Index: Carb Jetting Database
  • User avatar
    crfsonly
    Owner
    Posts: 9639
    Joined: Thu Apr 01, 2004 3:45 pm

    Index: Carb Jetting Database

    by crfsonly » Mon Apr 09, 2007 5:20 am

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


    Year:
    Elevation:
    Temperature Range:
    Smog (AIS):
    Airbox Modified Top:
    Airbox Modified Sides:
    Backfire Screen:
    Air Filter:
    Pilot Jet:
    Main Jet:
    Needle:
    Needle Clip Position:
    Fuel Screw Type:
    Fuel Screw Setting:
    AP Modified:
    Leak Jet:
    AP Cover:
    Exhaust Type:
    Exhaust Modified:
    Pink Wire Modified:
    Last edited by crfsonly on Fri Jul 15, 2011 7:59 pm, edited 1 time in total.
    OEM Parts for Honda - Yamaha - Suzuki - Kawasaki: http://yeltrik.com
    _________________
    CRF Parts and Accessories: http://crfsonly.com
  • redrooster65
    Posts: 576
    Joined: Tue Sep 05, 2006 4:37 pm

    by redrooster65 » Mon Apr 09, 2007 6:39 am

    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
    Needle: Red
    Needle Clip Position: 4th
    Fuel Screw Type: CRF's Only
    Fuel Screw Setting: 1 3/4
    AP Modified: No
    Leak Jet: 55
    AP Cover: No
    Exhaust Type: Stock
    Exhaust Modified: Drilled
    Pink Wire Modified: Yes

    Bog, what bog!
  • User avatar
    Monkeywrench
    Posts: 867
    Joined: Thu Aug 19, 2004 9:01 pm

    by Monkeywrench » Mon Apr 09, 2007 7:01 pm

    Year: 2004
    Elevation: sea level
    Temperature Range: 40° to 95°F
    Smog (AIS): no
    Airbox Modified Top: yes. cut top.
    Airbox Modified Sides: no.
    Backfire Screen: removed
    Air Filter: TwinAir
    Pilot Jet: 45
    Main Jet: 165
    Needle: JD's red needle
    Needle Clip Position: 5th groove from top
    Fuel Screw Type: ZipTye
    Fuel Screw Setting: about 1.75 turns out
    AP Modified: no, just tweaked the timing screw
    Leak Jet: 55
    AP Cover: Boyesen cover (not the stocker)
    Exhaust Type: Stock header, with White Bro's E2 slip-on
    Exhaust Modified: as listed above
    Pink Wire Modified: Yes
    2006 450R
  • ThumperX
    Posts: 1256
    Joined: Sun Jan 14, 2007 11:44 am

    by ThumperX » Mon Apr 09, 2007 9:14 pm

    Year: '05
    Elevation: 1500-9500
    Temperature Range: 40-100
    Smog (AIS): WB block-off
    Airbox Modified Top: Yes
    Airbox Modified Sides: No
    Backfire Screen: Removed
    Air Filter: UNI 2 stage
    Pilot Jet: 48
    Main Jet: 165
    Needle: JD
    Needle Clip Position: 4th
    Fuel Screw Type: stock
    Fuel Screw Setting: 1.5
    AP Modified: NO
    Leak Jet: Stock
    AP Cover: Stock
    Exhaust Type: WB E2
    Exhaust Modified: Exchangable baffle
    Pink Wire Modified:No
    05' CRF250X
    07' CR250R
    02' CRF450R
  • User avatar
    The Hobbit
    Posts: 75
    Joined: Sat Jun 03, 2006 9:33 am

    by The Hobbit » Tue Apr 10, 2007 8:09 am

    Year: 2005
    Elevation: 0-5000
    Temperature Range: 50-120
    Smog (AIS): stock
    Airbox Modified Top: yes
    Airbox Modified Sides: no
    Backfire Screen: yes
    Air Filter: Uni
    Pilot Jet: 42
    Main Jet: 165
    Needle: red
    Needle Clip Position: 5
    Fuel Screw Type: CRF's only
    Fuel Screw Setting: 2 turns
    AP Modified: large O-ring only
    Leak Jet: stock
    AP Cover: Boysen quickie
    Exhaust Type: "R" stock silencerProMoto billet tip
    Exhaust Modified: ProMoto billet tip -5 db insert
    Pink Wire Modified: no/crf 230 keyed ign.


