Return to the home page...

Go Back   Moyer Marine Atomic 4 Community - Home of the Afourians > Discussion Topics > Troubleshooting

Reply
 
Thread Tools Display Modes
  #1   IP: 108.73.104.11
Old 05-27-2013, 09:49 AM
Lcliou's Avatar
Lcliou Lcliou is offline
Member
 
Join Date: May 2013
Location: Cleveland, Ohio
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Unhappy Engine stalls when choke is let go

Hi, after dry docking for 2 years we are ready to sail, but the A4 has trouble: It can be started as usual with the choke pulled out. But after warming up to the operating temperature, whenever I let go the choke, it stalls out immediately.

It will run, even under load, so long as the choke is pulled out. But it immediately stalls when choke is released, every time.

What's the problem, and how can I correct it?

Please help!

Larry Liou
Pearson Vanguard
Cleveland Ohio
Reply With Quote
  #2   IP: 24.152.131.153
Old 05-27-2013, 10:46 AM
ndutton's Avatar
ndutton ndutton is offline
Afourian MVP
 
Join Date: May 2009
Location: Torrance, CA
Posts: 9,619
Thanks: 198
Thanked 2,208 Times in 1,425 Posts
Time to rebuild the carburetor. Clearly the mixture is off likely due to clogged ports and jets, perhaps even vacuum leaks at the throttle shaft seals.

And welcome!
__________________
Neil
1977 Catalina 30
San Pedro, California
prior boats 1987 Westsail 32, 1970 Catalina 22
Had my hands in a few others
Reply With Quote
  #3   IP: 68.56.139.11
Old 05-27-2013, 10:54 AM
romantic comedy's Avatar
romantic comedy romantic comedy is offline
Afourian MVP
 
Join Date: May 2007
Location: florida
Posts: 1,912
Thanks: 13
Thanked 118 Times in 100 Posts
I concur Captain Neil

You need to rebuild that carb. Remember to get a carb gasket. you can get one right here from MMI.
Reply With Quote
  #4   IP: 76.7.135.1
Old 05-27-2013, 09:02 PM
Marian Claire's Avatar
Marian Claire Marian Claire is offline
Afourian MVP
 
Join Date: Aug 2007
Posts: 1,797
Thanks: 33
Thanked 129 Times in 94 Posts
Welcome to the forum. I suspect the others are correct. But just for info pull the flame arrestor and check the function of the choke valve. Dan S/V Marian Claire
Reply With Quote
Reply

Thread Tools
Display Modes

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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Engine won't start and I'm at my wits-end ChicagoNewport27 Troubleshooting 64 07-23-2011 12:47 AM
Engine only runs at full or partial choke gary gerber Fuel System 21 10-20-2010 11:30 AM
A4 trivia whats wrong with this engine joec43 Troubleshooting 8 02-24-2009 10:29 AM
requires full choke to keep engine running. Dan Hallinan Troubleshooting 2 06-12-2007 07:09 AM
Engine stalls jdunning Troubleshooting 1 05-31-2007 07:14 PM


All times are GMT -4. The time now is 04:41 AM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2024, vBulletin Solutions, Inc.


Universal® is a registered trademark of Westerbeke Corporation

Copyright © 2004-2024 Moyer Marine Inc.

All Rights Reserved