GSX750Inazuma Posted May 3, 2016 Posted May 3, 2016 buggery bollocks, i have overhauled the fuel tap on my gsf1200, and replaced the o-rings float valves with a kit, (all 4), set the float heights, bike runs, but struggles occasionally, anyway opened the airbox drain and about a rattle can lid full of fuel, (might be less) pished out, anyone any ideas of what i may have missed or forgotten, Thanks Quote
GSX750Inazuma Posted May 3, 2016 Author Posted May 3, 2016 fuel tap seems fine, fuel is overfilling when riding, not when stood, oil level looks normal, but will drop the oil, for fresh oil, (again) fuel tap in the normal/on position. Quote
Captain Chaos Posted May 4, 2016 Posted May 4, 2016 obviously one or more of the float needles is letting fuel through with the engine running. Have you used original Suzuki needles and O-rings? Because in this case really buy cheap = buy twice. 1 Quote
GSX750Inazuma Posted May 4, 2016 Author Posted May 4, 2016 took the tank off this morning, and the fuel tap is letting fuel flow in the run/on position, so need to revisit that. Airbox was dry this morning, so no fuel into it with bike off, overnight (tank full, always bloody is when you need to remove it... ) would this cause fuel in the airbox? if the float valves and float heights were working correctly? don't want to strip carbs down if the tap is the fault, could it be something else? will rig up auxilary tank tonight and run bike, then check airbox Quote
GSX750Inazuma Posted May 4, 2016 Author Posted May 4, 2016 removed carbs this evening, drained fuel tank, fitted an auxilary tank (carb balancing) to carbs,(suspended higher than workbench) level stayed constant in aux tank, carbs propped upright, no dribbles or leaks out of anywhere, so float valves, and float heights ok? will tackle fuel tap, as i know it to be faulty. Quote
GSX750Inazuma Posted May 4, 2016 Author Posted May 4, 2016 can carbs overfill with the engine running? which would cause excess fuel to enter the airbox? Quote
GSX750Inazuma Posted May 4, 2016 Author Posted May 4, 2016 27 minutes ago, Captain Chaos said: yes. thanks Captain Chaos, so can I prevent it?, and if so, how? I've managed to sort out the petcock, so thats now working as it should, Quote
Captain Chaos Posted May 4, 2016 Posted May 4, 2016 make sure the float needles and O-rings are not leaking, floats are moving freely and fuel is clean, should be OK then. 1 Quote
GSX750Inazuma Posted May 4, 2016 Author Posted May 4, 2016 22 minutes ago, Captain Chaos said: make sure the float needles and O-rings are not leaking, floats are moving freely and fuel is clean, should be OK then. Thanks CC Quote
GSX750Inazuma Posted May 5, 2016 Author Posted May 5, 2016 sumps have been opened, floats checked, adjusted, float valves checked, float valve seats removed, checked and re-inserted, carbs refitted to bike, will test tonight. 1 Quote
Oilyspanner Posted May 5, 2016 Posted May 5, 2016 Check your oil level too, you could have petrol in it, from when the tap and float needles weren't working properly. Quote
GSX750Inazuma Posted May 5, 2016 Author Posted May 5, 2016 (edited) 3 hours ago, Oilyspanner said: Check your oil level too, you could have petrol in it, from when the tap and float needles weren't working properly. already got new oil and filter to replace, oil level is halfway up the window, but for £40, better safe Thanks Oily Edited May 5, 2016 by GSX750Inazuma add text Quote
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