Dauntless 2g carb revving problem.

1965 CJ5 225 v6 2g carb, HEI, headers with dual exhaust, double roller timing chain, everything else stock. I rebuilt the carb with a kit from autozone and the engine runs great except for the fact I can only ease the trottle, if I try to rev it just bogs down and will most likely stall if I dont let off the gas and ease it. New fuel pump and new fuel filter. I bought the Jeep with a blown engine, 3 broken rods and 2 holes in block. I replaced it with a craigslist bought engine, I did a refresh rebuild on, new bearings and gaskets. I took a chance on the top end and eveything is fine, good compression and no blue smoke, sometimes we do get lucky. What should I look at to the bog down issue, I hope it is just an adjustment, I set everything as to the rebuild kit instructions. It starts, idles, and runs great when rolling.
Thanks in advance to any advise to solve this problem. Taking off from a stop on an uphill is problematic.

 

check timing. Make sure choke is off.

 

:iagree: Seen those balls stuck in the passageway. My '68, Fussy, has the issue that the accelerator pump casting bore is egg-shaped. I did what I could to correct it since the seal would flip over due to the egg shape. Drives fine, once it's fully warm. Definite stutter accelerating when cold. Gotta feather the gas. Have the carb from the 69 half cab I diced. Maybe I'll have a better core to work with for Fussy.

 

If there is a stuck ball in the accelerator passage then it has the wrong ball in there. The kit comes with two balls, one bigger than the other. The smaller of the two is for the accelerator pump well. It's small enough that it should never get stuck. If it does then your carb is really gunked up.

 

Same problem here with my 198. Feathering is needed to keep running. I am unfamiliar with this motor, carb etc...I know the original F motor had a manual choke but not sure about these. I guess i will need to look at it closer and check out the rebuild kit. Any online resources one could look at?

 

Thanks for the encouragement. I think I am most nervous about the settings and adjustments. Idle I can figure but the mixtures etc...lost. I can take anything apart and put it back.

 

I chased this same problem. It seems to be common. In my research I found that a vacuum leak can cause this to happen. I never did find what my problem was - it just started working well on it's own. From reading this and other posts it looks like cleaning the carb well and keeping track of your balls is the key. (Can we say that on here?)

 

are you talking about this? Or is there another model?

http://m.harborfreight.com/25-liter-ultrasonic-cleaner-95563.html

 

How did u figure out the carb settings once you rebuild the carb?

 

Success. Finally got around to repairing the problem. I took it apart and made sure the ball bearing was in correctly and clean, but same results. I did this months ago. Figuring it was a problem with the accelerator, I purchased a new one from mikes carburators which needed the number on the carb and indeed it was different. Autozone only wanted the year, make, model, and engine, for the rebuild kit. So after only working 1/2 day today and the weather not too cold it would be a good day to try. Plus better than being at the inlaws the day before thanksgiving. So I changed it out and what a difference, it idles better and excelerates better. I had the idle high before so it was easier to get going on hills, now I have it down to where it should be. Thanks to all who helped in solving this problem.

 

Good to hear.