You need to experiment with them, with the engine running, to eventually get the best height settings,
along with the mixture screws, to give a good smooth consistent idle.
This also involves setting the throttle cables so it neatly lifts both slides at the same time.
Synchronising the throttles, very important for good running.
While you can take a stab at the settings before starting the engine - and hope that it starts ! -
it all really needs to be done with the engine running.
Don't forget too that the engine needs to be warmed up for the best settings.
It is all a bit of a juggling act.
Don't gas yourself in the basement doing this either...
If it is legal to go for a spin around the block trying out various settings, this gives a good measure of how things are going - not stalling when you pull in the clutch to stop, etc.
hth
along with the mixture screws, to give a good smooth consistent idle.
This also involves setting the throttle cables so it neatly lifts both slides at the same time.
Synchronising the throttles, very important for good running.
While you can take a stab at the settings before starting the engine - and hope that it starts ! -
it all really needs to be done with the engine running.
Don't forget too that the engine needs to be warmed up for the best settings.
It is all a bit of a juggling act.
Don't gas yourself in the basement doing this either...
If it is legal to go for a spin around the block trying out various settings, this gives a good measure of how things are going - not stalling when you pull in the clutch to stop, etc.
hth