To answer the question of Bill regarding how the secondary throttle can influence the idle:
If the secondary throttle is a little bit to far open on idle the progression holes of the secondary stage will draw fuel and air and by doing that it will influence the idle which can result in a rough idle or/and idling to high and also in high fuel consumption
You want this secondary throttle as closed as possible without a sticking throttle valve.
Regards,
Peter
If the secondary throttle is a little bit to far open on idle the progression holes of the secondary stage will draw fuel and air and by doing that it will influence the idle which can result in a rough idle or/and idling to high and also in high fuel consumption
You want this secondary throttle as closed as possible without a sticking throttle valve.
Regards,
Peter