[Mgs] setting jets in su's

[Paul Hunt]

Hmmm, I wouldn't say that.

>From the initial setting you adjust each carb separately until you get the
required highest idle speed or desired response from the lifting pin.  After
adjusting the 2nd carb the 1st will almost certainly require a further small
tweak to get it back to where it should be, and then the 2nd carb should be
checked again and so on.  Only a couple of iterations should be required.
This is because the balance pipe on the 4-cylinder engine means that the front
cylinders draw some mixture from the rear carb and vice-versa, so the carbs
are *interdependent* (not independent).  All this is after adjusting the idle
screws to get the correct air-flow balance, interconnecting shaft clamps
loosened.  Then you do the same with the choke.

It is *after* you have finished setting up that any future carb adjustments
must be made by the same amount in the same direction, otherwise you destroy
the balance and have to do the setting-up from scratch again.

PaulH.
  ----- Original Message -----


  ...  From that point forward, the jet heights should be adjusted by equal
amounts until the correct summed charge mixture is achieved.