Back to the 400s

[Davw]

After a few years messing with the Pre-Inj 600 next year its back to the zxr400 for me. I toyed with the idea of a Minitwin but when I fired the old 400 up yesterday that convinced me.
So, fettling begins. new paint, new seat unit, change the gearbox from the "roads" SP to a more launch friendly standard box, clearances, check oil change and off we go.
the 400 has been in the hands of Robbie Lyall while I have been messing with the 600 so it is going to have to get used to being treated with much more care and respect (and also going much slower) now its back with me!!!!

[Mori Man]

After a few years messing with the Pre-Inj 600 next year its back to the zxr400 for me. I toyed with the idea of a Minitwin but when I fired the old 400 up yesterday that convinced me.
So, fettling begins. new paint, new seat unit, change the gearbox from the "roads" SP to a more launch friendly standard box, clearances, check oil change and off we go.
the 400 has been in the hands of Robbie Lyall while I have been messing with the 600 so it is going to have to get used to being treated with much more care and respect (and also going much slower) now its back with me!!!!

Not all Gearboxes were made the same - std box is still not where it's at - study all boxes , you can build something better Not as good as the F3 unit but pretty darn close

Not sure with rules but now have a 471cc kit - this puts it above 90BHP , all your first generation 600 carb' bikes were well bellow this

My dilemma is putting my works F3 engine under the knife for a 471 upgrade and while at it have it carbon diamond coated internally to see it push over 100bhp on carb's

Running costs make it around 6,000 GBP but name a 600cc bike that sits and looks like a ZXR400 - more so the H/J ?

[wilko]

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Not all Gearboxes were made the same - std box is still not where it's at - study all boxes , you can build something better Not as good as the F3 unit but pretty darn close

Not sure with rules but now have a 471cc kit - this puts it above 90BHP , all your first generation 600 carb' bikes were well bellow this

My dilemma is putting my works F3 engine under the knife for a 471 upgrade and while at it have it carbon diamond coated internally to see it push over 100bhp on carb's

Running costs make it around 6,000 GBP but name a 600cc bike that sits and looks like a ZXR400 - more so the H/J ?

Did you ever get around to the 471 upgrade? would be a good read to hear you thoughts on it and how it rode.

[Mori Man]

Not as yet - been a year of big change .

Will think about the ZXRs again next year when the dust has settled