    Baja designs dualsport kit
    Flatland radiator guards
    Flatland Racing skidplate
    TrailTech Vapor speedo
    Flatland odometer spacer
    Acerbis rally pro handguards
    Dunlop D606 rear 120/90-18, Front D606f 90/90-21
    Renthal rear ch. ring 50 tooth
    Stock front sprocket 14 tooth
    KoubaLink 3 lowering link
    Trimmed stock seat (inserted gel and memory foam)
    Ride: anywhere I get a chance


    After all this sh*t.. I still can't ride!! :lol:
    Last edited by The Hobbit on Fri Apr 13, 2007 2:03 pm, edited 1 time in total.
    There's something... out there, There's something... on the wing!!! SOME...THING!!!??
  • Old Dude
    Posts: 828
    Joined: Tue Jul 19, 2005 11:34 am

    by Old Dude » Tue Apr 10, 2007 8:37 am

    Year: '06
    Elevation: 100-3000
    Temperature Range: I ride at temps between 45-95 I'm a fair weather rider
    Smog (AIS): Removed
    Airbox Modified Top: Opened per JD recommendation
    Airbox Modified Sides: Intact. Backfire Screen: removed
    Air Filter: Twin Air Flame retardant
    Pilot Jet: 42
    Main Jet: 165
    Needle: JD red
    Needle Clip Position: 4th
    Fuel Screw Type: CRFsOnly
    Fuel Screw Setting: In all the way then back out til it ran crisp. As I recall I started fine tuning at about
    1 1/2 turns and frankly didn't keep track. Just til it reved crisp and smooth
    AP Modified: No
    Leak Jet: 65
    AP Cover: Boyeson
    Exhaust Type: CHM
    Exhaust Modified:
    Pink Wire Modified: Yes
    '06 250X: http://crfsonly.com/forum/garage.php?mo ... le&CID=386
    '03 CRF230
    '04 CRF230
    '08 750 Shadow Spirit
    '01 Polaris Sportsman 600
    '03 CRF50
    '04 KLX110
    Kazuma Falcon90
  • Halen
    Posts: 362
    Joined: Sat May 13, 2006 4:32 pm

    by Halen » Thu Apr 12, 2007 5:51 pm

    Year: 2005
    Elevation: 0 - 5000'
    Temperature Range: 5' - 40'C
    Smog (AIS): N/A
    Airbox Modified Top: 3"X4"
    Airbox Modified Sides: None
    Backfire Screen: Removed
    Air Filter: TwinFlow with Fire/R
    Pilot Jet: 45
    Main Jet: 165
    Needle: Red (JD)
    Needle Clip Position: 5
    Fuel Screw Type: CRF's Only
    Fuel Screw Setting: 2.25
    AP Modified: Oring (JD)
    Leak Jet: stock
    AP Cover: N/A
    Exhaust Type: FMF Powercore
    Exhaust Modified: yes
    Pink Wire Modified: yes
    09 CRF 250R
    RMR lowered suspension
    Heavily armoured for the bush
    50 tooth rear
    soft gel seat
  • P99
    Posts: 45
    Joined: Wed Feb 21, 2007 1:12 am

    by P99 » Thu Apr 12, 2007 9:24 pm

    Year: 2005
    Elevation: Sea Level - 3,000 Ft
    Temperature Range: 50 - 80 F
    Smog (AIS): N/A
    Airbox Modified Top: Yes
    Airbox Modified Sides: No
    Backfire Screen: Removed
    Air Filter: Twin Air, fire retardant
    Pilot Jet: 42
    Main Jet: 165
    Needle: JD Red
    Needle Clip Position: 5th
    Fuel Screw Type: Zip Tye
    Fuel Screw Setting: 2
    AP Modified: Yes, thick o-ring
    Leak Jet: Stock
    AP Cover: Boysen
    Exhaust Type: FMF Q4
    Exhaust Modified: Stock header
    Pink Wire Modified: Yes

    Comments: No Bog, bike runs a bit rich, plan to change the Main to a 162 and move the needle to the 4th. Power Now did nothing to improve the performance, took it out.
  • User avatar
    NCLR1
    Posts: 465
    Joined: Sun Dec 24, 2006 7:20 am

    by NCLR1 » Fri Apr 13, 2007 12:42 pm

    Year: 2006
    Elevation: <3000
    Temperature Range: 40-105 F
    Smog (AIS): Stock
    Airbox Modified Top: Yes
    Airbox Modified Sides: Stock
    Backfire Screen: Stock
    Air Filter: Twin Air
    Pilot Jet:42
    Main Jet: 158
    Needle: Red needle
    Needle Clip Position: 5th
    Fuel Screw Type: Crfsonly
    Fuel Screw Setting: 2 1/8
    AP Modified: large oring only
    Leak Jet: stock
    AP Cover: stock
    Exhaust Type: WB E2
    Exhaust Modified: N/A
    Pink Wire Modified: Stock
    Tony C
  • WillD
    Posts: 2
    Joined: Thu Mar 23, 2006 5:44 pm

    by WillD » Fri Apr 13, 2007 5:04 pm

    Year: 2004
    Elevation: 900ft.
    Temperature Range: 50-80F
    Smog (AIS):No
    Airbox Modified Top: Yes 10sqin opening
    Airbox Modified Sides: No
    Backfire Screen:removed
    Air Filter: Stk.
    Pilot Jet:42
    Main Jet:155
    Needle: Stk.
    Needle Clip Position: 4th
    Fuel Screw Type: Stk.
    Fuel Screw Setting: 2
    AP Modified:No
    Leak Jet:55
    AP Cover: Stk.
    Exhaust Type:Stk.
    Exhaust Modified: Yes, Drilled 11/16"
    Pink Wire Modified:No
  • 500MELON
    Posts: 2
    Joined: Sat Jul 29, 2006 12:24 pm

