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2 stroke 90TLRB cutting back to 2500 rpms

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  • 2 stroke 90TLRB cutting back to 2500 rpms

    Just bought my grandfather's boat that I started using last year. The local marine was taking care of maintenance and I'm having a similar problem to last year. The first day I took it out this year we had a great time cruising around for probably 40 minutes (20 at a time), and experienced no rpm drop. The next day, within a few minutes it cut back from 4000 rpms to 2500rpms and wouldn't go any higher. I had the same problem last year and it was supposedly something they forgot to do when de-winterizing it. Something about plugs maybe?

    The only thing he told me to do was put in clean gas, which I did.

    Any help would be appreciated. It is difficult to get in touch with this guy on the weekend at the marine.
    Last edited by levistep; 09-18-2010, 11:24 AM.

  • #2
    Might try a new set of plugs, check fuel for water in fuel filter and replace fuel filter.
    Regards
    Boats.net
    Yamaha Outboard Parts

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