Initial Acceleration Problem -
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back > General Technical Discussions > Engines & Drivetrain > Initial Acceleration Problem

The Jeep Forum Discount is ON!FS: Jeep Fog Light LED Bulbs! Several Brightness Options! FS: Wranger BRIGHT License Plate LED! Just $3! Great value

Unread 05-22-2012, 12:20 PM   #1
Registered User
1974 CJ5 
Join Date: May 2012
Location: Wrightwood, Ca.
Posts: 1
Initial Acceleration Problem

I've got a 74 CJ5, with a Carter YF carb, manual choke and electronic distributor.

Problem is hesitation when I initially accelerate in idle, 1st & 2nd gear. When the engine heats up well, the problem mostly disappears. I've rebuilt the carb, have the idle mixture set more or less correctly for my altitude (6,000 feet) and have sealed all vacuum leaks; though I could probably use a new exhaust gasket, and perhaps that would solve the problem.

But, oddly enough when I have it running, and I manually give it gas...there's no hesititation. But, if I get in and hit the gas pedal...there it is. I've replaced the gas pedal to throttle it's not that. And, if I close the choke, let's say 1/8..then there's no hesitation when I apply the gas pedal.

This is not a terrible problem as this baby can really run out. I live in the mountains and even going up a semi-steep grade i'm going 60 with plenty of pedal left.

Anyhow, any hints or insights would be appreciated.

Wrightwood, Ca. 92397

peterc is offline   Reply With Quote Quick reply to this message

Quick Reply

Register Now

In order to be able to post messages on the forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools

Suggested Threads

Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. is not in any way associated with Jeep or the Chrysler Corp.