Thanks Nick and everyone for the thread. I need to do the same. Last year I
bought an adjustable main jet (because of the altitude here) and still need to
install it.
Cheers,
Randy
SV Grenadine
C&C 30 MK I #79
Ken Caryl, CO
> On May 31, 2025, at 8:23 AM, Floersch.net via CnC-List
> wrote:
>
Thanks for all the input everyone. I’ll get into it and see how it goes.
-Nick
Sent from my iPhone
> On May 30, 2025, at 3:58 PM, Nicholas Floersch wrote:
>
> Hey folks!
>
> Is there any good online guide to removing the carburetor from an Atomic 4 -
> especially in a CNC?
>
> We have a CN
As others might have suggestedhttps://moyermarine.com/
Moyer Marine is the leading authority on A4.
Great small co, awesome history, excellent service and complete reference
manuals with nice prices on all products.
I have used the forum for Q&A and never been disappointed.
Last season I bro
Nicholas:
Removing the carb is not that hard. If you are going to the effort, however,
have it rebuilt while it is off. Moyer has a kit which includes all the
gaskets, jets, etc., for the job and a carburetor rebuilding service is most
likely in your area. Good investment.
Barry McKee
Disco
Shouldn't be difficult like others said.
It should be a Bendix Zenith carb. Parts often available at your local
NAPA. Take it in and show it to them.
Be careful not to bend or alter the bracket that is attached to the float.
It needs to properly close the needle valve.
--
Dennis C.
Touche' 35-
It's not very difficult, just 2 bolts and the fuel line if I'm not mistaken. I had a viking 33 with the A4. I kept a few carbs around. One all cleaned up and ready to go, on board, One installed and one would be the one I took off to clean again. With gas the way it is now, it became a regular
it pretty easy on my 30
close valve on gas tank disconnect hose at the carb and start boat yoga
if you have a 160 pcs wrench it will do pretty much everything on the boat
some will say to install the smallest main jet prevent from washing your
oil,economy and power
it a great engine to work on and
Hi, If you use automotive oil ( anything newer than API SH ) there are too
many additives in order to save friction, htis is bad for a wet clutch ( in
motorcycles since the plates run in oil bath ) and also on the reverse band on
the Atomic transmission. Recommended oil is either motorcycle o
-List Re: Atomic 4 reversing - help, help
Been a long time since I played in an AT4 tranny.
Could the issue be insufficient travel in the shift cable? What happens if you
disconnect the cable from the shifter lever and shift it by hand at the tranny?
Does the collar move far enough that
Been a long time since I played in an AT4 tranny.
Could the issue be insufficient travel in the shift cable? What happens if
you disconnect the cable from the shifter lever and shift it by hand at the
tranny? Does the collar move far enough that the three L-shaped levers
fully disengage off the
I didn’t mean literally calling Moyer Marine, they have an active forum full of
good advice:
https://www.moyermarineforum.com/forums/index.php
Joe
Coquina
Thanks to all of the subscribers that contributed to the list to help with the
costs involved. If you want to show your support to the list
Thks everyone ken at Moyermarine is awesome just need two more like him
So if something happens to him
Or just want get our project done faster
For now I’ll try to take the head off if that not too complicated
On Mon, Apr 12, 2021 at 2:25 PM Tom Buscaglia via CnC-List <
cnc-list@cnc-list.com> wrot
I shredded several knuckles on my 35 MK1 working
on the A4. Moyer is indeed the best source for info and support.
For electronics, in addition to the distributor,
check your plug wires too. Make sure the plugs
and points are properly gapped.
I agree that sticking valves are often the
issu
Can I suggest the Moyer forum for A4 questions? There is a lot of expertise
there on A4s not restricted to A4s in C&Cs 😉
Also I think from the sounds of it you may have a stuck valve or 2 or 3. They
will collectively get you running again. Probably the first question will be
compression numbers
it been converted to
electronic ignition? Thanks, Danny
Original message From: dwight veinot via CnC-List
Date: 4/11/21 7:05 PM (GMT-05:00) To: Stus-List
Cc: dwight veinot Subject:
Stus-List Re: Atomic 4 trouble shootings Check the points and make sure the gap
is set
For now there no compression sadly
On Sun, Apr 11, 2021 at 7:06 PM dwight veinot via CnC-List <
cnc-list@cnc-list.com> wrote:
> Check the points and make sure the gap is set right
>
> On Sun, Apr 11, 2021 at 3:36 PM Joel Delamirande via CnC-List <
> cnc-list@cnc-list.com> wrote:
>
>> Good afterno
And condenser ...
