|
Choke -- the car currently has only one cable that goes from the
> choke to the carbs, and I need two. I can fix that but it will
Strangely it will start quite happily with just one choke connected, as per the original stromberg setup
If I remember correctly (it's been months since I did
> anything with the SUs) if you raise the piston a little bit and
> the idle speeds up, the mixture is lean, and if it slows down
> the mixture is rich.
You need to first balance the carbs and get the timing right. You will need to use a fairly rich needle, KD at least???
Then set the basic setting on the carb, each needle down 6 flats. I assume you have removed or jammed the secondary flaps open?
Richen the carbs equally by backing off each jet equally until you have the fastest idle speed, then lean off two flats.
Check the two carbs are still pulling equal amounts of air, if necessary re adjust the idle, equally on each carb
Lift each piston in turn with the pin on the body. If the engine speeds up lean off the other carb a flat, iff the idle drops right off richen up the other carb a flat. Neither carb should need the jet adjusting differently from the other by 3 or 4 flats.
The carbs are right when you lift the pin and the engine nte picks up very slightly and then drops the idle by 300 revs or so.
Before you start make sure you have a proper float level. If the level is too high the petrol will syphon into the carb rather than the vacuum of the engine pulling it out of the jet and you'll never get it set right. Equally if the ignition timing is way out settings based on idle will be spurious.
Regards
|
