fuel tap conversion
#1
fuel tap conversion
Hello, i am from france and i have an early cbr1000 and i have a problem. The fuel systems leaks like a sieve. I have replaced the the float and needle and float bowl o rings. I have replaced the fuel lines that had split under pressure from the fuel pump as they were old. I tested for leaks from the carbs on the bench by gravity with a remote tank...all good with float heights set at 9.5 mm. When it goes on the the bike with the fuel pump running with the bike, the 2 left hand carbs start to leak. I'm running out of ideas. Maybe fitting a fuel tap that gravity feeds the carbs? The problem i have with this is finding a fuel tap with a vacuum fitting that will have the same thread fitting as the original, as the alternative tap in the honda parts micro fiesche looks to be a different fitting. Old cbr900 blade looks similar but i cant tell exactly what size its mounting threads are.
Any advice would be greatly appreciated
kind regards Hug
https://fr.fowlersparts.co.uk/parts/...f-yb/fuel-tank
Any advice would be greatly appreciated
kind regards Hug
https://fr.fowlersparts.co.uk/parts/...f-yb/fuel-tank
#2
#3
the fuel pump on the CBR1000 is not high-pressure, are you sure the correct one is installed? It sounds like it's overwhelming the float valves.
You don't really need the vacuum shutoff on the fuel tap - that's really just incase you forget to turn the tap off when you stop the bike.
You don't really need the vacuum shutoff on the fuel tap - that's really just incase you forget to turn the tap off when you stop the bike.
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