Slide (Throttle Body)

[Razor]

I have been having trouble with running on my engine - some suggest carb slide. My question is the about the direction of the slide - the (dome) cut out side of the slide goes towards the airbox ?. Reading other threads state different dome sizes affect the running aswell

[Dave B]

The purpose of the cutaway, is to hold a slug of fuel/air mix inside the slide. When the throttle is opened quickly, that fuel mix is sucked into the engine to keep it from going lean during the time it takes for the main jet to start flowing.
The downside is that a larger cutaway causes more turbulance at full throttle.
A big cutaway gives a better pick up for the couple of seconds after you whack the throttle open.
A small cutaway gives better performance at full throttle, but may bog if you do whack the throttle open.
So the best cutaway size depends on your priorities and your riding style.
The cutaway definitely faces the incoming air. Once you know what it's doing, that's obvious.

[Razor]

Thanks for that - got my hat on with a big 'D' on it, slides wrong way round!!!!. Now correct so should run a lot better - A FEW DAYS LATER AND IT DID RUN PROPERLY