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Index: Carb Jetting Database
Posted: Mon Apr 09, 2007 5:20 am
by crfsonly
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:
Posted: Mon Apr 09, 2007 6:39 am
by redrooster65
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!
Posted: Mon Apr 09, 2007 7:01 pm
by Monkeywrench
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
Posted: Mon Apr 09, 2007 9:14 pm
by ThumperX
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
Posted: Tue Apr 10, 2007 8:09 am
by The Hobbit
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!!
Posted: Tue Apr 10, 2007 8:37 am
by Old Dude
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
Posted: Thu Apr 12, 2007 5:51 pm
by Halen
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
Posted: Thu Apr 12, 2007 9:24 pm
by P99
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.
Posted: Fri Apr 13, 2007 12:42 pm
by NCLR1
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
Posted: Fri Apr 13, 2007 5:04 pm
by WillD
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
Posted: Sat Apr 14, 2007 12:32 pm
by 500MELON
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
Posted: Sat Apr 14, 2007 7:17 pm
by san210crf250
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
specs
Posted: 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
Posted: Sat Apr 21, 2007 4:56 pm
by keithb
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
Posted: Wed May 23, 2007 9:30 pm
by vaiana
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