Index: Carb Jetting Database
  • User avatar
    KevinM
    Posts: 474
    Joined: Tue Mar 14, 2006 12:21 pm

    by KevinM » Fri Jun 15, 2007 1:06 pm

    Year: 2005
    Elevation: 100-400 MSL
    Temperature Range: 30-90 Deg F
    Smog (AIS): N/A
    Airbox Modified Top: yes
    Airbox Modified Sides: no
    Backfire Screen: TwinAir Power Flow Frame
    Air Filter: TwinAir
    Pilot Jet: 42
    Main Jet:162
    Needle: JD Red
    Needle Clip Position: 5th from top
    Fuel Screw Type: CRFsOnly
    Fuel Screw Setting: 2 turns out
    AP Modified: no
    Leak Jet: Stock
    AP Cover: Stock
    Exhaust Type: White Bros E2
    Exhaust Modified:
    Pink Wire Modified: no
    09 CRF 450R
    07 CRF 250R
    45 plt /175 main /JD Red-5th pos
    FS 2 trns
    05 CRF 250X
    42 Plt /162 Main /JD Red Needle- 5th pos
    CRFsOnly Fuel Screw 1-7/8 trns out (2 turns winter)
    TwinAir PowerFlo Kit /Opened Airbox /White Bros E2
  • billk
    Posts: 8
    Joined: Mon Aug 20, 2007 10:11 am

    by billk » Tue Sep 04, 2007 5:23 pm

    Year: 2006
    Elevation: 800 – 1,200
    Temperature Range: 85F – 96F
    Smog (AIS): stock
    Airbox Modified Top: 3” square
    Airbox Modified Sides: No
    Backfire Screen: Stock
    Air Filter: Moose
    Pilot Jet: 45
    Main Jet: 155
    Needle: NCYQ (Honda part 16202-MEN-671)
    Needle Clip Position: 4th (middle)
    Fuel Screw Type: Factory R&D
    Fuel Screw Setting: ½ - 3/4
    AP Modified: No
    Leak Jet: 55 (Honda part 99108-MEB-0550)
    AP Cover: Factory R&D
    Exhaust Type: Stock
    Exhaust Modified: Baffle removed
    Pink Wire Modified: No

    Could go to 158 main.
    No bog.
  • racer105x
    Posts: 38
    Joined: Tue Feb 06, 2007 9:20 pm

    by racer105x » Mon Sep 17, 2007 6:26 pm

    Year:2005
    Elevation:6500-9500
    Temperature Range:68 to 95
    Smog (AIS):N/A
    Airbox Modified Top:yes
    Airbox Modified Sides:no
    Backfire Screen:removed
    Air Filter:Uni
    Pilot Jet:42
    Main Jet:158
    Needle:JD
    Needle Clip Position:3rd from top
    Fuel Screw Type:MSR
    Fuel Screw Setting:2 1/4
    AP Modified:
    Leak Jet:stock
    AP Cover:
    Exhaust Type:FMF Powerbomb/Fmf Poewercore silencer
    Exhaust Modified:
    Pink Wire Modified:yes
  • redrooster65
    Posts: 576
    Joined: Tue Sep 05, 2006 4:37 pm

    by redrooster65 » Sat Oct 27, 2007 12:35 pm

    It has always been fat, planning a Colorado trip so I leaned out the main while it was apart for the topend.

    Runs crisp with o bog.

    Year: 2004
    Elevation: 4,000 - 9,000
    Temperature Range: 50 - 100
    Smog (AIS): No
    Airbox Modified Top: Yes
    Airbox Modified Sides: No
    Backfire Screen: Yes
    Air Filter: Stock
    Pilot Jet: 42
    Main Jet: 155 now 150
    Needle: Red
    Needle Clip Position: 4th
    Fuel Screw Type: CRF's Only
    Fuel Screw Setting: 1 3/4 now 1 1/2
    AP Modified: No
    Leak Jet: 55
    AP Cover: No
    Exhaust Type: Stock
    Exhaust Modified: Drilled
    Pink Wire Modified: Yes
  • Toobie
    Posts: 50
    Joined: Tue Dec 06, 2005 7:37 am

    Re: HOW TO: CARB JETTING DATABASE

    by Toobie » Wed Nov 21, 2007 4:01 am

    [b]Year: 2005
    Elevation: 400'-1200'
    Temperature Range: 45-95 F
    Smog (AIS): N/A
    Airbox Modified Top: cut 3"x3"
    Airbox Modified Sides: no
    Backfire Screen: stock
    Air Filter: Ready Filter
    Pilot Jet: 42
    Main Jet: 155
    Needle: stock
    Needle Clip Position: 4th
    Fuel Screw Type: stock
    Fuel Screw Setting: 2 turns
    AP Modified: no
    Leak Jet: stock
    AP Cover: stock
    Exhaust Type: stock
    Exhaust Modified: drilled 3/4"
    Pink Wire Modified: no
    '05 CRF250X
    Kibblewhite Stainless Intake Valves
    WC skidplate
    Acerbis Brush Handguards
    cut airbox/155main/42 pilot/clip on 4th pos.- hauls butt, no bog
    fuel screw 2 turns out
    900'MSL
    '05 CRF80F (son's)
    '06 KTM 105 SX (son's)
  • User avatar
    CRF_Rod
    Posts: 46
    Joined: Wed Dec 05, 2007 6:24 am

