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Motorcycle Discussions => British Bikes => Topic started by: bgreene30 on March 24, 2008, 01:15:19 PM

Title: Performance upgrades B40
Post by: bgreene30 on March 24, 2008, 01:15:19 PM

Any advise on performance upgrades for a 62-63 B40? Larger piston, carb ??

Thanks much.
Cheers.
Bob

Title: Re: Performance upgrades B40
Post by: ximong on April 07, 2008, 07:58:59 PM

You could look to bring to B40 SS90 spec.

That will mean a new piston, larger inlet valve, bigger carb and different cam plus close ratio gears - its worth it.  Also fit electronic ignition - makes starting easier.

I have one in SS90 spec and it goes well

Title: Re: Performance upgrades B40
Post by: bgreene30 on April 09, 2008, 10:29:21 AM

thanks