So.... I put a 15mm Bing with a 15mm intake on my stock E50 Magnum head.
It runs....but not as good as the old 12mm that was on there originally.
Now...I haven't plug chopped yet or changed jets (as I know I should)....but my main question is this:
Since the port is only 12mm....should I bore it to fit the new 15mm intake? The new intake is CONSIDERABLY larger than the port....and a different shape too.
Will it perform better if I bore the port to match that intake shape and dimension? Does the cylinder displace enough to handle the significant new amount of gas/air coming in?
Or should I say 'fuck it' and just suck it up and slap a Metra or Polini on there.
Oh....and I run with an Estoril, which screamed with the stock carb. Now....the bike is just normal again.