Go Back  Offshoreonly.com > Technical > General Q & A
Weber 4 Barrel Carburetor >

Weber 4 Barrel Carburetor

Notices

Weber 4 Barrel Carburetor

Old 04-15-2004, 04:15 AM
  #1  
Registered
Thread Starter
 
Join Date: Jan 2004
Location: Hilo, Hi
Posts: 27
Likes: 0
Received 0 Likes on 0 Posts
Default Weber 4 Barrel Carburetor

Iwas told once that when adjusting my Idle mixture screws I could use a RPM gauge and when turning the screws I should go to the highest point off rpm and that would be the seting of the mixture. Is this true or are there other better ways to do It.
Ailina is offline  
Old 04-15-2004, 08:26 AM
  #2  
Registered
 
Join Date: Jan 2001
Location: ST. Louis, MO, USA
Posts: 1,658
Likes: 0
Received 0 Likes on 0 Posts
Default

See this link:
http://www.edelbrock.com/automotive/eps_sect2.html#idle
Gary Anderson is offline  
Old 04-16-2004, 04:19 AM
  #3  
Registered
Thread Starter
 
Join Date: Jan 2004
Location: Hilo, Hi
Posts: 27
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks Gary it will be a big help .
Ailina is offline  
Old 04-17-2004, 01:29 AM
  #4  
Registered
 
Join Date: May 2003
Posts: 52
Likes: 0
Received 0 Likes on 0 Posts
Default

Anybody know a link for Holley marine carbs?
BajaBuddy is offline  
Old 04-17-2004, 07:55 AM
  #5  
Charter Member #818
Charter Member
 
MACDAD260's Avatar
 
Join Date: Jan 2001
Location: West Michigan & Higgins Lake
Posts: 644
Likes: 0
Received 0 Likes on 0 Posts
Default

http://www.holley.com/HiOctn/ProdLin...FMSC/FMSC.html
MACDAD260 is offline  
Old 04-17-2004, 11:57 AM
  #6  
Registered
 
Join Date: Jan 2002
Location: HARRISON HOT SPRINGS B.C.
Posts: 194
Likes: 0
Received 0 Likes on 0 Posts
Default

MACDAD I'm curios where you ended with your jetiing.I have a very simmilar setup to you.Mine is a marinized zz502 with straigt out exhaust and 9022 carb.Right now I am 90's in the front and 98's in the rear with 6.5 power valve.The engine is new so I am not doing a lot of high rpm testing.It seem real hard to get color on the plugs.I went way rich on the primaries and worked back until the transom soot and rich smell went away.The secondaies don't open until 3900 rpm.It runs good now but seem to have a bit of a stumble around 2000 rpm under high idle load.I don't want to lean out more and risk a mid rpm lean condition.I was wondering if I might need more initial advance to smoothe it out.I am using the stock mark v module (24*).When I get into the power valve curcuit I am still rich but I don't have enough hours on the motor to bag on it at full throttle trying to set up the jetting.I am thinking I might jump to a bigger power valve and smaller secondary jets.My jets seem big to me now from what everyone else is running but I noticed from your previos threads that you wre pretty big to.I should mention that I am at sea level.Got to go I'm trying to grt on the water today.
HARRISONMIRAGE is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
nova26
General Boating Discussion
5
05-20-2008 09:04 AM
boomer
General Boating Discussion
4
07-23-2006 03:12 PM
375stinger
General Q & A
9
02-28-2006 06:49 PM
32 VIC
General Q & A
6
03-29-2005 09:41 AM
Jeffrey
General Q & A
5
06-11-2002 11:31 PM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Quick Reply: Weber 4 Barrel Carburetor


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.