ZX7R
Author
Discussion

Lee540

Original Poster:

1,586 posts

170 months

Sunday 19th May 2013
quotequote all
Hi all

Picked up a 98' ZX7R yesterday. Anyone else owned or owns one?

Any tips? mods?

Already got full arrow system and different camshafts/carbs and a load of carbon.

Cheers

Lee

TheLordJohn

5,746 posts

172 months

Sunday 19th May 2013
quotequote all
Probably not much help to you as I've never owned one, but I was looking for a nice one after selling my K4 GSX-R 600.
Ended up with a 2002 ZX6-R for £1450 instead!

moanthebairns

18,845 posts

224 months

Sunday 19th May 2013
quotequote all
where is the pictures

Lee540

Original Poster:

1,586 posts

170 months

Sunday 19th May 2013
quotequote all
I've just come from a ZRX1100, had a 6R A1P a few years ago.. fancied a 7R cos I love the looks! smile

VidalBaboon

9,074 posts

241 months

Sunday 19th May 2013
quotequote all
Resonator delete, rolling road set up, Mille swing arm, dymags, Nissin 4 pots (RR), Brembo radial MC, titanium bits and bobs, rear shock.

Plenty you can do to them, but the best thing I found- VFM wise, was a suspension re-build and sticky tyres.

TheLordJohn

5,746 posts

172 months

Sunday 19th May 2013
quotequote all
Lee540 said:
I've just come from a ZRX1100, had a 6R A1P a few years ago.. fancied a 7R cos I love the looks! smile
Mine's an A1P, which you'll probably know that as I said 2002. Any owner recommendations?

Lee540

Original Poster:

1,586 posts

170 months

Sunday 19th May 2013
quotequote all
2002 might be a late J2.. A1P if it has 636 motor. Bubble screen and shotgun rear light clip.. keep standard exhaust and enjoy the induction noise! smile

TheLordJohn

5,746 posts

172 months

Sunday 19th May 2013
quotequote all
636 wink

podman

9,040 posts

266 months

Sunday 19th May 2013
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Wheres Pete?!


3DP

9,991 posts

260 months

Sunday 19th May 2013
quotequote all
Congrats! Get some pictures up!

I have a pretty tidy '99 P4 that I've restored to as close to as new as I can get. Had it since 2008 - lots of mods, but kept it cosmetically pretty standard. Does under 500 miles a year since the full restore, but I still love it!

Loads of worth while mods to do, but for best feel, refurb brakes and suspension and replace all of the chassis bearings if you have the time.

My mods include off the top of my head:

Float bowl mod.
HM racing needles and springs.
Klean air system blanked.
Full Micron race system.
Twin brakeline setup.
Braided hoses.
HM Racing forks with Hagon progressives.
Nitron rear shock with remote preload adjuster.
4 degree ignition advancer (quite an improvement over stock, but means super unleaded only fuel).
Uprated clutch and stiffer springs.
K&N air filter.

etc etc.

119bhp at rear wheel and lightened to the tune of about 15-20kg.


Lee540

Original Poster:

1,586 posts

170 months

Sunday 19th May 2013
quotequote all
Cheers for replies, pictures tomorrow.

What is the float bowl mod?

3DP said:
Congrats! Get some pictures up!

I have a pretty tidy '99 P4 that I've restored to as close to as new as I can get. Had it since 2008 - lots of mods, but kept it cosmetically pretty standard. Does under 500 miles a year since the full restore, but I still love it!

Loads of worth while mods to do, but for best feel, refurb brakes and suspension and replace all of the chassis bearings if you have the time.

My mods include off the top of my head:

Float bowl mod.
HM racing needles and springs.
Klean air system blanked.
Full Micron race system.
Twin brakeline setup.
Braided hoses.
HM Racing forks with Hagon progressives.
Nitron rear shock with remote preload adjuster.
4 degree ignition advancer (quite an improvement over stock, but means super unleaded only fuel).
Uprated clutch and stiffer springs.
K&N air filter.

etc etc.

