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  1. #1

    msx 150 MAX RPMS

    i HAVE A MSX 150 That I recently replaced the boost control valve. Lately the RPMs will not exceed 7100.. Any ideas on what to check?

    Thanks
    John


  2. #2
    Moderator beerdart's Avatar
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  3. #3
    Everything now seems ok. I replaced plugs with NGK equivalent and was hitting 7250 RPMs on a humid day. Just came back from running on a less humid day and reached 7350 on a regular basis. Who knew the humidity would make the difference...

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