Jetting Database
  • User avatar
    crfsonly
    Owner
    Posts: 9651
    Joined: Thu Apr 01, 2004 3:45 pm

    Jetting Database

    by crfsonly » Mon Apr 09, 2007 5:22 am

    Please keep other info out of this thread. Only answer the questions. Copy and paste to keep format uniform.


    Year:
    Elevation:
    Temperature Range:
    Airbox Modified Top:
    Backfire Screen:
    Air Filter:
    Pilot Jet:
    Main Jet:
    Needle:
    Needle Clip Position:
    Fuel Screw Type:
    Fuel Screw Setting:
    Exhaust Type:
    Exhaust Modified:
    Last edited by crfsonly on Fri Jul 15, 2011 8:02 pm, edited 1 time in total.
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  • User avatar
    krisrtch
    Posts: 1505
    Joined: Thu Jan 04, 2007 5:46 pm

    by krisrtch » Mon Apr 09, 2007 6:32 am

    Year: 2007
    Elevation: -10ft to 50ft above sea level
    Temperature Range:55 to 95
    Airbox Modified Top: snorkle removed
    Backfire Screen:still in
    Air Filter: Twin air dual stage
    Pilot Jet:stock 42
    Main Jet: 132
    Needle: Honda power up needle
    Needle Clip Position: 3rd
    Fuel Screw Type: CRF's only
    Fuel Screw Setting: 1.75 out
    Exhaust Type: stock
    Exhaust Modified: baffle removed
    There is plenty of time to sleep when your dead....... Ride Hard!!!
    2012 CRF450R
    2010 CRF250R
    2006 CR85R
    2012 CRF50F
  • User avatar
    gal8x
    Posts: 638
    Joined: Mon Mar 12, 2007 5:36 pm

    by gal8x » Mon Apr 09, 2007 1:28 pm

    Year: 2006
    Elevation: 130ft
    Temperature Range: 55-98
    Airbox Modified Top: no snorkel or snorkel ring, SLP Flow-Rite Intake Kit
    Backfire Screen: yes
    Air Filter: Uni
    Pilot Jet: 48
    Main Jet: 132, Honda part # 99113-GHB-1320
    Needle: power up, Honda part #16012-KPS-921
    Needle Clip Position: middle
    Fuel Screw Type: Kouba [Crf’s Only]
    Fuel Screw Setting: still playing with this
    Exhaust Type: T-4 Pro Circuit
    Exhaust Modified: no spark arrester.
    Last edited by gal8x on Thu May 31, 2007 11:17 am, edited 1 time in total.
  • User avatar
    mr50
    Posts: 132
    Joined: Thu Feb 22, 2007 5:57 pm

    by mr50 » Mon Apr 09, 2007 5:01 pm

    Year: 2007
    Elevation: 500 above sea level
    Temperature Range: 55-95
    Airbox Modified Top: none
    Backfire Screen: still there
    Air Filter: stock
    Pilot Jet: stock
    Main Jet: stock
    Needle: stock
    Needle Clip Position: stock
    Fuel Screw Type: stock
    Fuel Screw Setting: stock
    Exhaust Type:stock
    Exhaust Modified : stock
  • Aussiecrf230
    Posts: 1962
    Joined: Fri Jan 06, 2006 11:11 pm

    by Aussiecrf230 » Tue Apr 10, 2007 4:56 am

    Year: 2004
    Elevation: 0-500 feet
    Temperature Range: 60 to 100 deg F
    Airbox Modified Top: Snorkel removed
    Backfire Screen: In
    Air Filter: Standard
    Pilot Jet: 42
    Main Jet: 132 winter 128 summer
    Needle: C30F Full Power Needle
    Needle Clip Position: 3
    Fuel Screw Type: Standard
    Fuel Screw Setting: 15/8
    Exhaust Type: Standard
    Exhaust Modified: Baffle out, spark arrestor in
    Ray
    Australia

    CRF230F 2004
    C30F Power Up needle
    Mains 132
    Idle 45
    2 turns out
    Baffle out, Screens In

