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Txs Bill.
In MA, most gas stations switched over in May of this year. It would have been nice if Yamaha posted this information back then vs waiting for the end of the boating season.
Related, I just got my boat back from the shop. Diagnosis - clogged fuel injectors. Until this year, the only solution was to replace these (4 in my 150) at a pretty hefty price. This year they started cleaning them at $50 per. Even though my boat is back and is running great, it took multiple phone calls to Yamaha by the marine shop and myself to ensure this was covered under warranty. My engine was only 1 year old with 6-7 months of use on it.
Problems to watch out for;
1. after a couple of minutes idling the engine would surge a few times then die - clogged injectors were limiting gas intake.
2. unfortunately this happened 2 weeks ago out at Stellwagon SWC, when I gave the engine throttle, the boat would pick up on plane and w/i 2 seconds throttle itself back down. WOT for my boat is usually ~35 knots, this particular day it ranged from 7 - 19 w/o adjusting throttle, a very unsettling feeling - the engine's computer system was trying to compensate for the clogged injectors and was getting all screwed up, it is also believe that some of the debris was floating therefore affecting multiple injectors at different times.
Happy ending since Yamaha covered cleaning and I used the boat friday, sat and sun for a combined 30 hrs and she ran like a champ!
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