17-10-19, 12:50 AM
What mileage is on the engine?Bore wear on the FZS600 is rare as the bore is nikasil coated, however on a very poorly maintained engine it can happen.
Bore washing from a leaky Float valve seal is the most likely issue as you have alluded to yourself and Fazerider also suggested..
Faulty TPS will not cause a misfire in just one cylinder as it changes the ignition timing at different throttle openings and would effect all four cylinders
Was the bike idle for a long enough period for the pilot jets to be clogged from evaporated petrol. If it was, then replacing the seals on the float valves would be wise.
I would suggest that the first thing to do would be remove the carbs again and replace the float valves and seals on all 4.The pilot jets are difficult to clean as the have a star shaped web internally and the only way to clean them if you do not have access to and Ultrasonic bath is to poke the jet with a fine brass or copper wire as this will not damage the jet. I have found soaking the jet in Cellulose thinners to be very effective and using a brass wire to dislodge the most stubborn crap.
Bore washing from a leaky Float valve seal is the most likely issue as you have alluded to yourself and Fazerider also suggested..
Faulty TPS will not cause a misfire in just one cylinder as it changes the ignition timing at different throttle openings and would effect all four cylinders
Was the bike idle for a long enough period for the pilot jets to be clogged from evaporated petrol. If it was, then replacing the seals on the float valves would be wise.
I would suggest that the first thing to do would be remove the carbs again and replace the float valves and seals on all 4.The pilot jets are difficult to clean as the have a star shaped web internally and the only way to clean them if you do not have access to and Ultrasonic bath is to poke the jet with a fine brass or copper wire as this will not damage the jet. I have found soaking the jet in Cellulose thinners to be very effective and using a brass wire to dislodge the most stubborn crap.