My Opti proxs 250 has a bout 200 hours on it . It seems as though it doesn't want to go past 47 -48 mph . (4,800 rpm's ). Just replaced the fuel filter a week ago and it seemed to fix it for a few days now it did it to me again . Any thoughts on the problem?
check for spark when problem occurs on all 6, also check out 3.0L section lots more info there on your engine JOE
.................................................. ...the scariest thing in life is the unknown ...................................
I bet you dropped a coil. I had that happen on my 175pro xs and lost 10 mph
Don Blume
2018 Ranger Z520C
2018 Mercury 250 Pro XS 2B525775 2-Stroke
Past Rigs
2008 Triton Tr186 with Mercury 175 Pro XS
2000 Ranger R73 with Mercury 125
1976 Basscat with 150 Mercury
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