jetting database

Logo

    
    

jetting database

This is a discussion on jetting database within the ZR-7 Performance Upgrades forums, part of the Kawasaki ZR-7 category; We get so many questions on this, and when I first started looking a few months back I had a hard time finding what I ...

Page 1 of 4 1234 LastLast
Results 1 to 15 of 58
  1. #1
    Rising Star SureThing's Avatar
    Join Date
    May 2004
    Location
    Spartanburg, SC
    Age
    40
    Posts
    253
    Thanked
    1 times

    jetting database

    We get so many questions on this, and when I first started looking a few months back I had a hard time finding what I was looking for. So I decided to start a Jetting database. Please respond and include the following.

    Exhaust
    modified airbox
    K&N filter
    Pilot Jet
    Main Jet
    Shim / or clip
    Jet ket
    elevation (if you know it)

    Any other suggestions
    New Z750S web site.

    http://zee750s.com/zeefourm/

    Only my wifes Shadow VT750ACE right now
    Previous bikes.....
    2001 Bandit 1200S
    2000 ZR-7
    1991 Honda ST1100
    2000 DRZ 400E
    1996 DR 350

  2. #2
    Rising Star SureThing's Avatar
    Join Date
    May 2004
    Location
    Spartanburg, SC
    Age
    40
    Posts
    253
    Thanked
    1 times

    Re: jetting database

    Exhaust-Full Muzzy System
    modified airbox-yes
    K&N filter-yes
    Pilot Jet- #35, 2.25 turns out, I recomend 2.5 turns out
    Main Jet- Dynojet #104
    Shim / or clip- Clip 3 slots from the top
    Jet ket-Dynojet Stage 1
    elevation (if you know it) 850 ft

    Any other suggestions : Don't waste money on a Jet kit, simply get new jets, and shim the needles. Becareful with the #2 and #3 cylinders needles, and the emulation tubes they fit into are different then #1 and #4. My Muzzy is nice, however I recomend any aftermarket slipon but a D&D, they are too loud for me.
    New Z750S web site.

    http://zee750s.com/zeefourm/

    Only my wifes Shadow VT750ACE right now
    Previous bikes.....
    2001 Bandit 1200S
    2000 ZR-7
    1991 Honda ST1100
    2000 DRZ 400E
    1996 DR 350

  3. #3
    Supreme Being Jimmy's Avatar
    Join Date
    Dec 2001
    Location
    Malta
    Age
    64
    Posts
    1,352
    Thanked
    1 times

    Re: jetting database

    Exhaust Akrapovic
    modified airbox As per Ivan's 20 3/8" holes
    K&N filter Yes
    Pilot Jet Stock #35
    Main Jet #105 (going #102 soon)
    Shim / or clip 2nd notch
    Jet ket Ivan's
    elevation 0-900ft
    Road Rage is inversely proportional to road width.

  4. Remove Advertisements
    RiderForums.com
    Advertisements
     

  5. #4
    Silver Member shuo's Avatar
    Join Date
    Oct 2001
    Location
    livermore, ca
    Posts
    479
    Thanked
    2 times
    Exhaust - stock
    airbox - stock
    filter - stock
    Pilot Jet - 38
    Main Jet - stock
    Shim / or clip - 2 shims, 1 mm total
    Jet ket - Jarel's "partial" kit
    elevation - 0 - 1000 ft
    pilot screw - 0.75 turn

    I have ridden little more than 1000 miles with this setup, but haven't finished fiddling with idle screws yet.

    Later, if I'll have time, I plan to fit car oxygen sensor to the exhaust and fine tune carbs.

    --edit--
    Pilot screw settings were changed from 0.5 to 0.75 turns. I'm pretty happy with this set up now. I had detonation between 4000 and 5000 rpms when whacking throttle open going uphill, and now it's totally cured. Though I may try one shim insead of two. I'm getting 48 mpg cruising and riding twisties and 40 mpg on my commute, half of it are city streets, half freeway.
    Last edited by shuo; 08-15-04 at 12:56 AM.
    Alex

  6. #5
    Silver Member javasutra's Avatar
    Join Date
    Feb 2003
    Location
    Nicholasville KY, USA
    Age
    48
    Posts
    1,941

    Re: jetting database


    Exhaust - Jardine slip-on with street baffle
    modified airbox - 20 3/8 holes per Ivan's diagram - stock filter
    K&N filter - not currently
    Pilot Jet - stock
    Main Jet - 105 with Ivan's kit
    Shim / or clip - e-clip at 3rd notch with three shims on top
    Jet ket - Ivan's
    elevation (if you know it) - around 900 feet

