Cold Start Issue - 1980 L48 Auto

Reply Subscribe

Thread Tools

Search this Thread

Sep 17, 2007 | 11:18 AM

Darrel1

Thread Starter

Racer

Joined: Oct 2005

Posts: 457

Likes: 1

From: Royal Oak Michigan

Cold Start Issue - 1980 L48 Auto

1980 L48 auto Stock

A few days ago I adjusted my idle a little lower. The vehicle seemed to be idling to high at stop lights (around 1000rpms) so I adjusted it down to around 600/700 rpms.

Well now at a cold start the engine runs really rough, smoking etc.. for the first 1 minute or so and even stalls sometimes. Do I need to adjust something else (idle mixture screw on the carb??) because of the lower rpm at idle? My electric choke is working and I pulled a couple of plugs and they are a light brown/tan.

Any help would be appreciated.

Darrel1

Sep 17, 2007 | 07:17 PM

Durango_Boy

Team Owner

Joined: Aug 2006

Posts: 24,125

Likes: 15

From: Columbia Missouri

The choke may be working, but is it adjusted properly? When cold, the choke blade should be right about 3/8" from being closed.

Check this to see, and adjust if needed.

Sep 18, 2007 | 08:46 AM

Darrel1

Thread Starter

Racer

Joined: Oct 2005

Posts: 457

Likes: 1

From: Royal Oak Michigan

Quote:

Originally Posted by Durango_boy

The choke may be working, but is it adjusted properly? When cold, the choke blade should be right about 3/8" from being closed.

Check this to see, and adjust if needed.

I am thinking it is time to go thru my entire ignition system- only happends now when the weather is chilly. Me adjusting the RPMs was just a coincidence with the cold weather.

Time to learn

Darrel1

Reply Subscribe