Top and Bottom Cycliner Jetting

**Sun Feb 24, 2013 8:13 pm » Post: #1 » Download Post**

Why does the top cylinder run leaner jetting to the bottom one?

**Sun Feb 24, 2013 8:22 pm » Post: #2 » Download Post**

Because of the layout of the cylinders against the inlets.
_________________
If I have to take the carbs off once more...

**Sun Feb 24, 2013 8:37 pm » Post: #3 » Download Post**

Meaning the bottom cylinder has a longer inlet tract? Is that correct?

Why did they not make the crank cases in such a way that they had identical lengths?

And why are the exhaust stubs different lenghts ... I know, i know, i really am thick, i have accepted it. Very Happy

**Wed Feb 27, 2013 9:08 pm » Post: #4 » Download Post**

simono wrote:
Why did they not make the crank cases in such a way that they had identical lengths?

Because then you have to put a carb down by the front wheel (like a TZ) and it makes a mess of everything.

The RS (and the NSR devoid of it's road gubbins) and even the 500V is a superb exercise in keeping things simple and making them easy to work on.
_________________
Please do not PM me technical questions, if you can't find it on the Forum start a thread