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battling SU float forks

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sammyb

Luke Skywalker
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I finally figured out why my car has been running so darn rich. First -- the wrong plugs were in there. I got new plugs and it makes a huge difference.

Secondly -- the float bowl forks were all bent wrong. I set them to the manual specs (a 7/16th test bar) but now I'm way too lean.

One of my SUs uses a ballbearing meter/stop. I suppose that should mean I set it differently.

I keep bringing them closer to the top to allow more fuel into the bowl, but still I'm lean. I'm also going richer on the idle mixture screws.

One of these days I'll get it!
 
Hi Sammyb, If you have what is known as a crose jet in one of the carbs the fork setting remains as specified.However, these jets generally require shimming to function correctly. In the kits are usually a set of paper type washers to allow setting the jet height correctly.---Fwiw---Keoke
 
[ QUOTE ]
Secondly -- the float bowl forks were all bent wrong. I set them to the manual specs (a 7/16th test bar) but now I'm way too lean.

One of my SUs uses a ballbearing meter/stop. I suppose that should mean I set it differently.

I keep bringing them closer to the top to allow more fuel into the bowl, but still I'm lean. I'm also going richer on the idle mixture screws.

One of these days I'll get it!

[/ QUOTE ]

Ah, the joys of having carbed cars (strong hint of sarcasm) /ubbthreads/images/graemlins/devilgrin.gif
 
Yes, one of them is a Grosse Jet. I didn't look to see if shims were already installed there.
 
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