Kawasaki Ninja ZX Forum banner

1 - 20 of 21 Posts

·
Registered
Joined
·
4 Posts
Discussion Starter #1
Hi

New to site, we have a racing ZX7RR which we bought new from Canada in 1996.The Canadian model was of a higher spec than UK model.
Recently I have found that accel jets by bell mouths are not working and I think problem is with O ring on float bowl accel pump.
1 In service manual it says there should be 2 pumps on middle two float bowls, my one has one. ?
2 It also says that the Keihin Flatslides should be 41mm, my one has 42mm. ?
3 I am also after a plastic green 20mm velocity stack for above.
Can anyone help . Thanks

Ronnie
 

·
Premium Member
Joined
·
2,387 Posts
I also own a 96 7RR and the flat slide carbs are indeed 41mm. Mine also has one accelerator pump per carb and I'm not sure what manual you have but the one I use is from Kawasaki. Can't help you with the velocity stack as I kinda need mine.
 

·
Registered
Joined
·
674 Posts
I'm not sure why you guys only have 1 accelerator pump. My RR DEFINATELY has two on float bowls 2 and 3. If your carbs don't have two then either someone replaced a float bowl or your carbs arn't original RR carbs.

Another way to tell if your carbs are original is to look at the drail plugs. If your drain plug looks like a big hex bolt then your float bowls (and likely your carbs) arn't original RR carbs... not that there's anything wrong with that. FCRs are FCRs right :)



ninjanut, I'm in Mississauga. Do you still have your RR? If you do, we should ride some time. It would be badass to see two of em together :)

Ronnie, you can try ordering some from Winners Circle Canada or Sudco. I get all my stuff from Winners Circle. I know they have 30mm and 50mm stacks for $64 each but I don't think they have the 20mm :(
 

·
Premium Member
Joined
·
2,387 Posts
I do still have the RR but it would get me into some trouble to ride it on the street as it is purely a track bike (no lights, race plastics,slicks...). I do not know if maybe we just see this differently or not but mine have one pump only. The float bowls pictured do look like mine but Kawi calls the whole assembly one accelerator pump. Mine have had mods done but all done by me so nothing weird. Maybe it is just that I am used to having it referenced as a single unit. Probably just a terminology thing. Either way, love my sevens!
 

·
Registered
Joined
·
674 Posts
Hmmm... I guess Kawi's terminology is a little confusing. Conventionally each one of those round things is an accelerator pump.

Do you have a little electronic gizmo that the FCR's attach to? Do you have any idea what that is?
 

·
Registered
Joined
·
4 Posts
Discussion Starter #6
42mm Flatslides

Thanks for all the replies,but still no further with the quest for identification or vel stack.
The float bowl drain plugs are indeed Hex heads so i guess they may be after market.
Also these are 42mm bores not 41mm.
Thanks

Ronnie
 

·
Premium Member
Joined
·
2,387 Posts
What you have pictured is the accelerator pump on the bottom of each float bowl (#2 and #3 ). There is one per, total of two. I read into dfar's post that he thought that there was two per carb? Maybe he mistook the drains for another pump?? Sounds like he definitely has aftermarket FCRs. I know the older 7Rs had FCRs with hex drain plugs on them. Does this gizmo have two hoses off it (one to the #1 and #3 units and one to the #2 and #4 )? If so, that is called the fuel enricher solenoid valve.

:crazyloco
 

·
Registered
Joined
·
674 Posts
Does this gizmo have two hoses off it (one to the #1 and #3 units and one to the #2 and #4 )? If so, that is called the fuel enricher solenoid valve.
Right thats what the manual says too... but what IS it? Like what does it do? At first I thought it was something to do with the accelerator pumps but it turns out the accelerator pumps work fine when this thing is disconnected. Furthermore, none of it seems to be connected to fuel lines?!

BTW are you the guy selling your RR on Kijiji right now?
 

·
Premium Member
Joined
·
2,387 Posts
It opens when the igniter signals and allows air flow up into the carbs and to the accelerator pumps. I am not 100% certain of its detailed functions but it is necessary for sure with these FCRs. Disconnected mine once and the bike wouldn't take hard snap of the throttle.
:headscratch

Also, it is not me selling my RR...Never gonna happen!
 

·
Premium Member
Joined
·
2,387 Posts
BTW are you the guy selling your RR on Kijiji right now?[/QUOTE]

Just FYI. checked out the add on Kijiji and it doesn't smell right to me. Looking at the photo, it is strategically taken so that the swing arm pivot, nissin brakes and other details are hidden. Also, a green and a white wheel??... and the most concerning is the rear sub-frame is definitely off a 7R (has peg mount on left side). I have seen a few clowns try to rebuild a 7R and add a tail, some FCRs,Nissin brakes and then try to pass it off as an RR. I would definitely want to check the title and numbers on this if you are considering buying. I have actually seen examples where it is very hard to tell but they usually miss something (like the igniter unit being different). If it is an RR, it may have been crashed or dropped (probably crashed if sub-frame was replaced). Just my two cents in case you are considering it.

