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  1. J

    Yamaha 25hp 2000

    Just viewed a boat I'm thinking of buying which has a 25hp Yamaha outboard. Year 2000 with electric start. Thats all I know of the engine.<br /><br />The owner tells me it charges 2 batteries a starter battery and a leisure one. He claims it outputs around 16amps at normal cruising speed on the...
  2. J

    Yamaha 9.9 Four stroke outboard

    Just found out my Yamaha 9.9 Four-stroke takes NGK CR6HS spark plugs.<br /><br />Can anyone tell me what the plug gap should be set at please?
  3. J

    How much OIL do I need to purchase.

    Hi got a Yamaha 9.9 four stroke 1985 and would like to change the oil. <br /><br />I dont have a manual to it. Can anyone tell me how much oil I need to buy (believe it's 10W-30)and what are the correct sparkplugs and plug gaps for this engine?<br /><br />Thanks
  4. J

    Ballast

    I'm sure many of you will have started with this problem at some time. I'v just bought my first boat a 20foot fibreglass cruiser to cruise the canal systems in the UK.<br /><br />Due to its lack of weight even the slightest breeze blows it all over the place and it's hard to control when the...
  5. J

    12v lights

    Anyone know where I can purchase 12v bulb holders from?<br />Got a project I would like to try using 12v 21w car bulbs but can't find anywhere that sells bulb holders to fit them. The bulbs are the type used for indicator bulbs on british cars.
  6. J

    Ampmeter

    I've just installed a rectifier on my outboard engine and it has a dial that shows it is charging the battery ok.<br /><br />There is also an Ampmeter on the boat that is not connected. Should this just have a positive lead from the battery connected to it and what exactly is its purpose.
  7. J

    What size fuses

    Just bought first boat. Can someone tell me in simple English the answer to the following regarding lighting circuits:<br />If I have 1 20w bulb on a circuit what size fuse do I need to protect it?<br /><br />If I put 3 20w bulbs on the same circuit does the size of the fuse need to be...
  8. J

    How do I tell age and model of my Yamaha engine

    I have just purchased my first boat. It has a Yamaha 9.9 four stroke outboard engine, but I do not have a manual for it.<br />The identification plate has the following codes and numbers which mean nothing to me: F9.9 BM, 6G9, S, 002654<br /><br />How do I tell the age and model to enable me to...
  9. J

    Yamaha Outboard engine battery charging

    I have a Yamaha 9.9 Four stroke outboard. It has an electrical output socket on it for charging the battery.<br />I wanted to know if I could just plug a lead in it and keep the battery charged, but I have received conflicting advice. Some folk say I can some say I can’t because my engine...
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