Mercury Optimax 225 DFI, year 2000

by Steve
(California, US)

My outboard is a 2000 Optimax 225 DFI. It has this weird issue of losing power then regaining itself. It runs well for awhile, then it drops power. After it drops power, it regains the power again and runs fine for awhile. Sometimes, it can't regain the power by itself, so I back out the throttle and I push it up again. Then it runs fine. There's no hesitation to regain power. Yesterday, during the trip of 70 miles, it happened for about 15 times. Do you think it's the TPI sensor and linkage? Where should I look for?


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