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« on: 28 February 2016, 09:15:09 am »
Just wondering what your opinions are on the crossover? I made the all4 adaptor up, and fitted it after syncing my carbs (I rode the bike with them blanked first). First though was that the idle was WAY lower, I had to screw in the adjuster a lot. It takes a long time for the engine to get hot enough to idle properly, more like my 2 stroke. And secondly, it did smooth out the power, but also feels like there might be less?
Now the 1-4/2-3 makes a little more sense to me, as when the valves are closed there will be a positive pressure in one inlet tract, while the other is drawing a vacuum... Now, if the carb with open valves is drawing from this positive pressure, surely this reduces the amount of draw through it's carb, in which lower velocity would result in less fuel being delivered to the cylinder, as its the velocity that aids fuelling?
I'm pretty much set on removing the system, but if I'm wrong about 1-4/2-3, it might pose some benefits... Just wondering what you've all found works best?
Cheers!