Hello guys,
I have recently bought a GSX750F that is running rough as anything. While riding it home it appeared to be running mostly on two and three cilinders but ocasionaly on four. Today I took the carbs appart and they look nice and clean ( the last owner told me they had just been cleaned). I decided to test for spark and got a good spark on number 3 and 4 but nothing at all on 1 and 2. I am a little bemused as this means that both coils have failed on one plug but not the other. Changing the low voltage wires around makes no difference always no spark on 1-2 and good spark on 3-4. I have taken the coils out and tested them the low voltage side gives me 3 Omhs on both coils but testing the high voltage side I get nothing (I am testing the omhs between the two sparkplug leads).
What do you think? a trip to the breakers for new coils?
The last owner told me the bike was running poorly because the carbs need balancing. Will this make the bike run on two or three cilinders? In any case no spark no fire I guess.
One las thing... any sugestion for a cost effective but reliable way to get a set of coils for not much cash.
I have done a search and it has helped but there is nothng on a failure like this. Thanks for any help.
I have recently bought a GSX750F that is running rough as anything. While riding it home it appeared to be running mostly on two and three cilinders but ocasionaly on four. Today I took the carbs appart and they look nice and clean ( the last owner told me they had just been cleaned). I decided to test for spark and got a good spark on number 3 and 4 but nothing at all on 1 and 2. I am a little bemused as this means that both coils have failed on one plug but not the other. Changing the low voltage wires around makes no difference always no spark on 1-2 and good spark on 3-4. I have taken the coils out and tested them the low voltage side gives me 3 Omhs on both coils but testing the high voltage side I get nothing (I am testing the omhs between the two sparkplug leads).
What do you think? a trip to the breakers for new coils?
The last owner told me the bike was running poorly because the carbs need balancing. Will this make the bike run on two or three cilinders? In any case no spark no fire I guess.
One las thing... any sugestion for a cost effective but reliable way to get a set of coils for not much cash.
I have done a search and it has helped but there is nothng on a failure like this. Thanks for any help.
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