5:04 pm

[quote="silverburn"]
Or go on a diet! worked for me! [quote]

yeah, but realisticly......

set up the static and dynamic sag on sat, feels better. i'm going to try dropping the forks through the yokes by about 5mm, it worked wonders an the bandit.

then it looks like trial and error for the damping

missile · Post by **missile** » Mon Mar 21, 2005 5:10 pm

If you know the answer why ask the question?

speedaddictedberk · Post by **speedaddictedberk** » Mon Mar 21, 2005 5:28 pm

cos i still dont know what to do with damping, and was trying to avoid the turn and see method.
which i'll now be doing

missile · Post by **missile** » Tue Mar 22, 2005 10:18 am

The SV is a budget bike and fiddling with the suspension will not make much improvement. Having said that, IMHO it is better suited to shitty Scottish roads than any race replica. You need do nothing but ride it. Young Matt is no light weight and he manages pretty well.

White Power make an excellent little book which explains the black art of suspension tuning. It really depends on where and how you ride and of course on your own physical weight. As a rough guide, first set pre-load to suit your weight and desired static sag, then if it is too harsh you need to reduce compression if it pogoes you need to increase rebound. Take a note of the original settings!

Lowering the yokes will make it steer quicker, if you want that? Personaly I found the SV very easy to turn in, one of it's best features

Tyre pressure makes a huge difference. It is surprising how few check it regularly and most then rely on the garage gauge. Make sure you have an accurate gauge and use it once a week.

silverburn · Post by **silverburn** » Tue Mar 22, 2005 12:36 pm

sage-like advice from bob re: tyre pressures; I thought my shock had blown until I realised my rear tyres was only 18psi. doh.

speedaddictedberk · Post by **speedaddictedberk** » Tue Mar 22, 2005 8:16 pm

cool, hadint actually checked the tyre pressures.....

setting the sag has helped, had to crank up the rear preload (shock!) then added some rebound damping at the rear to settle it back down. The front just feels a little vauge, and its this that i'm trying to sort (i understand that this might not be possible due to the components).

I'll be visiting halfords on fri then!

dale123 · Post by **dale123** » Wed Mar 23, 2005 9:02 am

What does vague at the front mean? Do you have an example?

If the sags set already, what do you have the compression and rebound set at, and whats the range?

dale123 · Post by **dale123** » Wed Mar 23, 2005 10:41 am

I wouldnt recommend you use these slavishly, but they would give you some context as to what others do.

http://www.sportrider.com/bikes/146_susp_settings/

A great many settings, for a great many bikes.

Post by al » Wed Mar 23, 2005 1:08 pm

I've got a rear shock sitting here from a K3 GSXR which may fit and give you a bit more adjustability if you are interested.

Big Kneed Al (master of the emergency stop & "stand up" comedian).

Rocky Mountaineer · Post by **Rocky Mountaineer** » Wed Mar 23, 2005 3:58 pm

Missile (Spanish Fly) wrote: Young Matt is no light weight...

Post by al » Wed Mar 23, 2005 8:31 pm

YellowV wrote:
Missile (Spanish Fly) (Spanish Fly) wrote: Young Matt is no light weight...

Before -

... and after ...

... lots of pies!

speedaddictedberk · Post by **speedaddictedberk** » Wed Mar 23, 2005 9:15 pm

dale123 wrote:What does vague at the front mean? Do you have an example?

If the sags set already, what do you have the compression and rebound set at, and whats the range?

right, when zooming round a constant radius bend i find it hard to get the bike to stay on line (this is'nt epic, but annoying), turned up the rear re-bound half a turn, the rear compression qaurter turn. the rear preload went up about 5mm, and an extra ring on the front preload.

i'm happy enough with the rear as it is now, just dont know what to do with the front as its not bouncing or diving (since upping the pre-load).
it'll be fri till i get a new pressure gauge and some bike time in daylight, old gauge is fubar.

speedaddictedberk · Post by **speedaddictedberk** » Wed Mar 23, 2005 9:17 pm

by the way, which ones matt in the top pic?

Post by **Gazza** » Wed Mar 23, 2005 10:37 pm

speedaddictedberk wrote:by the way, which ones matt in the top pic?

You can't see him, he's hiding behind the lamp post

dale123 · Post by **dale123** » Wed Mar 23, 2005 10:47 pm

speedaddictedberk wrote:
dale123 wrote:What does vague at the front mean? Do you have an example?

If the sags set already, what do you have the compression and rebound set at, and whats the range?
right, when zooming round a constant radius bend i find it hard to get the bike to stay on line (this is'nt epic, but annoying), turned up the rear re-bound half a turn, the rear compression qaurter turn. the rear preload went up about 5mm, and an extra ring on the front preload.

i'm happy enough with the rear as it is now, just dont know what to do with the front as its not bouncing or diving (since upping the pre-load).
it'll be fri till i get a new pressure gauge and some bike time in daylight, old gauge is fubar.

OK, assuming you havent made any of the changes above to solve the understeer, Id say you need to up the rebound damping on the front.

Again assuming the scenario is brake, turn in, all OK, get on the gas and then you start running wide, then as you take weight off the front with the throttle the forks are extending too quick and changing the steering angle. More rebound damping on the front will slow that down, so you can finish the turn.

Thats only dealing with that specfic issue, and assuming everything else is right. Did you compare your settings to the SportRider ones?

speedaddictedberk · Post by **speedaddictedberk** » Wed Mar 23, 2005 11:16 pm

cheers that helps, i'll check the settings on fri (we have a family invasion , i'll be hiding in the garage!).
and hopefully escape for a few hours to test ride.....

dale123 · Post by **dale123** » Wed Mar 23, 2005 11:25 pm

No worries.

speedaddictedberk · Post by **speedaddictedberk** » Sun Mar 27, 2005 12:39 pm

ok, checked the settings against the sportrider ones, the main difference was an extra turn on the front pre-load. which has helped quite a bit!

impressive diagnosis Dale!

Tyres were down 2psi, so i pumped them up too.

now if it would only stop raining......

Post by al » Sun Mar 27, 2005 1:10 pm

I had to bump start the bike this morning as I'd left the bloody "side" lights on!

speedaddictedberk · Post by **speedaddictedberk** » Sun Mar 27, 2005 9:11 pm

yup, its totally impossible to look cool when trying to bump start the bike!

last time i tried to bump start anything was the bandit, which unfortunatly had fouled plugs and wouldent bump.
got about quarter of a mile down the hill before giving up and pushing the bloody heavy thing home.