1994 FZR600R running on cylinders 1&4 but 2&3 aren't firing, Am I forgetting something? My motorcycle starts but I have to keep the throttle rolled on or else it'll just die, I've checked all the wires and installed a new harness a week ago, the bike starts up and I'm getting suction from all four carbs, but the third and second cylinder isn't firing and there's no spark for the third cylinder, the first ignition coil is doing nothing while the coil for 1&4 has a spark. The coils are also relatively new. The CDI box is fairly new as well but when I took it to Yamaha dealership they told me that one of the terminals in the box might not be sending a signal to the coil to tell it when to fire, so it just sits there waiting for a signal. should I get a new CDI box? @
Most of the time by this bike are the mail pipes of the carburator oval https://goparts.eu/en/blueprint/yamaha/road/1995/fzr-r-600/carburetor
SOURCE: Rear cylinder not firing
95 Evo, new plugs, new wires, started backfireing like a machine gun, front cyl. no spark at plug sometimes - would this be the coil, have not ohmed the coil yet . Thanks
SOURCE: left cylinder not firing,started ayear ago would
Does that model have one coil or 2? If it checks out fine on both sides, I would assume you have a carb issue. Not getting enough gas to that one cylinder. If the ignitor was bad, you wouldn't have fire to either coil.
SOURCE: the engine is firing on one cylinder and when the
Clean the carb on the bad cylinder. It may have a plugged pilot jet. The bike has CV carbs. There is a chance that the offending carb may have a pin hole in the diaphragm causing one slide to open later than the other slide. This could also be the problem. With the air cleaner removed, look at both carb slides and see if they crack open at the same instant or if one is definitely later than the other. That will confirm or eliminate the diaphragm.
A top rating for this answer? Thanks!
SOURCE: mercedes c200 elegance 1996 model mis-firing on cylinders 1-4
I beleive your firing order is 1 3 4 2. 1 and 4 are companion cylinders-meaning the piston is up or down at the same time i.e. compression and exhaust stroke both pistons are up and even on the exhaust stroke the ignition fires in order to burn unburnt fuel/ h ve you checked your trigger. There is a good coil testing tool that is placed over the coil and has a magnetic pickup that allows you to see if the coil is being triggered-just because you have power doesn't mean that you will have spark. I would replace your ignition wires and look at your wiring harness very carefully- if it is very brittle and you see bare wires exposed that is your most likley problem because the trigger is working for 1 and 3 and has the crank senser input for all for spark plugs and the cam senser is used for ignition advance and your fuel injection system. try wiggling your harness and see if your coils start to work. wireharnesses are a major problem on mercedes benz vehicles of that era. I hope I have been helpful
SOURCE: 2002 escape miss fire on cylinder one
power not reaching cylinder 1 ignition coil. check electrical connections and wiring for any damage. test for power and ground at cylinder 1.
hope this helps.
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