[Healeys] Choke return springs

[Daniel and Diane White]

Here is a follow up on the choke problem(s) with the tri-carb.  First 
problem- couldn't get enough travel when pulling out the choke knob to 
pull down the jet tubes although fast idle cam would operate to increase 
rpm's.  Second problem- drag/friction wouldn't allow jet tubes to return 
to "non-choke" position.  First problem solved by undoing the trunion on 
the fast idle cam, then moving the cam to the point where jet tube just 
starts to pull down, then pull the choke cable taught to eliminate any 
slack, then tighten the trunion.  Do this for all three.  Now when the 
choke knob is pulled out about an inch the jet tubes pull down and do 
their job.  I'll have to set the individual fast idles to 1,000 rpm's 
tomorrow.  Second problem no longer exists so I have no need to install 
additional springs to help the jet tubes return to the non-choke 
position, although I will take the suggestions to go to a 
bicycle/motorcycle shop and replace the cables with teflon ones as my 
choke cables look pretty tired.  I manually worked the jet tubes via the 
cam and they return just fine which I think is a real testament to the 
SU carbs considering the age and over 100,000 miles.  A note to Jim 
Shope...I can furnish pictures of the cam set-up if you would like them.
Regards,
Dan White
1962 BN7 Mk II