Please help

wtxmale

Seaman Apprentice
Joined
Apr 11, 2009
Messages
32
I have a 1999 mercury opti max 200hp....it bogs when trying to accelerate...gets to about 2000rpm and just bogs,,,return to nuetral and give it full throttle and it usually takes off,,sometimes it takes a few try's..then runs great,,ok here is all i've done,over past two years to correct with no luck,,,also i have had it in the shop many times,,mechanic is at a loss...also called mercury tech,,all i got was ,,have mechanic call them,,,replaced...plugs...throttle position sensor,,,nuetral switch,,fuel diaphram,,,tested fuel pumps,,,replaced check valve on return fuel line,,,relaced fuel line and bulb,,,had it on computer,,no faults..also replaced one each,,fuel and air injectors,,put new plugs in and ran a few hours,,one plug looked just a little different so replaced those injectors,,,any ideas?
 

wtxmale

Seaman Apprentice
Joined
Apr 11, 2009
Messages
32
Re: Please help

After 3 years and several thousand dollars replacing most parts I finally figured it out and its fixed! the gears in lower unit had chipped and worn bad,,,that was why going to neut. or rev. would correct it most times,,,had a new 2010 lower unit installed (has duel water pick ups one in cone) runs great again...picked up over 300 rpm wot,,,,
 
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