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Old 04-16-2010, 05:42 AM   #1 (permalink)
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Factory pro jet kit ... doubt

Hi

Today I bougth a factory pro jet kit stage 1 for my zx7r P3.

But they came with 4 diferents main jets

What size I should use? (1/4 - 2/3 cylinders)

My bike has a stock air filter without screem, after market exhaust (open) and float bowl mod.

Iīm following this guide
http://www.jonesisland.com/7r/motor/


Thanx and sorry my english

Last edited by jjbartbrazil; 04-16-2010 at 05:54 AM.
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Old 04-16-2010, 06:49 AM   #2 (permalink)
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Didn't the kit come with instructions?
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Old 04-16-2010, 06:57 AM   #3 (permalink)
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Quote:
Originally Posted by jjbartbrazil View Post
Today I bought a factory pro jet kit stage 1 for my zx7r P3.

But they came with 4 different main jets
Of course it did. That way you can tune it to your desired power characteristics. You'll also notice that the jet needles have a clip. They're adjustable too.

CLICK HERE and follow their CV carburetor tuning procedure.

Good luck!
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Alright! Trading bikes for a while was fun.I'm ready for mine back. No, seriously, get off my bike. Ahh, what a sweet ride.
At the track she's outclassed, but on the street, she reigns unmatched. She's the only big-bore canyon carving hypermiler I know of. -- Picture gallery, K&N air filter, SuperTrapp Aluminum Racing Series exhaust (Made in USA), ZG touring shield, & otherwise stock. Highest observed speed: 167 MPH @ ~4,800' AMSL.
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Old 04-16-2010, 07:15 AM   #4 (permalink)
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Quote:
Originally Posted by AZXRider View Post
Didn't the kit come with instructions?
Yes, but it donīt explain why the diferents size.

I will install the smaller, because I read in some place to do it.
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Old 04-16-2010, 07:16 AM   #5 (permalink)
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Quote:
Originally Posted by e1_ZX-9r View Post
Of course it did. That way you can tune it to your desired power characteristics. You'll also notice that the jet needles have a clip. They're adjustable too.

CLICK HERE and follow their CV carburetor tuning procedure.

Good luck!
No needle on this jet kit ... just springs and jets.
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Old 04-16-2010, 07:36 AM   #6 (permalink)
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I have heard that their customer service is really good. I did not need them myself, but if you contact them and give them your set up, I bet they would give you good advice on where to start.
Good Luck.
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Old 04-16-2010, 08:32 AM   #7 (permalink)
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Just like 9r's link suggests tune it from the top down, what jet sizes do you have and is your pipe a full exhaust or an end can?
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Old 04-16-2010, 07:55 PM   #8 (permalink)
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Quote:
Originally Posted by jjbartbrazil View Post
Yes, but it donīt explain why the diferents size.

I will install the smaller, because I read in some place to do it.
Stock jetting is 170-180-180-170, so to go leaner you'll use the 168-178-178-168 jets. The two inner carbs run hotter, so that's why they need the larger jets. If you needed to go richer than stock, then you'd use the 172-182-182-172 jets. It all depends on your bike, its mods and the environment where you normally ride.
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Old 04-17-2010, 06:51 AM   #9 (permalink)
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Only end-can

Here is the manual
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Old 04-17-2010, 08:03 AM   #10 (permalink)
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I think you may be searching for a sure answer as to what settings/jets to set yours at. That's not the way tuning works and that's intentional, because every bike will be subtly different. So the only way to tune is by trial and error. Analyze how it's three fuel circuits are running (low-mid-high) and alter them one at a time, starting from the mains and working your way down, as the Factory Pro CV carb tuning procedure recommends. Smaller jets are lean, bigger are richer.
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Alright! Trading bikes for a while was fun.I'm ready for mine back. No, seriously, get off my bike. Ahh, what a sweet ride.
At the track she's outclassed, but on the street, she reigns unmatched. She's the only big-bore canyon carving hypermiler I know of. -- Picture gallery, K&N air filter, SuperTrapp Aluminum Racing Series exhaust (Made in USA), ZG touring shield, & otherwise stock. Highest observed speed: 167 MPH @ ~4,800' AMSL.
Science & OODA literate. ACA covered.
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Old 04-19-2010, 07:28 AM   #11 (permalink)
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Start lean since we already know these bike are to fat to begin with so jets go 168/172 with the new emulsion tubes, I'd set the pilot screw at 2 1/2 turns and work back if necessary even though they say 2, and set your floats at 15.5mm. Did you get new slide springs with that kit? if so use them instead of shimming the needles.
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Old 04-20-2010, 12:47 PM   #12 (permalink)
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Quote:
Originally Posted by AZXRider View Post
Start lean since we already know these bike are to fat to begin with so jets go 168/172 with the new emulsion tubes, I'd set the pilot screw at 2 1/2 turns and work back if necessary even though they say 2, and set your floats at 15.5mm. Did you get new slide springs with that kit? if so use them instead of shimming the needles.
Yes, it came with 4 slide spring ... I will do your setup.
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Old 04-22-2010, 10:21 PM   #13 (permalink)
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what site did you order your kit from?
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Old 04-23-2010, 05:35 AM   #14 (permalink)
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Quote:
Originally Posted by compton89zx7r View Post
what site did you order your kit from?
Hi ... I bought on eGay ... Seller is worldwide_motorcycle_equipment
But factorypro.com sell it on line too
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Old 04-24-2010, 12:38 PM   #15 (permalink)
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if you can't lean it out the guys at fac pro will also ship you some leaner needles. when I was done with mine it was set at 16mm 2 turns and 168-178-178-168. runs like a champ..

but take your time setting it up and get it right.. I had multiple settings befor eI got it right.. if you follow the pink sheet that comes with the kit you'll be fine.. just don't skip steps and have a clear idea of what rich feels like over lean..
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