Need help identifying H/W 5200 adjustments

[JC]

Just installed a H/W 5200 w/Stovebolt adapter on my '68 Bronco. Man did it ever make a difference! It appears to run fine right out of the box too! This is great because I really know very little about carb adjustment, which brings me to my question. Would someone please look at the following pics and tell me what screws A, B,C, & D are for?

I'd like to know which screw performs which function if I need to attempt any adjustments. Also, if you have any advice about making any adjustments, that would be great too.

http://rides.webshots.com/photo/2719557740066089935WoPJll?vhost=rides

http://rides.webshots.com/photo/2383135390066089935kxcGDT?vhost=rides

 

[l3n]

A is primary idle jet

B is fast idle cam

C is the idle mix, yours has the cap to prevent adjusting, which is kind of bad.

D is the secondary idle jet.


- You don't adjust the idle jets, except by unscrewing it and swapping out the jet. They should be screwed in all the way (but not torqued down).

 

[JC]

l3n, THANK YOU!

 

[Williboy]

You do want to make sure the idle jets are "snug" During my 5200 jet adventures I had my primary idle jet fall out and luckily found it wedge in motor mount.

If runs good with what you have I say go for it as is. Make sure your not too rich or lean or way out of adjustment and enjoy.Without a AFR meter or a Dyno you really can't tell what is going on if it's close.

If you do decide to go jetting, read all the post on 5200 jetting, especially the sticky post. I also recommend buying the 5200 book online, ($10) it simplifies the carb and lets you understand what your doing.