Reply
 
Thread Tools Search this Thread Display Modes
 
Old 04-13-2014, 09:20 AM   #1
Lieutenant
 
cruz'r's Avatar
 
Join Date: Nov 2013
Location: Poulsbo, WA
Posts: 70
Default 5.0 L bogs down when accelerate

2000 Maxum 2400 SCR 5.0L runs smooth on idle after replacement of new cap, rotor and all the spark plugs, but bogs down or engine dies when engage the gear and try to accelerate. I appreciate any advice to correct the problem.
__________________

cruz'r is offline   Reply With Quote
Old 04-13-2014, 11:14 AM   #2
Admiral
 
mmwjr's Avatar
 
Join Date: Feb 2012
Location: Perry Hall, Maryland
Posts: 5,396
Default

When did it last run good in the water, this year or last?
Tuned it up this spring?

Check to make sure you did not mix up the firing order (wires on wrong cap terminals)
Did you replace the wires? If reusing old ones, one may have been damaged.

Other though is to remove fuel filter and pour it into a glass jar looking for water and or crud.
__________________

__________________
Mike
mmwjr is offline   Reply With Quote
Old 04-14-2014, 04:54 AM   #3
Lieutenant
 
cruz'r's Avatar
 
Join Date: Nov 2013
Location: Poulsbo, WA
Posts: 70
Default

Mike, Thanks for quick response. Last run good in the water last September 2013, I tagged the wires as I remove them when I changed the cap and rotor, so firing order is fine. Set all the new spark plug gap to .045 and engine runs smooth on idle, it just dies when accelerate. Removed the fuel filter today and poured gas into clear jar and looks fine and no water or other contaminant.
cruz'r is offline   Reply With Quote
Old 04-14-2014, 11:43 AM   #4
Admiral
 
mmwjr's Avatar
 
Join Date: Feb 2012
Location: Perry Hall, Maryland
Posts: 5,396
Default

What outdrive do you have, Alpha? Is it dieing as soon as you are shifting? If so it may be the shift interupt switch (lower shift cable). This switch kills the ignition while shifting to remove load on a the Alphas dog clutch. The lower cable goes bad and has too much drag allowing the switch to stay closed to long killing the engine.

If you have a Bravo then not the issue as it doen't have this switch.
__________________
Mike
mmwjr is offline   Reply With Quote
Old 04-14-2014, 03:06 PM   #5
Captain
 
Phillbo's Avatar
 
Join Date: Mar 2012
Location: Arizona
Posts: 851
Default

Is it carbed or EFI?
Phillbo is offline   Reply With Quote
Old 04-14-2014, 04:06 PM   #6
Admiral
 
mmwjr's Avatar
 
Join Date: Feb 2012
Location: Perry Hall, Maryland
Posts: 5,396
Default

5.0L should be carbed. L for 2 bbl, LX for 4 bbl.
__________________
Mike
mmwjr is offline   Reply With Quote
Old 04-14-2014, 05:42 PM   #7
Lieutenant
 
cruz'r's Avatar
 
Join Date: Nov 2013
Location: Poulsbo, WA
Posts: 70
Default

Mike, Stern drive is Alpha 1 gen 2, and it has carburetor. Yes, engine is dying when shifting to gear. There is a red button by shift cable says CIRCUIT BREAKER PUSH TO RESET, this probably the shift interrupt switch you're talking about. I'm going to try to reset this and see if that will solve the problem. My next move is to change the anti-siphon valve on top of the tank. I'm not giving up yet, my last resort is take the boat to the shop, don't want to miss the good weather we're having lately. Thanks for all your help, I love this site.
cruz'r is offline   Reply With Quote
Old 04-14-2014, 10:11 PM   #8
Admiral
 
mmwjr's Avatar
 
Join Date: Feb 2012
Location: Perry Hall, Maryland
Posts: 5,396
Default

No that RED button is the 50AMP circuit breaker. The shift interupt is on the shift plate that is mounted to the side of the Starboard elbow. Look for a small micr-switch in the valley of the Y shaped shift lever. The cable from here to the outdrive either needs adjustment or replacement. For the boats age the latter is common.

"engine is dying when shifting to gear" this is a clear sign that the interupt switch is staying engaged to long (bad cable or adjustment)
__________________
Mike
mmwjr is offline   Reply With Quote
Old 04-15-2014, 01:22 AM   #9
Captain
 
pascavone's Avatar
 
Join Date: Nov 2010
Location: Massapequa, New York, United States
Posts: 762
Default

throttle up with the shifter in neutral and see what happens. if ok, then:

Makes sure your prop is turning under the boat, next time you put it in gear. if ok then:

check for black smoke or gas smell of carburetor loading up of choke stuck. if ok then:

Flame retarder, or accelerator pump, if not water in the float bowl, or a sticking float needle valve.

run a by pass gas line from a can and see if its your fuel.
pascavone is offline   Reply With Quote
Old 04-15-2014, 01:24 AM   #10
Lieutenant
 
cruz'r's Avatar
 
Join Date: Nov 2013
Location: Poulsbo, WA
Posts: 70
Default

Mike, Thanks again for all your feedback/reply. Changed the anti-siphon, didn't solve the problem. Taking the boat tomorrow to the shop/marina for repair, in time for me going to California for a week, boat should be ready when I get back. I will post whatever repair done when I get the boat back.
__________________

cruz'r is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Powered by vBadvanced CMPS v3.2.3

All times are GMT. The time now is 10:27 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.