  7. #6
    Johnny Blue Lightnin'
    Supporting Member
    JonF's Avatar
    Join Date
    Mar 2002
    Location
    Felton, DE
    Age
    53
    Posts
    12,117
    Thanked
    116 times
    Exhaust: "Two Brothers Racing" slip on
    Modified airbox: No, just white silencer removed
    K&N air filter: Yes
    Pilot Jet: #38, Idle screws set at 2 turns out
    Main Jet: Stock #108
    Shim/E clip: One .5mm shim on each needle
    Jet Kit: "Motospecialties" partial rejetting kit (discontinued)
    Elevation: Near sea level at home. Up to 3900 feet for fun.
    Also have a 4° ignition advance.

    Notes: I get 43 - 46 mpg with this setup. Starts nicely when cold. Linear acceleration, no flat spots or hesitations.

    I have now gone back to stock exhaust. I removed the .5mm shims and sanded them down to .4mm. I also reset the idle mixture screws to 1 7/8 turns out.

    I have decide to keep the stock exhaust and have gone back to stock jetting.
    The off idle hesitation is back even though I've got the mixture screws set at 2.5 turns out. I'm hoping for an mpg increase.

    Getting 46-50mpg all stock.

    Going back to modded. Jardine street baffle, #38 pilots, pilot screws at 1.75 turns, K&N, drilled airbox as soon as I have time.
    Last edited by JonF; 09-07-06 at 08:32 PM.
    Jon

    2010 Triumph Tiger 1050
    2005 Yamaha FJR 1300 ABS Sold
    2000 ZR-7 - Sold and still missing it
    2001 KLR 650 - Gone but not forgotten
    2001 King Quad 300
    Riderforums Moderator

  8. #7
    Site Elder pattonme's Avatar
    Join Date
    Jul 2002
    Location
    Alexandria, VA
    Posts
    900
    Thanked
    5 times
    Exhaust: Jardine street

    modified airbox - 6 holes (3/8"?) and no 'snorkel'. The lower half of the lid with fingers that sticks down to hold the filter element in place is all that's there.

    K&N filter - yup
    Pilot Jet - stock
    Idle Mixture - 2.5turns
    Main Jet - DJ104 (Keihin 110)
    Shim / or clip - 2 from top +1 shim on inner cylinders
    Jet ket - DJ
    elevation (if you know it) - Chicago

  9. #8
    Gold Member Mustang's Avatar
    Join Date
    Apr 2004
    Location
    Bastrop, TX
    Age
    53
    Posts
    78
    Holeshot Slip-on
    FactoryPro Ignition Advance
    K&N Air Filter

    Ivan's Jet Kit [the folloing bullets are per the kit instructions]
    --- EGR Removed
    --- 20, 3/8" holes in top of air box, rest of box and filter is stock
    --- #105 Keihin Mains
    --- Custom Needles (e-clip on #1, 1 shim below)
    --- Mixture Screws out 2.5

    Elevation: ~130 ft
    MPG: 45+ mpg avg

    I suspect with the new addition of the K&N filter I'll be re-setting the needles to #2 - #3. It does run good, but a touch leaner then I think I'd like in the mid-range. But we'll see.

    Mustang

    EDIT: Replaced stock air filter with a K&N filter listed above
    Last edited by Mustang; 04-10-05 at 06:48 AM.
    ZR7OA Member#: 1005
    2003 ZR-7s, Pearl Chrome Yellow <- Man, it's just YELLOW!

    Performance Modifications: EGR-ectomy, FactoryPro Ignition Adavance, Ivan's Performance Jet/Needle Kit, Holeshot Slip-on, #15 Front Sprocket
    Other Modifications: New Paint (Medium Cherry Red Metallic), Strip/Polish Rims, Side Panel Screens, ZeroGravity ST Screen (smoke)
    Considering: Spending some time just riding and generally enjoying what all I've been fooling around with.

  10. #9
    Supreme Being Jimmy's Avatar
    Join Date
    Dec 2001
    Location
    Malta
    Age
    64
    Posts
    1,352
    Thanked
    1 times

    Re: Re: jetting database

    Originally posted by Jimmy
    Exhaust Akrapovic
    modified airbox As per Ivan's 20 3/8" holes
    K&N filter Yes
    Pilot Jet Stock #35
    Main Jet #105 (going #102 soon)
    Shim / or clip 2nd notch
    Jet ket Ivan's
    elevation 0-900ft
    Change above to:
    Main Jet #102
    Clip on 1st notch and .5mm shim under clip.
    Road Rage is inversely proportional to road width.