119bhp at rear wheel and lightened to the tune of about 15-20kg.

sfaulds

653 posts

304 months

Sunday 19th May 2013
quotequote all
How did you get 15+kg out of it? That's a massive amount of weight.

moanthebairns

18,845 posts

224 months

Sunday 19th May 2013
quotequote all
helium in the tyres

Lee540

Original Poster:

1,586 posts

170 months

Sunday 19th May 2013
quotequote all
First thing I said when I jumped on it.. "This thing is bloody heavy!"

3DP

9,991 posts

260 months

Sunday 19th May 2013
quotequote all
sfaulds said:
How did you get 15+kg out of it? That's a massive amount of weight.
Not for a 7r smile

Stainless steel and titanium system about 8 kg. Twin brake line allows deletion of a bracket and the splitter that are nearly 2kg. Alloy blanking plates replacing entire Kleanair system nearly 2kg. Rear numberplate bracket and light assembly nearly 1kg. Rear pillion pegs and hangers and bolts 1.5 kg. Lighter rear shock, carbon fibre ram air tube covers etc. Soon adds up. Kawasaki ancilleries back then were mentally heavy and over engineered. Remember they lopped nearly 45kg from the bike to race in WSB. No way could you do that with a modern bike now.

VidalBaboon

9,074 posts

241 months

Sunday 19th May 2013
quotequote all
IIRC, float bowl mod is blanking off the reed valves and 2 vacuum hoses (emission control system).

Getting the carbs to fuel properly is number 1 priority! Bloody awful things to set up and well worth a dyno session with someone that knows how to set up carbs, IMHO. Mine had dynojet needles which (depending on how early the needles are) will make the emulsion tubes go out of shape, Dynojet issued a re-call on certain batches, easiest way to tell is if has a matt finish (IIRC). If the tubes have gone oval, then you can pretty much kiss goodbye to the set- they cannot be removed & they won't fuel properly again. Factory Pro is, apparently, the way to go as the dynojet kit needles won't fuel properly until well over 5k (on the main jets) where it pulls quite hard (out-paced a TL1000S with my lardy arse on-board, just). Whether it's the profile of the needle or the specific scavenging from the aftermarket system, I don't know. I don't have any experience of the Factory Pro kit, just from what others have said on redmonkey forum.

Going back to standard carbs yielded a vanilla effect on the power delivery for me; far better around town at low revs, but ultimately lacked a higher up punch.

At the end of the day, it's an old bike; it's never going to be as good as a modern 600, so the worthwile mods should fall into 2 catagories: ones you get enjoyment from & ones for longevity. smile

If you're into your mods, there is apparently a dodgy bloke on here formerly known as CC. He has a 7R with 10R front & back end.

Edited by VidalBaboon on Sunday 19th May 22:56

Lee540

Original Poster:

1,586 posts

170 months

Sunday 19th May 2013
quotequote all
I actually want to undo all performance modifications.. sell on performance cams, refit OE parts

Get the bike cleaned up and enjoy it!

Captain Muppet

8,540 posts

291 months

Monday 20th May 2013
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I've had my ZX7R for nine years. Apart from a few little tweaks it's pretty much standard (Harris exhaust hanger to replace pillion pegs, stainless exhaust system, tail tidy, euro headlight, ZX9R mirrors and a few bits of slightly shameful cosmetic carbon).

Compared to a modern 600 it's slow and heavy, but I love it.

I ride it all year, and as a result the electrics are riddled with corroded connectors. I've had a few electrical issues as a result. Other than that I really enjoy it. I've ridden loads of other bikes and nothing else really does it for me.

cirian75

5,471 posts

259 months

Monday 20th May 2013
quotequote all
180 tyre instead of the 190 !!?!?

my old man did that to his TL1000R and it turned much better

conkerman

3,501 posts

161 months

Monday 20th May 2013
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ZX9R B motor is a pretty straight forward swap.