• Hey Guest!
    British Car Forum has been supporting enthusiasts for over 25 years by providing a great place to share our love for British cars. You can support our efforts by upgrading your membership for less than the dues of most car clubs. There are some perks with a member upgrade!
    **Upgrade Now**
    (PS: Upgraded members don't see this banner, nor will you see the Google ads that appear on the site.)
Tips
Tips

HD8'S

Share this page

D

daily

Senior Member
Offline
just went through my HD8'S,came out sweet!!!
put new choke cables in also,when adj cables @ jet end [1.5mm
slack]book says as arm just engages jet lever,to set fast idle screws @ about 500rpm.this setting,with choke released,will not allow butterflies to close fully.
in all that i've read it is indicated that the first motion in choke process will address the idle,then further motion will address mixture. for some reason it's ass backward on my setup.where have i gone astray?????
with respect 59er
 
Butterflies should be closed when setting Idle speed with slow Idle Adj. screws.
You may have to check timing if you can't get 500 RPM. I use a 2 Thou. feeler gauge betweem hammer and anvil to be sure choke is not causing butterflies
are not being held open when adjusting idle.
 
"65" is correct: "Butterflies should be closed when setting Idle speed with slow Idle Adj. screws."

You are correct in having 1.5 - 1.6 mm slack between the choke lever and jet adjusting arm.

When you pull the choke cables that 1.5 mm, just before you move the jet levers, you set the fast idle speed to 1,000 RPM when hot.
 
Butterflies should be closed when setting Idle speed with slow Idle Adj. screws.

Yeah, that is what the book says but experience has shown that in a large number of cases it is a balancing act between having a little butterfly open and properly adjusting the tick over screw.

However, the sequence is the right way around and not "ass backwards"------Keoke-- :laugh:
 
Back
Top