she won't go over the 2000 rpm when in gear

clasavi

Petty Officer 2nd Class
Joined
Mar 8, 2010
Messages
119
Hello,I have a 1998 220 sx Stingray with a 350 Magnum MPI Mercruiser. my problem is when I am in the water, I cant get the boat past 2000rpm while its in gear however It will rev over 5000 rpm in neutral. I've replaced coil, dist cap, plugs and wires. the engine has been rebuilt only a week ago... any suggestions?
 

SeanMcl

Petty Officer 2nd Class
Joined
Apr 3, 2009
Messages
187
Re: she won't go over the 2000 rpm when in gear

Here is an excellent list of troubleshooting for your exact issue. Good luck and update this thread as you move through the list.

http://forums.iboats.com/showthread.php?t=295070

If it was me I'd start by looking for fuel feed issues, a restriction at the air intake, or a restriction in the exhaust.

Also, you might want to do a compression check, just to be sure the engine went back together properly. Since this is a brand new setup you have many more things that could be wrong, but start with the easy stuff, especially if you trust the engine builder.
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,095
Re: she won't go over the 2000 rpm when in gear

Hello,I have a 1998 220 sx Stingray with a 350 Magnum MPI Mercruiser. my problem is when I am in the water, I cant get the boat past 2000rpm while its in gear however It will rev over 5000 rpm in neutral. I've replaced coil, dist cap, plugs and wires. the engine has been rebuilt only a week ago... any suggestions?

Ayuh,.... My guess is,... It's Starvin' for Fuel....
 

jtmarten

Master Chief Petty Officer
Joined
Aug 2, 2004
Messages
825
Re: she won't go over the 2000 rpm when in gear

Suggestion #1: Don't rev a fresh engine to 5K

All that's been suggested, plus making sure you have proper timing/timing advance.
 

dockwrecker

Lieutenant
Joined
Mar 10, 2006
Messages
1,392
Re: she won't go over the 2000 rpm when in gear

Fuel issue. Low float level, clogged filter/water separator.
 
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