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    Repropping 2010 Yamaha EFI F40

    Recommended RPM= 5500-6000 Boat is Carolina Skiff J16 My question is this....why the lack of 'normal' performance gain with the 12-pitch prop below??? All testing was done with boat loaded the same way, close to the same water/wind conditions, with props from the same manufacturer. This engine...
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    Suzuki DF140 no start after running out of fuel

    "Suzuki DF140, EFI,4-stroke. W "Suzuki DF140, EFI,4-stroke. Was running fine till ran out of gas. After adding gas to tank, fuel line would not pump back up. There is an in-line 10-micron filter near the engine with the clear site bowl. Bulb was good, line was unobstructed and not kinked, hose...
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    Reprop on b08 Yamaha F40

    "My '08 Yammy 40hp 4-strok "My '08 Yammy 40hp 4-stroke at WOT runs 5400 rpm. In an effort to get closer to the recommended WOT RPM of 5500-6000, I had the dealer tweak it from 4800 to 5400 and that is the best they could get out of it. I am considering repropping from a 10 1/4x14 to a 10...
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    Free 1996 DT40TC owners manual

    "I have the manual but sold th "I have the manual but sold the boat last year. Free to first person that sends me their address. Send to [email protected] By the way, if you own this engine, you have one of the gutsiest critters on the water. Mine ran strong without a single problem for 12...
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    Alternator Question

    "Does anyone know how many pol "Does anyone know how many poles are in the alternator of a 2008 Yamaha F40 4-stroke engine, or alternately, the switch setting on the back of a Farina 7000rpm tach for this same engine. I thought I would ask here before popping the cap and looking. Thanks"
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    Yamaha Repair Manual

    I have a 2008 Yamaha F40 4-str I have a 2008 Yamaha F40 4-stroke that I plan on doing my own work on. Anyone know how often manuals are updated or where I can get one for this engine? All I can find end in 2006.
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    2008 Yamaha F40TLR 4stroke headache

    "Engine has 6 hours on it when "Engine has 6 hours on it when without warning it dropped from about 3/4 throttle to barely above idle speed, then completely cut off. Restarted after about 5 minutes but would not run above idle speed. Dealer cleaned carbs but now it idles rough and surges badly...
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