I cant believe Ive been awarded 4 posts since the Yuku move.anyway- heres a vid I did on balancing...where I made a cnut of myself was the icing probs....good anti freeze is your friend in UKhttp://www.youtube.com/watch?v=CYgN2-96Ik0#
Got a multi-meter? Could always check the resistances on the primary/secondary coils, pretty straight forward check. Similarly, you can check HT leads at same time.
Thanks for the welcome and response :-) Tried fuel additives to stop carb icing, non worked really :-( I did know about the heating system for the carbs and wondering if the small pipes from the coolant system were blocked, I now know they are not as I've got the carbs off the bike, so no problems there, in response to ChristoT, I agree that smooth throttle works wonders but when you need to drop a cog and overtake a car or 3, the last thing you expect is for the bike to not go anywhere, not speed up, nothing, just judder and sound worse than Worzel Gummages tractor, not good really, so def a fault somewhere. Also had the bike almost 4 years and it's not restricted :-D Darssi, got the standard air filter in, it's clean too, as for plug caps, that is one for me to check y82ugp, was suggested I find somewhere really dark, easy here, and see if I have any arcing over, once the carbs are back on, that is one to try. I did chop off 1cm of the leads to the caps, it is a 13 year old bike and on original caps etc, made no difference but was worth a go. Arfa, I do have a multi meter, the coils are one thing I will need to look at. The local bike shop suggested fuel pump, any thoughts on this?
which the IPA bonds with
With darrsi on that one.. carb icing being the fuel and not the cooling system...
Checked all the carb inlet rubbers when I had the carbs off, all nice and clean and in good nick, no splits, the whole airbox is as new, a friend suggested kinked breather pipes but I know the issue isn't there, as the carbs are now spotless, inside and out, I'm ruling them out for now, though they do need a balance after my tinkering, I wonder if just a carb balance would sort the issue out, will see. I am wondering about plug caps, got to fire it up in the dark to check for arcing, the plugs are fine, 2k miles old but could be worth a check anyway, the battery is new and charges just fine. Will keep at it :-)
Liking the IPA idea :-) After 10 of them, I won't care :-DBunged the carbs back on tonight, was a bugger of a job to get the air filter housing and tubes back onto the carbs, that took the longest, sadly though, was still the same, so, clean as a whistle carbs and not the carbs, maybe.On one note, any revs above 5k seems to blast through the stuttering, blow 5k and it's tractor time, above 5, it stutters then takes off, change gear and no problem as the revs are high, but then, at those revs and speeds, you don't snap the throttle open anyway, so still stumped. Going to check the caps next me thinks and look at some IPA :-D
Quote from: Sannox on 10 April 2014, 09:14:31 pmLiking the IPA idea :-) After 10 of them, I won't care :-DBunged the carbs back on tonight, was a bugger of a job to get the air filter housing and tubes back onto the carbs, that took the longest, sadly though, was still the same, so, clean as a whistle carbs and not the carbs, maybe.On one note, any revs above 5k seems to blast through the stuttering, blow 5k and it's tractor time, above 5, it stutters then takes off, change gear and no problem as the revs are high, but then, at those revs and speeds, you don't snap the throttle open anyway, so still stumped. Going to check the caps next me thinks and look at some IPA :-DHi Sannox, any update.Just joined the site, was doing a Google search and found your post.I am showing the same symptoms.Bike starts, idols and runs great. Will ride perfectly under normal acceleration but when you crank the throttle it sputters as if its on 3 cylinders, get it past the stuttering and she goes like a rocket, hang onto the grips. History:Bike is a 99 FZS600.Had a leak in the fuel Tank, took it off and repaired it then coated the inside of the tank with a special epoxy resin. Tank was stinking inside, cleaned it well before repair, cleared the vents in the base of the tank post epoxy refurb, think they are correct as I seem to get the same noise / volume of air when i blow through them, one is an overflow direct from the top of the tank as it pressurises the tank when you blow into it, the other seems to come from up near the filler.Bike runs OK but still does not taking the throttle hard.Replaced the Fuel Filter, origional one seems OK.Next thought it was the Carbs filled with gunk, possibly a large particle intermittently blocking a jet, removed the carbs and serviced them, think they are spotless.Replaced the Carb to Inlet rubbers with new ones as they were badly cracked.Still same problem not taking the throttle.One of the boys in work says it sounds like vacuum, know I bent the rubber vent tubes when installing the tank, thought that was problem, not, as have cut 2cm off the top to clear and crease in the tubing and reseated correctly.Still no joy.Have still to check the Plugs and Plug leads, was going to start them tonight but found out that Car and Bike spark plug sockets are different.Will get a correct socket tomorrow.Tank is off the bike at the moment, going to check the air filter. Theory is that cranking open the throttle needs more air, air filter possibly blocked.Also waiting for it to get dark, going to check for any signs of Plug Hi-tension lead arching to the engine etc. One of the boys with a vacuum guage has promised the balance the carbs next week. Any suggestions or an update on where you are would be great.
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Topic: Carbs or something else, maybe? (Read 6247 times)
