1990 cbr250rr engine into 1989 cbr250r

Hi, Anonymous and the usual suspects are:
1. Idle speed improperly adjusted.
2. Air fuel mixture screws not properly adjusted.
3. Inlet system air leak.
4. Leaking accelerator pump.
5. Loose low-speed jet.
6. Plugged low-speed jet.
7. Contaminated or plugged low-speed circuit.
8. Enrichner valve/choke not seated or leaking.
9. Multi carburetors out of sync and need to be balanced.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
http://mototh.com/files/honda/CBR250R/Honda-CBR250RR-Service-Manual-EN.pdf
http://www.partsfish.com/page/oem-parts-for-honda
HONDA CBR250R RA Owner Manual

Hi, Saif for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Honda, despair not, for a mere $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
how to reset odometer CBR Forum Enthusiast forums for Honda CBR Owners
Speedometer reset
http://mototh.com/files/honda/CBR250R/Honda-CBR250RR-Service-Manual-EN.pdf
http://www.hondampe.com.au/docs/owning_a_honda/owners_manuals/motorcycles/CBR250R-RA%2032KYJE000.pdf

this isn't firing order. each coil does two cylinders 2 & 3 same coil cyl 1 & 4 same coil

Hi, Douglas_czuc nice novella and the usual suspects are:
1. Severely discharged or a damaged battery, should have 12.5 volts or better and be able to pass a load test if necessary.
2. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
3. Spark plugs in bad condition or partially fouled.
4. Spark plug cables in bad condition and leaking check for spark leakage in the dark
5. Spark plug gap too close or too wide.
6. Faulty ignition coil, module, and or sensor.
7. Loose, dirty, or corroded ignition module connector at crankcase.
8. Faulty CKP or CMP, MAP, ETS, ATS, TPS, O2 sensor.
9. Dirty air filter.
10. Intake air leak.
11. Water, dirt, or rust in the fuel system.
12. Carburetor damaged, contaminated, sticky float, plugged jets.
13. Multiple carburetors out of sync.
14. Fuel filter clogged.
15. Old or contaminated fuel.
16. Fuel tank vent system plugged or carb vent line closed off.
17. Gas cap diaphragm valve faulty.
18. Vacuum line from intake manifold to fuel valve is broken, cracked, pinched, or missing.
19. Carburetor controls misadjusted.
20. Incorrect valve timing.
21. Valve springs floating, weak, or broken.
22. Damaged intake or exhaust valve.
23. Incompatible performance parts.
24. Control module may be in "LIMP" mode
25. Check for engine trouble codes.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
1990 Honda CBR 250 RR running spitting issues
CBR250RR Misfiring
http://mototh.com/files/honda/CBR250R/Honda-CBR250RR-Service-Manual-EN.pdf
http://www.partsfish.com/page/oem-parts-for-honda
http://www.hondampe.com.au/docs/owning_a_honda/owners_manuals/motorcycles/CBR250R-RA%2032KYJE000.pdf

Hi, Amjasper and the usual suspects are:
1. Insufficient oil level or no oil in engine or tank.
2. Air in oil system that needs to be bled.
3. Blockage in the oil tank or line.
4. Oil pump failure.
5. Faulty oil pressure sending unit.
6. Grounded oil pressure light circuit.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
mc22 oil light on
http://www.fireblades.org/forums/honda-cbr-600/98791-oil-light-can-anyone-help.html
1986 1999 Honda CBR250R CBR250RR Service Manual Moto Data Project
http://www.partsfish.com/page/oem-parts-for-honda
http://www.hondampe.com.au/docs/owning_a_honda/owners_manuals/motorcycles/CBR250R-RA%2032KYJE000.pdf

Check this wiring diagrams...

Fig. 23: Engine wiring-22RE 1989-92 4Runner and 1989-90 Pick-Up


Fig. 24: Engine wiring-6-cylinder 1989-92 4Runner and 1989-90 Pick-Up

Good luck.

Vacuum hose routing-1989 2.5L California Turbo I engine




Vacuum hose routing-1990-91 2.2L and 2.5L Federal engines with manual transaxles, and 2.2L and 2.5L Canadian and California engines




Vacuum hose routing-1990-91 2.5L Turbo I California engines




Vacuum hose routing-1990-91 2.5L Turbo I Federal and Canadian engines

Hope helped with this information (remember rated this help) Good luck.

Check to make sure the choke is working properly, then check all your fuel lines for brittleness.air cracks. They need to hold the pressure required to bring the fuel to the carb.

It would not hurt to thoroughly clean and gap the plugs, but after all this, try using a spray can of carb cleaner to spray through the carb and clean out build ups of gum and varnish. When you do, run at a rather fast idle, because the introduction of the carb cleaner will bog the engine down. After all, it is burning gunk. THEN clean or replace the plugs.

Good luck!

Sirwriter

Ignition timing should be checked and adjusted whenever spark plugs are replaced or any distributor maintenance is performed. Ignition timing at 1000 RPM or less should be as follows: on 1989 1.3L/4-79 engines, 3-7°BTDC; on 1990-92 1.3L/4-79 engines, 0-2°; on 1.6L/4-97 engines, 1-5°.

well you didn't specify the year, make, and model of the truck you are asking about so this is the best answer I can come up with. Below is a list I found that says what vehicles are interference motors...