    It starts,it runs,it gets to where all CRFs can get to without the valve or valve plate dramas
  • User avatar
    JohnnyT
    Posts: 16
    Joined: Wed Oct 04, 2006 6:18 pm

    by JohnnyT » Tue Apr 10, 2007 5:07 pm

    Year: 04
    Elevation: 6k to 7.5k
    Temperature Range: 40 to 100
    Airbox Modified Top: Snorkel removed
    Backfire Screen: In
    Air Filter: Twin Air
    Pilot Jet: 42
    Main Jet: 115
    Needle: Power-up
    Needle Clip Position: 2nd from top
    Fuel Screw Type: CRF's only
    Fuel Screw Setting: 1 1/2
    Exhaust Type: Stock
    Exhaust Modified: Baffle Removed
    Last edited by JohnnyT on Sun Aug 12, 2007 5:34 pm, edited 2 times in total.
    Happy Trails and Ride Red
  • User avatar
    Socrates
    Posts: 47
    Joined: Fri Jun 16, 2006 7:36 am

    by Socrates » Thu Apr 12, 2007 4:21 am

    Year: 2006
    Elevation: 900
    Temperature Range: 45 - 90
    Airbox Modified Top: snorkel removed
    Backfire Screen: yes
    Air Filter: Uni
    Pilot Jet: 45
    Main Jet: 132, Honda part # 99113-GHB-1320
    Needle: power up, Honda part #16012-KPS-921
    Needle Clip Position: middle
    Fuel Screw Type: Crf’s Only Fuel Screw
    Fuel Screw Setting: between 1 1/2 & 3/4 out
    Exhaust Type: T-4 Pro Circuit
    Exhaust Modified: no
    "Real men Ride Four Strokes"
    06 CRF230F
    Spider Grips
    Power Up kit(45 pilot and 132Main)
    Pro Circuit T-4 Exhaust
    Moose Competition Levers
    XGX Graphics Kit
    Maxxis IT's
  • User avatar
    13slick13
    Posts: 14
    Joined: Wed Apr 04, 2007 4:13 am

    by 13slick13 » Tue Apr 17, 2007 1:14 pm

    Year: 2006
    Elevation:400-600
    Temperature Range: -60 to 80F 40-80F when i ride.
    Airbox Modified Top: snorkel removed
    Backfire Screen: in
    Air Filter: K&N
    Pilot Jet: stock 42
    Main Jet: 132
    Needle: C30f full power needle
    Needle Clip Position: middle
    Fuel Screw Type: stock
    Fuel Screw Setting: 1 3/4 out.
    Exhaust Type: stock
    Exhaust Modified: baffle out
    "Thanks To CRF'S Only"
    2006 CRF230F
    C30F Power Up needle
    132 Main
    Airbox Snorkel out
    Big Gun Evo X Exhaust
    K&N Airfilter
    BBR rev box
    14 tooth front sprocket 47 rear.
  • User avatar
    JohnnyT
    Posts: 16
    Joined: Wed Oct 04, 2006 6:18 pm

    by JohnnyT » Mon Jun 25, 2007 11:34 am

    Year: 04
    Elevation: 5000 - 9500ft.
    Temperature Range: 40-95F
    Airbox Modified Top: snorkel removed
    Backfire Screen: in
    Air Filter: Twin Air
    Pilot Jet: 42
    Main Jet: 102
    Needle: stock
    Needle Clip Position: 2nd from top
    Fuel Screw Type: CRF's fuel screw
    Fuel Screw Setting: 2 turns out
    Exhaust Type: Stock/No Baffle
    Exhaust Modified: none

