Six Speed

[yeadon_m]

If fuel is leaking when the bike is left sitting for a long time, it may not be a failed carb float valve but a failing fuel tap. The fuel tap is not intended to allow fuel to flow when the engine is stopped, because there is a spring loaded plunger, which carries an O-ring, that sits on the vacuum operated diaphragm. In old age, that O-ring or the spring weaken or the seat the O-ring sits in gets grubby, and it leaks by, often slowly but steadily.
The carb float valves are intended to greatly limit fuel flow when the float is lifted by the fuel level, but its metal on metal and its unreasonable to expect it to seal 100% for weeks or months, in the face of a slowly leaking fuel tap.
I have had 'new' fuel taps which leaked very slowly on long sitting, though some are fine, and eventually I fitted a two way on/off fuel tap in-line with the fuel hose, and I simply turn it off when I park the bike and throw a sheet over it.
If the carbs leak when the bike is running, different matter! then you need to examine float valves and float heights.
Cheers,
Mike

[jleeb]

Wow, time sure does fly! Got married just out of highschool and the bike has been parked in dads shop since(3+yrs).
From what I recall me and a buddy had all carb issues solved and the tank cleaned and lined to prevent anymore rust in the fuel. Also modified crank case to hold 1400cc of oil.

Things that I believe it is in need of, are:
New chain.
Oil drain plug threads stripped, need drilled and tapped.
Font pads came unglued from brake shoes. I did some research and seems I can still order these.
Front forks need oil and most likely new seals.
Some plastic needs replacing, i.e. turn signal covers

I'm hoping to have enough time this spring to get it cleaned up, registered, and ride able again!

[jleeb]

Here is a picture of my dads parents on the bike when he first bought it!

[keithwwalker]

It can't be that much of an advantage. They also do close ratio conversions, so unless there is a SLOW corner at the tracks you run, not much advantage.
They also have a race spec primary drive.

I think the "new" NOVA 6-speed is likely to be in the region of £3k. I'd like one for the Seeley T500 but you have to ask how much of an advantage it would bring. I'm using a std. box but with a higher 1st gear fitted and it performs pretty well.

Cheers Geoff