Need some help with a boat problem

[QUOTE=stoobie;342073]I have a similar problem with my 40 hp Merc. it wont rev over 2600 rpm in the water while in forward, but if I rev it in neut or rev it revs to 5200+ rpm. It will rev while in forward when its hooked up the muffs on the hose but not on the water. It ran a little rough one weekend so I ran some seafoam thru it while hooked up to the hose and took it out the next weekend find I had this current problem. Any ideas. The plugs seem fine and the compression seems fine.[/QUOTE]

Jet clogged on carb.

sORRY,DOUBLE POST

You say the plugs "SEEM" fine. Have you changed them? If so it may be the stator.

Final Results..My bro took the boat back to the dealer...seems the linkage was not set right, they were more than helpful, after a quick adjusment they took it on the river and it ran like a champ he said..ran 5400-5600 rpms and came up on a plane, with two people in the boat. He was totally satisfied. Thanks to everyone who replied. Warren

I love a happy ending!!!

[QUOTE=Trophycats;342182]Final Results..My bro took the boat back to the dealer...seems the linkage was not set right, they were more than helpful, after a quick adjusment they took it on the river and it ran like a champ he said..ran 5400-5600 rpms and came up on a plane, with two people in the boat. He was totally satisfied. Thanks to everyone who replied. Warren[/QUOTE]

That is what I thought it sounded like to me ..... the shifting into reverse was the main clue that something was wrong