Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
on a recent 3,000 mile round trip to Ireland I averaged 52mpg.
As an update to this thread, I changed the coils and HT leads, which had got hard with age and 'hollowed out' at the plug cap ends.What a difference! - the flat spot at low revs, with occasional temporary lapses onto three cylinders, and the hard starting from cold went away, and mpg is now around 41mpg, which I can happily live with.
I only ask because my F1 also had poor fuel consumption of around 35mpg when I first bought it.After a service and tune up including carb synch the fuel consumption problem was still the same. Met a bloke on a F1 at the Moto Piston rally in Santander and he told me to renew the needle jets with genuine Honda items. He said they would need renewed about every 12,000 to 15,000 miles to maintain decent fuel economy.He was correct, on a recent 3,000 mile round trip to Ireland I averaged 52mpg.
What did you change the coils with, new original pack or a pattern set?
Quote from: Skoti on April 30, 2017, 08:40:51 AMI only ask because my F1 also had poor fuel consumption of around 35mpg when I first bought it.After a service and tune up including carb synch the fuel consumption problem was still the same. Met a bloke on a F1 at the Moto Piston rally in Santander and he told me to renew the needle jets with genuine Honda items. He said they would need renewed about every 12,000 to 15,000 miles to maintain decent fuel economy.He was correct, on a recent 3,000 mile round trip to Ireland I averaged 52mpg. Is that just the jets or needle and jets.?Last tank of fuel on my F1 worked out at 40.2mpg but more often than not 37-39 but I am not exactly gentle with it.That's the slide needle and needle jet (supplied as a set from Honda, part number 16012 392 004)