    [quote][/quote]
    Happy Trails and Ride Red
  • User avatar
    230@#)
    Posts: 57
    Joined: Thu Apr 26, 2007 7:54 pm

    by 230@#) » Tue Jun 26, 2007 6:59 pm

    Year:2004
    Elevation:330m
    Temperature Range:15-30 C
    Airbox Modified Top:snorkel removed
    Backfire Screen:untouched
    Air Filter:stock
    Pilot Jet:stock
    Main Jet:stock
    Needle:stock
    Needle Clip Position:stock
    Fuel Screw Type:stock
    Fuel Screw Setting:stock
    Exhaust Type:stock
    Exhaust Modified:baffel removed
  • User avatar
    jtcohenour
    Posts: 103
    Joined: Wed May 09, 2007 6:43 pm

    by jtcohenour » Sat Aug 11, 2007 10:41 am

    Year: 2006
    Elevation: 2000ft
    Temperature Range: 40-110
    Airbox Modified Top: Snorkel Removed
    Backfire Screen: Still In
    Air Filter: Uni
    Pilot Jet: 45
    Main Jet: 135
    Needle: Honda Power-Up C30F
    Needle Clip Position: Middle
    Fuel Screw Type: CRF's Only
    Fuel Screw Setting: Still Fine Tuning with new exhaust
    Exhaust Type: Dr. D
    Exhaust Modified:
  • RedneckDriver
    Posts: 171
    Joined: Sat Apr 07, 2007 2:24 pm

    by RedneckDriver » Wed Oct 03, 2007 7:00 pm

    Year: 2007
    Elevation: about 300-1200 ft
    Temperature Range: 30F+
    Airbox Modified Top: snorkle out, grommet in
    Backfire Screen: in
    Air Filter: K&N
    Pilot Jet: #48
    Main Jet: #132
    Needle: stock
    Needle Clip Position: stock
    Fuel Screw Type: stock
    Fuel Screw Setting: between 1.5 and 1.75 turns out
    Exhaust Type: White Bros R4
    Exhaust Modified: no
  • User avatar
    Riley
    Posts: 946
    Joined: Sun Aug 12, 2007 2:53 pm

    by Riley » Fri Mar 28, 2008 3:41 pm

    Year: 2007
    Elevation: 5,000'+
    Temperature Range: 40-100*F
    Airbox Modified Top: Snorkel/grommet removed
    Backfire Screen: Stock
    Air Filter: Stock
    Pilot Jet: Stock(42)
    Main Jet: 125
    Needle: Power UP
    Needle Clip Position: Middle
    Fuel Screw Type: Stock
    Fuel Screw Setting: Stock
    Exhaust Type: Stock
    Exhaust Modified: Baffle removed
    Do not send me to a heaven where there are no dogs.

    165 main, 42 pilot, JD Red needle 4th clip, R&D Flex fuel screw 2 turns out, open air box, FMF Q4. 4-9000ft, 50-100*
  • User avatar
    heybuddy1901
    Posts: 223
    Joined: Thu Jan 18, 2007 9:09 pm

    by heybuddy1901 » Fri Mar 28, 2008 5:54 pm

    Year: 2004
    Elevation: 0'-3000'
    Temperature Range: 35-110 F*
    Airbox Modified Top: Snorkel Removed/Left the Lip
    Backfire Screen: Stock/Unmodified
    Air Filter: UNI
    Pilot Jet: 45
    Main Jet: 120
    Needle: Stock '03-'05
    Needle Clip Position: 4th clip down
    Fuel Screw Type: Stock
    Fuel Screw Setting: 1.75 turns OUT
    Exhaust Type: BBR
    Exhaust Modified: Spark Arrestor IN
    SupermotoUSA#858
    www.Brandon858.com
    My dirtbike has slicks!
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  • User avatar
    NCFRC
    Posts: 114
    Joined: Fri Apr 25, 2008 8:40 am

    by NCFRC » Sun Jun 22, 2008 7:17 am

    Year:2005
    Elevation:0-2000 ft.
    Temperature Range:50-80
    Airbox Modified Top:yes
    Backfire Screen:yes
    Air Filter:UNI
    Pilot Jet:45
    Main Jet:135
    Needle:Honda power up
    Needle Clip Position:4th
    Fuel Screw Type:stk
    Fuel Screw Setting:1 3/4
    Exhaust Type:Powroll header with Mod can core
    Exhaust Modified:yes

    Stk 9:1 now , Wiseco 11:1 here to install
    NGK - VX platinum , nice light tan
    Final gearing , 13 / 52 , DID Race Chain
    13 year old rider

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