200 hp Mercury EFI won't accelerate past 1600 RPM's

MeanWS6sp · #1 March 14th, 2005, 11:00 AM

Would this be the stator? Its EFI so I'm hoping its not fuel....

prolinews · #2 March 14th, 2005, 04:03 PM

I would think it would be fuel related before electronics . I have never seen a motor with a bad stator crank. fuel pump filters plugs etc start with the simple stuff first.

Kenny Bush · #3 March 15th, 2005, 03:58 AM

Better check fuel system first as stated earlier.

rodbolt · #4 March 15th, 2005, 04:07 AM

what year 200?

the system changed slightly over the years.

have you made sure the vapor seperator is actually getting fuel? any other running symptoms? drain a sample from the vapor seperator and check for water.

rodbolt · #5 March 15th, 2005, 04:13 AM

hello again

have you done the basics of two stroke tests? compression and spark. verify them first before doing anything else. actually its a basics forALL internal combustion articulated rod desighn engines. its a must.

suck,squeeze bang and blow.

its worked that way since the 1800's and most likly will past the end of the 2000"s.

linmat · #6 March 15th, 2005, 05:46 AM

I had the same problem with my older 1988 200hp and it was the stator.

MeanWS6sp · #7 March 15th, 2005, 10:14 AM

Wow, thanks for all the responses! I haven't done the compression test, but we've changed the plugs, poured out the filter, I think I'm going to buy a new one today and try it. Apparently the stator has a high end and low end...is that true...

linmat · #8 March 17th, 2005, 07:26 AM

Yep, it's true - it was the high end on mine that died.