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Old 08-10-2003, 09:45 PM   #1
Ninjadude
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Default ZX7R Float bowl mod.

Anyone done this mod to their '96 and up 7R. I did it yesterday, and it seemed to make the throttle response at higher RPMs more crisp, and a touch more power too. Just wondering what anyone else with this mod has observed.
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Old 08-11-2003, 05:29 AM   #2
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Which mod do you mean, and where did you get the info? I've done just about every mod for the 7R except for the 9 engine swap, which I'm still looking for a good engine somewhere.
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Old 08-11-2003, 11:51 AM   #3
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I did it when I put the ZX-9 engine in. Seemed to do OK, but I did it when I put the engine in, so I really didn't have any baseline performance to gauge the mod.

Highside - he's referring to the removal of the emmissions equipment. There was an expert (Ken Waters) on the ZX-7 Owners Club site who detailed the mod and called it the float bowl mod since you have to reroute the float bowl vents to the airbox to get this type of thing to work right on the ZX-7.
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Old 08-11-2003, 02:56 PM   #4
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This is the first i hear of putting a zx9 engine in the 7. What kind of difference does it make? Does the bike come up easier? Top speed differences? Sounds like a great idea.
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Old 08-11-2003, 05:35 PM   #5
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Quote:
Originally posted by SkyDork
I did it when I put the ZX-9 engine in. Seemed to do OK, but I did it when I put the engine in, so I really didn't have any baseline performance to gauge the mod.

Highside - he's referring to the removal of the emmissions equipment. There was an expert (Ken Waters) on the ZX-7 Owners Club site who detailed the mod and called it the float bowl mod since you have to reroute the float bowl vents to the airbox to get this type of thing to work right on the ZX-7.

SkyDork,

What about bikes that don't have emmissions equipment?

Is there a place that has this mod detailed?

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Old 08-11-2003, 08:39 PM   #6
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highside.......skydork is right, that is the mod. I am referring to. Just out of curiosity, what mods do you have done to your 7r?
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Old 08-12-2003, 02:20 PM   #7
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Quote:
Originally posted by frontside720
This is the first i hear of putting a zx9 engine in the 7. What kind of difference does it make? Does the bike come up easier? Top speed differences? Sounds like a great idea.


If you want more info. on this, contact Rye on nestreetriders.com He's running a 9 in a 7...
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Old 08-13-2003, 12:02 PM   #8
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You can also go to the following link and get more info. on both the "float bwol mod" and my conversion of the ZX7 with a ZX9 motor.

www.geocities.com/webzxr

In a nutshell, the mod is to remove all of the emmissions equipment from the top of the engine, cap off the reed valve ports, and vent the float bowl chambers straight back to the airbox. This mod is supposed to add a small amount of Hp and drop a little weight at the same time. It's a pretty easy and cheap mod for the -7R.
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Old 08-13-2003, 12:05 PM   #9
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Stone-

If your bike doesn't have emmissions equipment, then the mod might already be done on your bike. Just check the link in the post above for more detailed information.
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Old 08-13-2003, 06:56 PM   #10
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Thanks, I will.

Yep, I have 1999 ZX-7R (non-Cali). As far as I can tell I have no emmissions stuff on it, i.e charcoal canister, etc. Especially since I have a full Muzzy exhaust on it too.


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