    by CRF_Rod » Wed Jan 02, 2008 2:19 pm

    Year: 2006
    Elevation: 950'
    Temperature Range: Winter now 30-40
    Smog (AIS): N/A
    Airbox Modified Top: No
    Airbox Modified Sides: No
    Backfire Screen: Yes
    Air Filter: Stock
    Pilot Jet: 42
    Main Jet: 152
    Needle: JD Red
    Needle Clip Position: 5th
    Fuel Screw Type: CRF's Only
    Fuel Screw Setting: 2 1/4
    AP Modified: JD kit large O-ring
    Leak Jet: Stock 55
    AP Cover: Stock
    Exhaust Type: Stock
    Exhaust Modified: No
    Pink Wire Modified: No

    Bike runs perfect!
    06 CRF250X, 06 CR125, 08CRF230L

    Image
  • User avatar
    BadCarma505
    Posts: 28
    Joined: Thu Nov 22, 2007 8:59 pm

    by BadCarma505 » Sat Jan 12, 2008 8:12 pm

    Year: 2006
    Elevation: 10-100 feet
    Temperature Range: 60-100
    Smog (AIS): no
    Airbox Modified Top: yes
    Airbox Modified Sides: no
    Backfire Screen: yes
    Air Filter: stock
    Pilot Jet: 42
    Main Jet: 158
    Needle: JD red needle
    Needle Clip Position: 5th from top
    Fuel Screw Type: Stealth Racing
    Fuel Screw Setting: 1 1/4 turns out
    AP Modified: yes, small o-ring
    Leak Jet: stock
    AP Cover: stock
    Exhaust Type: stock
    Exhaust Modified: baffles & discs removed
    Pink Wire Modified: No
    Last edited by BadCarma505 on Wed Mar 19, 2008 4:19 pm, edited 1 time in total.
  • gprove
    Posts: 18
    Joined: Fri Jul 06, 2007 3:26 pm

    by gprove » Mon Mar 03, 2008 6:11 pm

    Year: 2006
    Elevation: 0-4000
    Temperature Range: 35-90
    Smog (AIS): stock
    Airbox Modified Top: yes
    Airbox Modified Sides: no
    Backfire Screen: no
    Air Filter: stock
    Pilot Jet: 42
    Main Jet: 158
    Needle: JD red
    Needle Clip Position: 5
    Fuel Screw Type: CRFonly fuel Screw
    Fuel Screw Setting: 2 turns out
    AP Modified: NO
    Leak Jet: stock
    AP Cover: no
    Exhaust Type: stock
    Exhaust Modified: no
    Pink Wire Modified:no

    JD kit RIPS!!!!
  • Motown250X
    Posts: 110
    Joined: Sun Dec 16, 2007 12:29 pm

    by Motown250X » Sun Mar 09, 2008 7:32 pm

    Year: 2007
    Elevation: 0-3000
    Temperature Range: 60-100
    Smog (AIS): Removed with XR's only block off
    Airbox Modified Top: Yes
    Airbox Modified Sides: No
    Backfire Screen: Yes
    Air Filter: Stock
    Pilot Jet: 42
    Main Jet: 160
    Needle: JD red
    Needle Clip Position: 5th
    Fuel Screw Type: JD
    Fuel Screw Setting: 1.5 turns out
    AP Modified: No
    Leak Jet: Stock
    AP Cover: Stock
    Exhaust Type: Stock header with 250R muffler
    Exhaust Modified: PMB sparky
    Pink Wire Modified: No
    Last edited by Motown250X on Mon Oct 17, 2011 12:04 pm, edited 1 time in total.
    2007 CRF250X
    2008 CRF250R
    2011 CRF450R
  • jtmach1
    Posts: 83
    Joined: Fri Feb 01, 2008 10:57 am

    by jtmach1 » Wed Mar 26, 2008 12:03 pm

    Year: 2006
    Elevation: 0-3,000
    Temperature Range: 50-90
    Smog (AIS): stock
    Airbox Modified Top: yes
    Airbox Modified Sides: stock
    Backfire Screen: stock
    Air Filter: ready racing
    Pilot Jet: 45
    Main Jet: 165
    Needle: JD red needle
    Needle Clip Position: 5th position
    Fuel Screw Type: Zip tye
    Fuel Screw Setting: 2 turns out
    AP Modified: no
    Leak Jet: stock
    AP Cover: stock
    Exhaust Type: Full R exhaust
    Exhaust Modified:
    Pink Wire Modified:yes
    Cam: Hot Cam, Stage 1
    06 250x, air box, full R exhaust, 06 R cam, JD jet kit, red needle, AP mod, backfire screen, 165 main, 42 pilot
  • staticbags
    Posts: 22
    Joined: Thu Feb 28, 2008 8:35 am

