Exhaust System Topics New and old exhaust system discussions. Fitment issues to sound bites and suggestions. Post them here.
Sponsored by:
Sponsored by: Jekill and Hyde

hesitation at throttle

Thread Tools
 
Search this Thread
 
  #11  
Old 07-13-2009, 09:16 PM
Old Gunny's Avatar
Old Gunny
Old Gunny is offline
Road Warrior
Join Date: Nov 2007
Posts: 1,984
Likes: 0
Received 7 Likes on 7 Posts
Default

Mine does not do this and it is a 58mm SE TB on a 2008 107.
My Holly 850 on a big block Corvett did not do this. Back when I was much younger.

But they did at first. Fall on their face. Big gaspe of nothing. Way too much air.

What ever you have, nomatter what it is, there is a designed mechanisum to adjust the fuel going to the engine when you wing the throddle open.
Acelerator pump or acelerator enricher or whatever, it's there and it needs to be adjusted to "add more fuel" at that point. What you see is a lean condition, simple as that.
Not counting air leaks but that has been checked right?
 

Last edited by Old Gunny; 07-13-2009 at 09:20 PM.
  #12  
Old 07-14-2009, 06:42 PM
seniorsuperglideE8's Avatar
seniorsuperglideE8
seniorsuperglideE8 is offline
Supporter
Veteran: Navy
Join Date: Jan 2007
Location: along the shore of Mishigami
Posts: 15,720
Received 4,799 Likes on 2,539 Posts
Default

That's known in the carb world as a carb fart. The carb air fuel mix screw is preset at the factory for a the air fuel ratio, AFR, of (I believe) 14.1:1 . The air /fuel mixture screw can be turned out ( to richen) a little at a time until the pops go away. What size jets have been installed?
 
  #13  
Old 07-15-2009, 10:29 AM
seniorsuperglideE8's Avatar
seniorsuperglideE8
seniorsuperglideE8 is offline
Supporter
Veteran: Navy
Join Date: Jan 2007
Location: along the shore of Mishigami
Posts: 15,720
Received 4,799 Likes on 2,539 Posts
Default

Here's the setup Iused when my motor was a stage 1. Stock jets, 2 1/2 turns on the mixture screw and two #4 brass washers on the needle. If the carb popped I just richened the mix about 1/8 of a turn. Runs good.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
conmore
Touring Models
20
02-02-2012 08:17 PM
blksoftail
Softail Models
4
07-20-2011 10:24 AM
blusmbl
Touring Models
14
03-15-2011 06:18 PM
Burleson64
Ignition/Tuner/ECM/Fuel Injection
8
06-18-2010 04:44 AM
thehueg
Touring Models
8
08-15-2009 04:20 PM



Quick Reply: hesitation at throttle



All times are GMT -5. The time now is 12:22 AM.