INTERFERENCE ENGINES WITH TIMING BELTS
ACURA
1986-89 1.6L Integra
1991-95 1.7L Integra
1990-95 1.8L Integra
1986-89 2.5L Legend
1992-94 2.5L Vigor
1986-89 2.7L Legend
1990 2.7L Legend
1991-95 3.0L NSX
1991-95 3.2L Legend
AUDI
1970-93 All Except 1970-77
1.9L & 1970-73 1.8L
BMW
1987-95 2.5L 325I 525I
1994-95 4.0L 740I
CHRYSLER
1993-95 1.5L Colt
1987-88 1.5L Colt
1992-95 1.5L Eagle Summit
1987-88 1.6L Colt
1989-92 1.6L Eagle Summit
1994-98 2.0L Neon Stratus
1990-95 2.0L Eagle Talon
DAIHATSU
1988-92 1.0L Charade
1988-92 1.3L Charade
1990-92 1.6L Rocky
FIAT
1974-79 1.3L 128 Series
1979-82 1.5L Stranda
1974-78 1.6L 124 Series
1974-78 1.8L 124 Series
1974-78 1.8L 131 Series, Brava
1979-82 2.0L Brava, Spider
FORD
1981-85 1.6L Escort, EXP
1981-83 1.6L LN7, Lynx
1984-85 2.0L Escort, Tempo
1993-95 2.0L Probe
1986-88 2.0L Ranger
1984-87 2.0L Lynx, Topaz Diesel
1985 2.2L Ranger
1989-92 2.2L Probe
1986-88 2.3L Ranger
1986-87 2.3L Diesel Ranger
1991-98 4.6L Crown Victoria
GM
1986-95 1.0L Geo Metro
1989-91 1.0L Firefly (CANADA)
1985-88 1.5L Sunburst (CANADA)
1985-89 1.5L Spectrum
1990-93 1.6L Prizm, Storm
1981-84 1.8L Diesel (CANADA)
1982-86 1.8L Buick Skyhawk
1990-98 1.9L Saturn
1987-88 2.0L Buick Skyhawk
1988-95 2.3L Quad Four
1985-87 3.0L Buick
1979-95 3.8L Buick
HONDA
1986-87 1.0L Prelude
1973-78 1.2L All
1973-78 1.3L All
1980-84 1.3L All
1973-78 1.5L All
1985-89 1.5L Civic
1988-95 1.5L Civic, CRX
1993-95 1.5L Civic Del Sol
1979-84 1.5L All
1985-87 1.5L CRX
1993-95 1.6L Civic Del Sol
1973-78 1.6L All
1980-82 1.6L All
1988-95 1.6L Civic, CRX
1984-87 1.8L Prelude, Accord
1979-83 1.8L All
1986-91 2.0L Prelude
1990-91 2.1L Prelude
1990-95 2.2L Prelude, Accord
1992-95 2.2L Prelude
1995 2.7L Accord
HYUNDAI
1984-95 1.5L Excel Scoupe
1995-98 1.5L Accent
1992-95 1.6L Elantra
1993-95 1.8L Elantra
1992-95 2.0L Sonata
1989-91 2.4L Sonata
1990-95 3.0L Sonata
INFINITI
1990-92 3.0L M30
ISUZU
1987-89 1.5L I-Mark
1990-93 1.6L Stylus Impulse
1987-89 2.0L Impulse
1981-87 2.2L Diesel Truck
1986-95 2.3L Truck Trooper
1988-95 2.6L Truck Rodeo Amigo
1991-96 3.2L Trooper Rodeo Amigo
KIA
1995 2.0L Sportage
MAZDA
1984-85 2.0L 626
1988-92 2.2L 626 MX6
1989-93 2.2L Pickup
1988-95 3.0L 929 MPV
MITSUBISHI
1985-95 1.5L Mirage Precise
1990-92 1.6L Mirage
1989-95 2.0L Galant Eclipse
1983-86 2.3L Diesel Pickup
1994-95 2.4L Galant
NISSAN
1982 1.5L Centra
1983-88 1.6L Sentra Pulsar
1987-89 1.8L Pulsar
1982-89 2.0L Stanza 300ZX
1984-95 3.0L Maxima 300ZX Pathfinder
PORSCHE
1976-83 2.0L 924
1976-89 2.5L 944 Series
1989 2.7L 944 Series
1989-91 3.0L 944 Series
1976-83 4.5L 928
1984 4.7L 928
1985-91 5.0L 928
1992-95 5.4L 928
SUZUKI
1985-94 1.3L Samurai Sidekick
1989-94 1.3L Swift
TOYOTA
1986-95 1.5L Tercel
1981-83 2.2L Pickup
1984-87 2.4L Pickup
1982-88 2.8L Celica Cressida
1987-94 3.0L 4-Runner
VOLKSWAGEN
1976-91 All Except 1.9 2.1L Engine
1990-92 1.6L Golf (CANADA) Jetta
1990-95 2.0L GTI Jetta GLI Passat
VOLVO
1991 2.3L Coupe 940
1986-94 2.3L 240 740 940