Almost forgot
Paul
From: dwight veinot via CnC-List
Sent: Sunday, April 11, 2021 7:05:41 PM
To: Stus-List
Cc: dwight veinot
Subject: Stus-List Re: Atomic 4 trouble shootings
Check the points and make sure the gap is set right
On Sun, Apr 11
Check the points and make sure the gap is set right
On Sun, Apr 11, 2021 at 3:36 PM Joel Delamirande via CnC-List <
cnc-list@cnc-list.com> wrote:
> Good afternoon gentlemen
> Does anyone have done a overhaul on the atomic 4
> I’m trying to start this engine and getting frustrated of getting no
>
Was it completely overhauled ( camshaft removed ) ? looks like an issue with
spark at the wrong time ( if there is spark at the plugs, not only the coil
).Make sure the distributor is correctly installed for the firing order (
1-4-3-2 I think ).At TDC on the crank/flywheel and both valves clos
>From my A4 days ( 20 years ago) Check your points and cap . . . Then coil . .
>If you don’t an have electronic ignition.
Paul
From: Joel Delamirande via CnC-List
Sent: Sunday, April 11, 2021 2:35:48 PM
To: Stus-List
Cc: Joel Delamirande
Subject: Stus-List A
If my memories from working on cars in the shade of a tree are accurate, oil
and gas shooting out the flame arrester may indicate a valve/ignition timing
problem.
Martin DeYoung
Calypso
1971 C&C 43
Seattle/Port Ludlow
On Apr 11, 2021, at 11:36 AM, Joel Delamirande via CnC-List
wrote:
Good a
Joel,
The Atomic 4 is a simple engine to work on.
In addition to Moyer, you might contact Old Lyme Marina in Connecticutt. I
got parts from them when I was resurrecting my old AT4.
Here's what I did to resurrect it after 10 years or so of it being idled.
1. Pulled plugs and poured a tablespoo
There is also an Atomic 4 Facebook group.
https://www.facebook.com/groups/208227399713304/
Don't forget on Moyer's site there are free 'how-to' videos (
https://moyermarine.com/video_tech-tips/) and for sale videos (
https://moyermarine.com/product-category/videosdvds/), Tech Tips (
https://moyer
None of the mods require changes in the cockpit.
I am going to second (third??) the motion to get on the Moyer forum, it is very
informative.
Joe
Coquina
C&C 35 MK I
Thanks to all of the subscribers that contributed to the list to help with the
costs involved. If you want to show your support to
When you theses electronic upgrades
Do u have to upgrade or modifications the panels in the cockpit
On Thu, Feb 18, 2021 at 2:45 PM Lewis Cooke via CnC-List <
cnc-list@cnc-list.com> wrote:
> First thing first, I would do a compression test to determine how good the
> motor is. The best upgrades
Chances are you will not need a new motor. This is a very simple motor and you
could rebuild the thing with basic tools. There are also lots of parts
available for this engine. Moyer has a forum you could join and ask all your
questions there. My last boat had an A4 and I was on that group.
First thing first, I would do a compression test to determine how good the
motor is. The best upgrades I did where electric fuel pump, electronic
ignition, coil, Indigo electronics thermostat kit which helps with the rear
cylinder running cool and gumming up the valves.
Lewis Cooke
A/V For Play
C&
Joe,
I called and left you a contact, Joe Colautti services many of our
members here in NOLSC. Of late I have been doing mostly my own (I am a
former Ford Model A owner), but I have used him in the past.
http://colauttimarine.com/
yr ftfl svnt etc.
Doug Robinson
On 2/18/21 1:49 PM, Joel D
moved
either. Best prevention is to perform a leak test when you connect
the tank and soap joints.
Chuck
Resolute
1990 C&C 34R
Broad Creek, Magothy River, Md
--
From: "CNC boat owners, cnc-list"
To: "CNC boat owners, cnc-list"
Sent: Wednesday, July 9, 2014 12
t owners, cnc-list"
To: "CNC boat owners, cnc-list"
Sent: Wednesday, July 9, 2014 12:18:13 PM
Subject: Re: Stus-List re Atomic 4 (Indigo)
NEVER lock or latch a propane locker! Repeat, NEVER. If the tank explodes you
want the force to blow upwards through the freely opening
NEVER lock or latch a propane locker! Repeat, NEVER. If the tank
explodes you want the force to blow upwards through the freely opening
hatch. If it is latched or locked, the force will blow downward through
the bottom of your boat. I don't think legal propane lockers even have a
latch. That is
Jon,
If people used the same due dilligence with their gas engines that you do
with propane this would not be an issue.
I have all the propane equipment you do and still turn off the gas at the
tank when I'm done cooking. My propane locker has a pad lock on it, *rule
on the boat is*; Lock open, g
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