Recent content by ibeiser

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    best rpm to run an engine

    The manual for my Suzuki 115HP outboard engine says the operating rpm is 5,000-6,000. My question: is there an "optimum" operating rpm for 1. efficiency? 2. engine longevity (less wear and tear)? Is the engine more likely to overheat or break down if operated constantly at the max rpm and is is...
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    should outboard engine tilt up when hitting a sandbar?

    I think I hit a sandbar which caused a spun prop hub. A friend who was on the boat with me said that the engine should have tilted up when hitting the sandbar. Is this true? If so, what might be responsible for not allowing the outboard engine to pop up on contact with the sandbar? (It is a...
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    outboard gears

    Do typical outboard engines have just 1 forward and 1 reverse gear? Or are they like cars where the transmission may have 4 or 5 forward gears? (eg. most likely arrangement in my outboard which is a 2007 Suzuki 115hp 4 stroke or other comparable engines.) Thanks and sorry if this question is...
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    Suzuki DF115- full RPM but won't go more than 15mph

    19' Kencraft with Suzuki 115 (2007 model year) with less than 50 hours. Was running fine until it suddenly stopped. After restarting, it will now go only about 15mph. RPM will increase to max >6000 but speed does not increase with increased RPM beyond 2000RPM. However, when trying to go in...
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