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    Parsun 15hp Timing issue/question

    I have a brand new Parsun 15hp two stroke outboard I purchased here in Venezuela. It was an inexpensive motor especially so because the local government subsidizes products from China. The engine is a copy of a discontinued Yamaha engine and can use Yamaha parts. The issue I'm having is the...
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    Need to make a drive shaft for a long tail outboard motor

    It's a 9hp diesel engine with a lot of torque for a 9hp. What should I make the drive shaft out of? I needs to be 1" or less in diameter. Thanks! Greg
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    Beating out the cup

    Dear group, thank you for your time and thanks in advance for your suggestions. I took a 9 hp diesel engine and turned it into an outboard by adding a long shaft and a propeller. When it came time for selecting a prop I wasn't exactly sure what I needed. I used a couple of online propeller...
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    Prop thrust question - needed for homemade engine design

    I'm making a long tail outboard motor using a diesel engine and I'm trying to determine roughly the thrust the prop will be generating. Any help would be greatly appreciated. The prop is a 7.75" diameter, 6" pitch prop (cupped). The engine is turns at 3600rpm max. The boat it will be pushing...
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    DT15 Ignition problem

    A friend's DT15 has an ignition problem, no spark period. If I put my volt meter on his induction coil (disconnected from the ignition system) I get around 15 VAC when the motor's pull starter is pulled. I've checked this with another DT15 and that seems right. When I check the voltage of the...
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