Why?

[riffraff]

I'm just curious. Besides easier to set up when it's all said and done. What is the advantage of a single or double automotive style carbs? Fuel milage? performance? Or is it just because it can be done. The factory four seem more than up tothe task for me.

[FirstYearDeek]

The most common reason given for a conversion such as this is that the "factory four" are difficult to keep in tune. Let's face it, fueling issues are hard enough to pin down when there's one carb; four is that much more difficult.

There's also an argument for simplicity with regards to maintenance or failure modes. Four carbs have four times the moving parts, four times the opportunity to fail, four times the work when something goes wrong, etc. etc.

There's no argument for single carb setup being more efficient or having better potential for all-around performance... no single carb setup is going to do everything as well as four properly tuned carbs.

A twin carb setup on two plenums (one per cylinder bank) is probably the absolute pinnacle of performance and efficiency, as it is an improvement in almost every way over the stock setup. This does add some complexity, however but is still a step up from stock.

-Deek

[FirstYearDeek]

I should specify that the above is true in naturally aspirated setups only. When you're under boost a lot of things change.

-Deek

[vagrant50]

Pretty much nailed it on the head. I have two carbs on my 750 instead of four. I have one on my Goldwing. Reason I hate working on carbs number one. As for the Goldwing well that is stage one. Stage two is still in the research area.

Brent

[earthquake]

Don't forget the COOL FACTOR of having a set of Weber's or Dellorto's hanging out in the wind, and they sound great too!!

Casey