  11. #10
    Rising Star SureThing's Avatar
    Join Date
    May 2004
    Location
    Spartanburg, SC
    Age
    40
    Posts
    253
    Thanked
    1 times
    Lets bump this puppy up.
    New Z750S web site.

    http://zee750s.com/zeefourm/

    Only my wifes Shadow VT750ACE right now
    Previous bikes.....
    2001 Bandit 1200S
    2000 ZR-7
    1991 Honda ST1100
    2000 DRZ 400E
    1996 DR 350

  12. #11
    Gold Member aralr's Avatar
    Join Date
    Feb 2002
    Location
    Tarrytown, New York
    Age
    52
    Posts
    947
    Exhaust:Two Brothers slip on
    Modified airbox: KZ750 lid with 6, 1/2 holes
    K&N air filter: Yes
    Pilot Jet: #38, Idle screws set at 1 and 2\6 turns out
    Main Jet: Stock Keihin #110
    Shim/E clip: tWO .5mm shims
    Jet Kit: "Motospecialties" jetting kit
    Elevation: 0-3500 feet
    FactoryPro Ignition Advance
    "Nothing in the world is so exhilarating as to be shot at without result". Winston Churchill ------- Just Ride!

    Alex
    ZR7OA Member#: 262
    ZR-7S 2001

  13. #12
    Up-And Comer slowpoke's Avatar
    Join Date
    Aug 2003
    Location
    claremore, OK
    Age
    55
    Posts
    134
    Exhaust-Jardine street baffel
    Jet kit- Ivans
    Jets-105
    Needles-Ivans, clip on 2nd notch
    Airbox- 20 3/8 holes per Ivans

    Pilot screws- 2.75 turns out
    Air filter-K&N
    Ignition advancer-Factory pro


    I get about 45mpg and its VERY responsive. Very happy with this setup.

  14. #13
    Site Elder ariszr7's Avatar
    Join Date
    Oct 2001
    Location
    Athens, Greece
    Age
    50
    Posts
    965
    Exhaust - Devil Silencer (Race)
    Modified airbox - Only the lower part of the lid currently
    K&N filter Yes
    Pilot Jet Kawa #37
    Main Jet Kawa #112
    Shim - 1 shim of 0.5mm per needle
    elevation 0-1000ft
    Pilot Screws - 2.5 turns

    It runs OK but I think it could be better at low revs with some more experimenting.

    Aris
    ZR7OA#24

    bimota SB6 1995

    Honda Hornet 900 2005
    Yamaha SR500 1983 Thumper
    BMW R75/6 1975
    BMW R26 1957

  15. #14
    Rising Star molebaby's Avatar
    Join Date
    Aug 2002
    Location
    On the road to an altered state
    Posts
    234
    Exhaust Muzzy full system
    K&N airfilter, silencer P?N 39161-1078 removed
    Pilot jets #35 stock
    Main jets # 115 Keihins going to #112.5 soon
    Needle clip postion #3 from top
    Mixture screw 1 3/4 turns out
    EGR removed
    Elavation 1350 ft.
    Dyno jet kit as starting point
    MPG low 30s lousy
    Flat spot between 4,000 / 5,000 RPM.
    Accelarates hard when ridden hard

    A work in progress
    Joe-R

  16. #15
    Site Elder Darkjedip's Avatar
    Join Date
    Jun 2004
    Location
    Concord, CA
    Age
    38
    Posts
    582
    Exhaust - Gianelli Silencer (straight through)

    modified airbox - Nope

    K&N filter - Nope

    Pilot Jet - Stock

    Main Jet - Stock

    Shim / or clip - None

    Jet ket - Nope

    elevation (if you know it) 70ft above sea level

    Mixture screws at 2.5 turns out. Bike's a little lean, but not very noticeable vs. stock pipe. Makes around 46-54mpg depending on speed.
    DL-650AK8
    1977 Bonneville T140V Project

    Previous:
    2006 DL-1000
    2003 Kawasaki ZR-7S
    2003 Kawasaki Ninja 250

    Aspiring Moto-journalist needs feedback:
    http://nowheelieshere.blogspot.com

Page 1 of 4 1234 LastLast

Remove Ads

Sponsored Links

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Search tags for this page

2000 kawasaki xz 750 jetting for 5000 ft
,
2008 klr 650 main jet size
,
bandit 1200s stock jets
,

drz 400 jetting database

,
drz jetting database
,
factory pro performance jets parts zrx 1200
,
klr650 main jet size
,
ninja 250r dynojet without drilling slides
,
what is the standard main jet size for a klr 650
,
what stage jet kit for motorcycle below 1000 ft elevation
Click on a term to search for related topics.