Bike won't start 92 yamaha fzr 600

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

With the engine not running can you select 1st gear pull in the clutch lever and push the bike with no difficulty, if you cant, it may be the clutch plates have become stuck together, this can occure from standing for long periods, if you can push the bike it may be the neutrol safety switch, or the side stand safety switch have become faulty, and cutting the bike out as a precaution

Check the igniter box and make sure its a strong blue spark.

Yes occasionally a battery can put out enough cold crank amps to spin the starter and motor, but in doing so drags the voltage down so the electronic ignition wont fire.


a couple of warnings
If you check for spark make certain there is a plug in the lead and it is grounded to the engine, if not the voltage builds up in the coils until it can spark to something.
dont jump it of a bigger car battery, when the bike starts it can try to produce more amps than its supposed to to try and charge the car battery and stuff the reg.

Is the kill switch on? Good battery? The side stand should be up. Is the choke on? Is the bike in neutral? Have you checked the fuses? Headlight should be off.

Get new stock plugs from the dealer. Check to see that the choke will open and close properly. Drain the carbs then remove and clean the fuel valve water trap bowl. Check the wiring harness for unplugged wires and loose connections. When was the last time you installed an air filter?