Go Back   Maxum Boat Owners Club - Forum > Maxum Specific > Sport Cruisers
Click Here to Login
Register FAQ Community Calendar Today's Posts Log in

Reply
 
Thread Tools Search this Thread Display Modes
 
Old 10-16-2022, 08:57 PM   #1
Lt. JG
 
Join Date: Dec 2019
Posts: 28
Default Carburate tuning

I recently had a new carby kit put on the Edelbrock.
But not it is running rich. The mechanic claims it is set as per instructions.
I want to have a play around with the mixture.
I watched some YouTube videos, bought a vacuum gauge/kit, went to tune it and the carby doesn't look like the one on YouTube.

I have found the numbers stamped onto it.
There appears to be attachment that a hose should fit on.
barrels.

Any help would be appreciated.
Attached Thumbnails
carby numbers.jpg   carby port.jpg   carby starboard.jpg   carby front.jpg  
__________________

ynot is offline   Reply With Quote
Old 10-16-2022, 11:19 PM   #2
Captain
 
donald's Avatar
 
Join Date: Jun 2016
Location: Mn.
Posts: 663
Default

What engine do you have?
please give all the info on the boat the you can as it helps us help you.
The carb you have is an Endelbrock 1409 with is a marine carb.
I do not think that there is a port that you can attach a vacuum gauge.
The two screws on the front at base of carb are the idle mixture screws, with the engine off turn them in all the way till they bottom out lightly (DO NOT TIGHTEN THEM AS YOU WILL DAMAGE THEM, ONLY LIGHTLY) . Then turn them out 1 1/2turns, you should be able to start engine and let it warm up before you do any more adjwsusting of these screws. turn each one a little untill engine runs smooth and check for correct idle speed and readjust as needed.

Don
__________________

__________________
1995 Maxum 2400 SCR 5.7 A1 G2 LUNA DE MIEL SOLD
1988 Bayliner 2455 5.0 IO (sold)
1987 Seaswerl 18ft C. Cabin 4.3 IO(lost in fire)
2012 South Bay Pontoon
donald is offline   Reply With Quote
Old 10-17-2022, 12:47 AM   #3
Admiral
 
mmwjr's Avatar
 
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 10,232
Default

As Don said this is a 1409 marine carburetor. Not sure what video you viewed but I would contact Edelbrock for the instructions to adjust the carburetor, they have very good customer service.
__________________
1997 Silverton 362, 7.4 Crusaders
1997 2400 SCR, 5.7 Vortec / Bravo 2

Mike
mmwjr is offline   Reply With Quote
Old 10-17-2022, 01:10 AM   #4
Lt. JG
 
Join Date: Dec 2019
Posts: 28
Default

Thanks for good advice as usual.
The motor is a GM 5.7 ltr V8
I will look up Edelbrock Australia and see what I can come up with.

Regards Tony
ynot is offline   Reply With Quote
Reply


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 Off
Pingbacks are Off
Refbacks are Off


Powered by vBadvanced CMPS v3.2.3

All times are GMT. The time now is 06:09 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2024, vBulletin Solutions, Inc.