:scared
 

·
Registered
Joined
·
674 Posts
Nah I'm happy with the one I have although I did have it posted for a while last year. Although in the other seller's defense, he did have more pics in an older ad and the swingarm pivot at the very least was correct. It did used to be a track bike thou so theres some chance the subframe was obliterated.

On the subject of the fuel enricher... aftermarket FCRs (as opposed to factory equipped ones) don't have this... I wonder how they manage without it? My factory shop manual doesn't make any significant mention of this component at all :(
 

·
Premium Member
Joined
·
2,387 Posts
I have the factory manual and there is only a brief mention of it and how to test it. I was told by a factory tech that it is necessary if you want maximum performance from FCRs. Probably more an issue if the bike gets mods. Not sure what you have done to yours (if anything). Mine was raced by me since new and I have kept it in mint condition. Had one very slow get off when bumped off track and landed on grass- broken foot rest. Just use it now for more competitive track days and will probably race it again when it is twenty years old (VRRA). I do have a 7R as well for the street and would possibly hook up for a ride this spring/summer and compare notes.
 

·
Registered
Joined
·
674 Posts
I wonder if the valve is adjustable/programmable then?

Have you done any mods to your bike?

Mine is bone stock except for a high mount hindle (yes I know, gross :angry). I bought it in the middle of last year and haven't had a chance to do anything with it at all. The bike came up out of the blue and burst my entire annual bike budget.

Currently, the bike is dirty as hell but in decent condition otherwise. It needs new tires, and a good carb cleaning (which I'm doing now). To make it more street friendly I may swap a regular R motor (I have a few lying around) into it or gear it for more torque. I'd also like to either get forged wheels or a full akrapovic this year... and radial master cylinders.

I'm the 3rd official owner. I wish I could have gotten one of these when it was new but when mine was sold to its first owner, I was 10 :rolleyes
 

·
Premium Member
Joined
·
2,387 Posts
It is not adjustable nor programmable. It is wired to the igniter, which is not programmable either. I do have an aftermarket CDI on my bike (which is programmable) as well as a ton of engine mods. I was very into racing amateur when I bought it and actually bought a 7R at the same time for the street (was single and making good money...). I would never consider getting rid of either bike as they both are enough bike for me and my abilities. If I could find another RR at a reasonable price (and in decent shape) I would probably buy yet another for the street. The way mine is right now, I cannot afford to put it on the street with insurance (on top of the 7R). So for now it gets track duties whenever I can get out (usually 3-4 times per season).
As for yours, would you run the FCRs on the 7R motor? Any other mods in the works?
 

·
Registered
Joined
·
674 Posts
You have the Dyna2000 kit? Ignition? Coils? Leads? Pickup etc?

Yeah I'd run FCRs on the 7r motor. Can't see why it would cause problems. Same top end between the two right? The bottom of the RR has a different crank but it doesn't affect the stroke. I just want to take it easy on the close ratio gearbox and the tall 1st gear is a pain for right hand 90 degree corners anyways.

Nothing else in the works except putting some new seals on the FCRs. I'm also replacing all the old fuel lines with aftermarket lines. Some of the lines are getting hard and cracking and god knows what kind of crap is getting dissolved in the fuel because the filter looks like a solid chunk of mud :angry
 

·
Registered
Joined
·
252 Posts
I have the 39 FCRs on my J and I love the responsiveness of these carbs I won’t be going back to CV carbs anytime soon.

Where is this RR on kijiji I can’t seem to find it???
 

·
Premium Member
Joined
·
2,387 Posts
The kit that I have was a kit through Kawasaki Canada and it has the CDI, coils, leads, pick up, harness, gear driven cams (with slotted sprockets) and a pile of motor parts (pistons, valves and cams). I am running a full Muzzy system and a Factory jet kit matched to the system and mods.
I know what you mean with the 1st gear, it is a pain. The only difference with the crank is the flywheel. I thought about the FCRs for my 7R but for the cost, I do not think they would be worth it. Are you the second owner or was there a few before you? My 7R gets a tear down every winter and I give it the once over (clean, lube, fork oil, shock...) so that it's ready to go in spring. My RR is stored in a heated shop about two hours away so I do not work on it much over the winter. It is always ready to go though.
 

·
Registered
Joined
·
674 Posts
OMG you have some rare pieces of kit there bro. I didn't think you'd actaully have the factory Kawasaki race kit stuff! Good call on picking that shit up when it was available. Now they are super had to come by and when they do, cost a fotune. Have you got pics of your bike?

I'm the third official owner of the RR. I would have liked to owned it from new but like I was saying earlier when my RR was bought by its first owner, I was like 10 years old :p
 
1 - 20 of 21 Posts
Top