    by staticbags » Sat Mar 29, 2008 6:33 pm

    Year: 2006
    Elevation: 50 - 3500
    Temperature Range: 50-100 deg.
    Smog (AIS): ? stock i guess its a tx bike
    Airbox Modified Top: yes
    Airbox Modified Sides: no
    Backfire Screen: NO
    Air Filter: stock
    Pilot Jet: stock (gonna change to 42)
    Main Jet: 165
    Needle: RED
    Needle Clip Position: 5th
    Fuel Screw Type: after market (it's red?)
    Fuel Screw Setting: 1.75 turns out
    AP Modified: ? stock i think
    Leak Jet: ?
    AP Cover: ?
    Exhaust Type: 250R with pro billet sparky
    Exhaust Modified: yes
    Pink Wire Modified:no (dont' think so)
    Last edited by staticbags on Tue Jun 16, 2009 10:36 pm, edited 1 time in total.
  • z324u
    Posts: 20
    Joined: Sun Feb 10, 2008 10:07 am

    by z324u » Sun Apr 13, 2008 6:59 pm

    Year: 2006
    Elevation: 0-1000
    Temperature Range: 50-100 deg.
    Smog (AIS): no smog
    Airbox Modified Top: yes
    Airbox Modified Sides: no
    Backfire Screen: removed
    Air Filter: stock
    Pilot Jet: 45
    Main Jet: 168
    Needle: RED
    Needle Clip Position: 5th
    Fuel Screw Type: zip ty
    Fuel Screw Setting: 1.75
    AP Modified: no
    Leak Jet: stock
    AP Cover: stock
    Exhaust Type: stock
    Exhaust Modified: cut both discs off baffle
    Pink Wire Modified:yes

    nice tan brown plug. bike RIPS
    06'crf250x
    07'crf150f
    07'trx420 rancher
    07'crf70f
  • Addicted
    Posts: 51
    Joined: Wed Dec 19, 2007 12:12 pm

    by Addicted » Sun Apr 13, 2008 8:42 pm

    Year: 2006
    Elevation: 600-900 ft
    Temperature Range: 30-90 Deg F
    Smog (AIS): N/A 49-state
    Airbox Modified Top: Yes (per Honda Wrench)
    Airbox Modified Sides: No
    Backfire Screen: Yes
    Air Filter: Stock
    Pilot Jet: 42
    Main Jet:165
    Needle: JD Red
    Needle Clip Position: 5th from top
    Fuel Screw Type: CRFsOnly
    Fuel Screw Setting: 1 3/4 turns out
    AP Modified: Thick band (JD kit)
    Leak Jet: Stock
    AP Cover: Stock
    Exhaust Type: Stock
    Exhaust Modified: Baffle drilled 11/16
    Pink Wire Modified: in place
  • User avatar
    Riley
    Posts: 946
    Joined: Sun Aug 12, 2007 2:53 pm

    by Riley » Sun Jun 15, 2008 4:46 pm

    Year: 2007
    Elevation: 4000-9000'
    Temperature Range: 50-100*
    Smog (AIS): Stock
    Airbox Modified Top: CCC Mod
    Airbox Modified Sides: No
    Backfire Screen: Removed
    Air Filter: Twin Air with No Toil oil
    Pilot Jet: 42 (stock)
    Main Jet: 165
    Needle: JD Red
    Needle Clip Position: 3rd
    Fuel Screw Type: R&D Flex Screw AWESOME!
    Fuel Screw Setting: 2 turns out
    AP Modified: No
    Leak Jet: Stock
    AP Cover: Stock
    Exhaust Type: FMF Q4 Muffler
    Exhaust Modified: No
    Pink Wire Modified: No
    Last edited by Riley on Sat Apr 02, 2011 9:41 am, edited 3 times in total.
    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
    NCFRC
    Posts: 114
    Joined: Fri Apr 25, 2008 8:40 am

    by NCFRC » Sun Jun 22, 2008 7:29 am

    Year:2004
    Elevation:0-2000
    Temperature Range:50-80
    Smog (AIS):NA
    Airbox Modified Top:Full Top
    Airbox Modified Sides:NO
    Backfire Screen:NO
    Air Filter:UNI
    Pilot Jet:45
    Main Jet:160
    Needle:stk
    Needle Clip Position:stk
    Fuel Screw Type:stk
    Fuel Screw Setting:2 out
    AP Modified:NA
    Leak Jet:55
    AP Cover:NA
    Exhaust Type:Full R Exhaust
    Exhaust Modified:Stk R
    Pink Wire Modified:Yes

    Factory Connection suspension , Trail Tech Tach, Final gearing 13 / 52 , Stk X cam
    Good usable power , Very Strong

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