My bike started misfiring on number 1 cylinder replaced the plug started then started misfiring on the other 3 cylinders only firing on cylinder no 1.The motor then cut out and now refuses to start.replaced all plugs checked injectors which are spraying plugs are firing with a new battery as well@
Hi, Deon and the usual suspects are:
1. Fuel tank empty.
2. The fuel tank has old dead gas.
3. Fuel tank bottom contaminated with ethanol sludge, dirt, water, rust, etc.
4. Fuel supply valve/petcock turned off.
5. Fouled spark plugs.
6. Engine flooded as a result of overuse of the choke.
7. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
8. Fuel valve/petcock or filter clogged.
9. Fuel line to carburetor or throttle body pinched, kinked or blocked.
10. Carburetor float stuck.
11. Fuel injectors clogged.
12. Fuel injectors stuck open.
13. Quick disconnect check ball stuck.
14. Compression below 75 PSI.
15. A stuck-bent-burnt valve.
16. Improper valve clearance (too tight)
17. Severely discharged or a damaged battery should have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a cursory reading of 12.5 volts or more but little or zero amperage the battery is faulty and must be replaced, AGM batteries fail in this scenario more so than lead-acid batteries.
18. 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.
19. Loose or corroded wire connection at the coil or plug between ignition sensor and ECM module.
20. Spark plug cables in bad condition and shorting check for spark leakage in the dark, cable connections are loose or connected to the wrong cylinders.
21. Ignition timing incorrect due to a faulty ignition coil, ignition module or MAP, CMP, CKP, O2, TPS, ETP, IAC sensors.
22. Faulty neutral, clutch, kickstand safety switch.
23. Faulty fuel pump or fuse or relay.
24. Faulty or corroded run/stop switch.
25. Tilt sensor needs a reset.
26. Security system not disarming alarm needs a reset.
27. Check for engine trouble codes.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.cbrxx.com/threads/blackbird-wont-start.22820/
http://www.cbr1100xx.org/forums/index.php?/topic/88306-2002-xx-cranks-but-wont-start-correction-2001/
http://www.bikerchris.co.uk/bike_manuals/CBR1100XX_Service_Manual-97-98.pdf
https://www.partsfish.com/page/oem-parts-for-honda
https://www.manualslib.com/manual/677765/Honda-Cbr1100xx.html
SOURCE: misfiring and backfiring engine cutting out at low revs
take your breather cover off and see if that affects it if you went to a larger jet size you may not be getting enough air to comply with the extra fuel you're dumping in i would suggest drilling a few holes in the breather lid if it straightens up when you remove the lid. i ran into the same problem when i rejetted an artic cat 400
SOURCE: not hitting on all cylinders 1999 honda shadow 750 with 5000 mile
HI harleyrider6,
No hitting means not firing?
Assuming tht its not firing up upon cranking,
please check if theres gas coming to the spark plugs and sparks too.
Not a bad idea to replace the spark plugs if they are fouled up!
Good luck.
Knight.. (Yamaha Seca XJ750A 1981)
SOURCE: 2000 CIVIC System too lean Cylinder 3 and 4 misfire Deteced
SOURCE: left cylinder won't fire...bike stalls in 3rd gear...
Check for spark on both cylinders. Chances are it has been years since anyone paid attention to the ignition points. Download a free PDF service manual at the site below. Get the 15th manual from the bottom of the Honda list. Yes, it is a 250cc manual but the points and timing are the same as the 200cc. It is the nearest free manual I could find. Google " service manuals honda " or try your local library. Often guys will donate manuals to the library.
or go to www.repairmanuals.com
FREE > http://www.carlsalter.com/motorcycle-manuals.asp
Also Google " vintage honda parts "
If the gas tank is rusted inside then line it with a liquid liner. Google “ kreem fuel tank liner “ or go to www.http://www.4secondsflat.com/Fuel_Tank_Sealer.html
Drain the carburetors. There may be a screw on the lower side of each carb float bowl. Remove the screw then replace it after the fuel drains. Remove the water trap bowl at the bottom of the petcock, (gas valve). Is there any water or trash in the bowl? Drain a cup of gas from the tank. Is there any water or trash in the cup? Dump it, clean it and re-mount it, (not all bikes have a water trap bowl). Install an in-line fuel filter. Turn the gas back on and wait a minute for the carbs to fill with gas. Install new stock NGK spark plugs and try to start the engine. If the bike doesn't start and run properly then shut off the gas and remove the carburetors from the engine.
FOR EACH CARB > Remove the float bowl and clean the entire carb with a spray carb cleaner from the auto parts store. Wear protective goggles to avoid getting spray in your eyes. Spray into all the little airways and fittings in the carb. Remove the idle screw and the air screw on the outside throat of the carb and spray into the screw holes as well.
< < READ CLOSELY > >
Be sure to put these two screws back in the same hole they came out of. IMPORTANT > do not tighten these two screws down. Only screw these in until they LIGHTLY seat. Now turn each screw one and one half turns outward. Put the rest of the carb back together, clean the air filter and install the carb. Let the float bowl fill then start the engine.
Please rate this solution. Thanks earthworm03!
SOURCE: My Honda 929RR is misfiring like its running on 3
Hi I have a honda 929 rr.Its started to run on 3 cylinders.Put in new plug and every thing went well.Went on a run and when i came back it run on 3 cylinders again( it idle correct,open frotel to 3000 rpm it missing and above 3000 rpm it every tihng is okay.
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