    by 500MELON » Sat Apr 14, 2007 12:32 pm

    Year: 06' 250x
    Elevation: seal level
    Temperature Range: 70 to 90
    Smog (AIS): none
    Airbox Modified Top: yes
    Airbox Modified Sides:no
    Backfire Screen: removed
    Air Filter: twin air
    Pilot Jet: 42
    Main Jet: 165
    Needle:jd red
    Needle Clip Position: 4th
    Fuel Screw Type: crf's only
    Fuel Screw Setting: 2 turns
    AP Modified: jd thick o-ring
    Leak Jet: stock
    AP Cover: stock
    Exhaust Type: stock
    Exhaust Modified: drilled
    Pink Wire Modified-no
    06' 250x
    jd jet kit,twin air,drilled baffle,cut airbox,hot cams
  • san210crf250
    Posts: 15
    Joined: Sun Apr 08, 2007 9:05 pm

    by san210crf250 » Sat Apr 14, 2007 7:17 pm

    Year: 2006
    Elevation: 6000'-8000'
    Temperature Range: 32-100
    Smog (AIS): No
    Airbox Modified Top: Cut 4x4 hole
    Airbox Modified Sides: No
    Backfire Screen: Removed
    Air Filter: Twin Air Pro
    Pilot Jet: 42
    Main Jet: 160
    Needle: JD Red
    Needle Clip Position: 5th Down
    Fuel Screw Type: CRFS Only
    Fuel Screw Setting: 2 1/8 turns
    AP Modified: No
    Leak Jet: Stock
    AP Cover: Boysen
    Exhaust Type: Stock
    Exhaust Modified: Drilled Hole 1/2" apprx
    Pink Wire Modified: No
    Current Bike: 06 CRF250X
    Previous Bike: 06 CRF230F
    Previous Bike: 82 XR200R
    Boat: Super Air Nautique 210
    4X4: 1982 Toyota FJ40 (Built for RockCrawling)
  • bradhart@gmail.com
    Posts: 56
    Joined: Thu Jan 25, 2007 10:53 pm

    specs

    by bradhart@gmail.com » Fri Apr 20, 2007 4:47 pm

    Year: 06
    Elevation: 100-8000
    Temperature Range: 30-75F
    Smog (AIS):
    Airbox Modified Top:
    Airbox Modified Sides: CCC Mod
    Backfire Screen: CCC
    Air Filter:twin air
    Pilot Jet: 42
    Main Jet: 158
    Needle: 250R
    Needle Clip Position: 4th
    Fuel Screw Type: stock
    Fuel Screw Setting: 2-1/2
    AP Modified: stock
    Leak Jet:stock
    AP Cover: stock
    Exhaust Type: t-4 procircit
    Exhaust Modified:
    Pink Wire Modified: cut
    06 crf250x. ccc mods,scotts damp.protapers,dual sport kit,street legel. athena 280 kit, 07 Rhead Rcam
  • keithb
    Posts: 41
    Joined: Tue Jan 02, 2007 3:19 pm

    by keithb » Sat Apr 21, 2007 4:56 pm

    Year:
    Elevation:
    Temperature Range:
    Smog (AIS):
    Airbox Modified Top:
    Airbox Modified Sides:
    Backfire Screen: stock
    Air Filter: twin air
    Pilot Jet: 42
    Main Jet: 160
    Needle: jd's red needle
    Needle Clip Position: 3rd
    Fuel Screw Type: stock
    Fuel Screw Setting: 2
    AP Modified: heavy o ring
    Leak Jet: stock
    AP Cover: stock
    Exhaust Type:stock
    Exhaust Modified: diffuser removed
    Pink Wire Modified yes
  • vaiana
    Posts: 4
    Joined: Thu Mar 08, 2007 11:45 am

    by vaiana » Wed May 23, 2007 9:30 pm

    Year: 2005
    Elevation: 0-3000
    Temperature Range: 50-100 F
    Smog (AIS): Applied blockoff kit
    Airbox Modified Top: CCMOD
    Airbox Modified Sides: no
    Backfire Screen: Removed
    Air Filter: Twin Air PowerFlo
    Pilot Jet: 42
    Main Jet: 162
    Needle: NCYU
    Needle Clip Position: 4
    Fuel Screw Type: CRF's only
    Fuel Screw Setting: 2 turns out
    AP Modified: no
    Leak Jet: 55
    AP Cover: stock
    Exhaust Type: Pro Circuit T-4 slip on
    Exhaust Modified: no
    Pink Wire Modified: no

Who is online

Users browsing this forum: MSN [Bot] and 2 guests