Has anyone ever bothered to dyno test a stock XS650 motor running on BS34 carbs, and then tested the same engine again with BS38 carbs fitted ?
I'm sorting out parts for my '78 650SE, which was imported into the UK from the US.
Factory carbs were BS38's which I've still got, but need some work.
I've got a better set of chrome top BS34's, along with the rubber manifolds and airboxes.
I'm just wondering if I'll lose much in terms of performance if I fit the smaller carbs ?
I'm sorting out parts for my '78 650SE, which was imported into the UK from the US.
Factory carbs were BS38's which I've still got, but need some work.
I've got a better set of chrome top BS34's, along with the rubber manifolds and airboxes.
I'm just wondering if I'll lose much in terms of performance if I fit the smaller carbs ?