Rear Ride Height Adjuster on 7R...

[ajhutch]

right lads, i think its time for me to raise the rear end a bit.

had a quick look but cant find steps how to do it... EXACTLY.
can any of you lads help?
what has to come off to be able to get at the adjuster?
i know where it is, but it looks kinda tight in there.
i presume the tank, rear panels and battery have to come out?! anything else?


cheers in Advance!
AJ

[mattyv74]

I'm was actually planning on adjusting mine up by 10mm (3/8"ish) this afternoon. I'll let you know how I go and what needs moving or removing.

[MadKaw]

Its pretty easy. You have to take the seat and tank off, but thats about it.
You will need a 22mm (you might check that size) open end spanner to wind up the nut. I had mine raised about 10mm and it certainly helps with cornering..
I also dropped the front about 8mm...

[ajhutch]

Its pretty easy. You have to take the seat and tank off, but thats about it.
You will need a 22mm (you might check that size) open end spanner to wind up the nut. I had mine raised about 10mm and it certainly helps with cornering..
I also dropped the front about 8mm...

thats alot of change. hows the handling? do you get any tank slappers?
i dont think ill be going that extreme because Irish roads are alot shitter than yours and she wouldn't be able to take it.

cheers Matty, appreciate it!

[MadKaw]

It wasn't too bad, the zx7r is so stable it can take a a fair bit of adjustment before it gets unsettled. I was doing a few track days and it was a good setting compromise for street and track. For street only I'd probly just raise the rear. Try 5mm at a time and see what you think.
When I first started mucking around with the front I dropped it about 10 to 12mm (by accident), that was terrible, I found that about 7 to 8 was about right for me. I also put heavier fork oil in and stiffened the front up so it worked better with the changed geometry and didn't dive too much. It was little harsh on the road but you get used to it..
My ZX9 is dropped 6 -7mm mm at the front and raised 12 -13mm at the rear, Its still very stable but I do have a dampner on it...

[ajhutch]

i can never get my forks to dive, no matter how hard im braking.
i dunno, it must be coz im so light.

ill put the rear up about 5mm, hopefully this weekend, and see what it feels like. gonna need a new rear tyre soon so ill get a 180 to help turn in.

[mattyv74]

Ok, so I've just got mine done. Now there is a 10mm gap between the frame and the top of the shocker. That means those two welds are doing a fair bit of work. Might put a neat spacer in there so the frame is actually sitting on the shock as per origional but still have 10mm rise.
Also just removed the ram air baffles and taped up the larger chambers in the runners before the air box. Also have cleaned the filter out and removed the metal mesh from the element. Off to Melbourne now to test it and then off to Reefton (4th time lucky) tomorrow if all goes well.

I'll post my results with some pics once I've decided how well these mods work.

More poke, more turn. Woo Hoo.

[ajhutch]

what ram air baffles are you talking about? any pics of them??
what will taping up the larger chambers in the runners before the air box do?

never heard of all this being done before but im interested!

[mattyv74]

Awsome, How good do these bike get??
Sorry for the
slow response AJ, but I've working and then the site crashed.
10mm rise at rear has had a dramatic effect on handling of my 7. It now turns in very easily and you need to nail it really hard exiting corners to get head shake.
So far I've dropped the front by 8mm, replaced the origional 5wt fork oil with 7.5wt and increased its level by about 10mm (i think by memory, but would need to check) and finally jacked the arse up by 10mm.
The only down side is that it doesn't hold it's line quite as well on real bumpy corners.
Mario and I had a fair scrap on Friday and I noticed a few things:
-Mario can ride really fast when provoked.
-I did loose ground to his 6r in the bumpy corners
-but it was bloody quick through turns with a good surface
- and turned in like a demon in any situation.
- It wiil also now change line mid corner if you need to. (lucky for me )
-The front seems to be more compliant on slow bumps like speed humps and driveways etc.. Due to steep fork angle created by higher rear I figure.

What really surprised me was the fact that I was on slicks (errr tread free ) and the road was still damp in spots and I think that was about as quick(well as fast as I'll ever admit to ) as I've ever been up Reefton spur(arguably one of the very best biking roads in Oz) . Although the road was slippery, the feed back and control the adjusted shocks gave was fantastic and enabled me to push on pretty hard. Finally got some dry(ish) roads, and holy crap Batman.....

The new ram air mod is pretty cool too. The indruction growl has gone up a tad I also removed the s/steel mesh from the element and just left the foam in the plastic frame. I cheched it out carefully and it all seems to be secure enough. There may be a very slight drop in torgue under 5grand or about 60km/h. This was extremely slight and I would even need a few more comutting rides to really confirm this.
But from 8500rpm, look out. From 160km/h at 9000+ this thing really goes. Even more than origional.
I'll add this mod with details and pics to my "Matty's 7r" thread. Just need to get a hold of a camera again.

[MadKaw]

Good stuff Matty, sounds like the exact set up I had on my 7..
Shouldn't be any reduction in torque though, you may just need it rejetted after the mods.. If your getting some head shake and its not working too good in bumpy corners you may want to bring the front up a couple of mm until it feels better, you may also soften the settings for the road then bump em back up for the track..
The 7 wasn't that great on bumpy surfaces to begin with, something about being 205kg..

Have you changed the gearing..?? 1 down on the front or 2 or 3 up on the rear is the go...

[mattyv74]

Hey Dave, my cpmplaints were very minmal. The torque issue is so litle it may have been in my imagination.
Yeah i agree that softening the springs will help for usual road use.
I'd love to get some of those hand dials for the top of the forks that I see on some of the racers. I assume they'd make on board adjustment a piece of piss.
The carbs have been rejetted already to suit the new pipe etc.
I have a -1 drive gear but generally only use it fo PI so that I don't need first in the hair pins. I hate the big jump in ratio's from 1st to 2nd.
But I do tend to run out of revs in 6th if I use this on the road when we venture of to some of the more remote stretches of vic. (I don't condone speeding though ) This is not an issue on track days coz most straights are less than a k long. So I do change front cogs around to suit if I'm planning on having a crack.
Do you think removing the front mesh from the ram inlets will let too much big crap into the air box? I don't expext any hp benefits but I tried it when I had the rams off last week and they look cool.
As for holding a line, I think it's just a matter of riding appropriately.
Any thoughtsw on the use of a spacer to take the load of those two fairly small welds on the rear shocker mount?