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    Fins

    13ft open plan type dory with cathedral hull. Very heavy bat for the size, unsinkable. Got an old 2 stroke 30hp yammy from early 90's. It has those fins on the cavitation plate which are supposed to help. The boat just about gets on the plane with 2 people in. Should I take them off? I want...
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    Mariner 60hp no spark

    I have a rib with 2 mariner 60hp outboards. One does not spark. I am not sure which year they are, they are look like this one though, slightly different. http://i1.ebayimg.com/02/i/001/56/35/8ec2_1.JPG?set_id=8800005007 Now, it does not spark on any cylinder (3) so I am guessing it is...
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    Mixture screw

    I bought a colortune device to adjust mixture to being perfect. But, how do you adjust the mixture on a mercury 40hp blueband twin cylinder. serial no. is 9251545 I have looked myself and looked on mercruiserparts.com but cannot find a mixture screw.
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    Colortune

    I have come across this tool called colortune and looked at a couple of threads from a few years ago but was wondering if anyone had used one. It is a see through spark plug which allows you to see the colour of the flame when the engine is running so you can set the mixture. Do they work...
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    perfect height of outboard for a boat.

    Does anyone have a few pictures of a perfectly mounted outboard on a boat. Prefereably 30hp-60hp side on views and from the back. Just want to get an idea of the perfect height. Pictures only as it would make it easier for me to keep and show people etc. Thanks
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    wiring boating items

    I am wiring a few things into my boat and want some advice. I have a bilge pump, 12v 3ah air horn 12v 4ah fuse holder and fuse of 5ah Battery 12v 4ah toggle switches. How do you think I should wire this up? I want to be able to put lights on in the future.
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    2 stroke mix

    does anyone know the 2 stroke mix for a 40hp twin cyl mercury blueband??
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    mercury 40hp

    What is the fuel mixture for a mercury 40hp twin cylinder blueband? Thanks
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    Trailer bends

    Hello, I have a 14ft Speedboat with a 40hp mercury blueband. The trailer is homemade by previus owner and the boat fits fine, just the main frame bends. The piece of metal joining the hubs together flexes when the boat is on it and the wheels are slightly pointed inwards at the top. Is this...
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    Name my boat!

    Ok, 14ft all white speedboat. v hull with a 40hp blueband pushing it along pretty quick. Ive got a list of possible names. Got to be funny, relate to the boat but not too rude. Heres what i've got so far. shut up and bail reel crazy jamaican me crazy aquaholic sotally tober filthy oar for...
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    how fast will this go??

    13ft speedboat, v hull. 2 seats, very lightweight. got a merc 40hp with a 16p prop on. When in water it would just fly up and be in efficient so we put 50lb of ballast at the front to hold it down! How fast will this go in your experienced opinions. Thanks
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    classic merc major problem!

    ok this is not major major but fairly major. mercury 40 from 1980/81 I believe blueband. I was sitting in my boat with muffs on idleing and I tapped the throttle, all ok. Turned engine off and was pretending to be going 60mph (speedboat) and put throttle all the way forward and I hard a clunk...
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    merc 40 plugs

    I have a mercury blueband 40hp outboard. Twin cylinder, serial no. 9251545 What is the difference between BUHW and BUHW-2 Ive looked at an NGK symbol chart to try and work out but can't find out. Also, if I remove the carb to clean, will I need to re-sync the timing when I put it back in. All...
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    Mercury 40hp blueband

    I have a mercury blueband 40hp outboard. Twin cylinder, serial no. 9251545 which I found on a plate on the transom bracket. Can someone tell me these things: Year What the cable does that goes from the powerhead down to the gearbox. BUHW or BUHW-2 spark plug If the rubber water cooling tubes...
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    yamaha 30hp gear change cable holder snapped.

    I have a yamaha 30hp 2 stroke. from early 90's I believe. twin cylinder model. I come to my boat and the cables have seized. With a little wiggling the throttle one frees up. The gear change one does not and as I push harder, the little bracket that holds the outer casing of the gear change...
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    merc 500 fuel pump problem

    Hello merc geniuses :D I have a merc 500, 50hp 4cyl 2 stroke. serial no. is 2948379 Right, i got new carbs for it and put fuel in float bowls manually via syringe as fuel pump not working. It would not start. Not even fire once. Plugs have nice big blue spark on each one. Loads of compression...
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    butterfly valve seized and jets gunked

    Hello, I have a 50hp blueband merc, 2 stroke 4cyl from 1979 I think. Problem is this, butterfly valve is seized on both carbs. I have tried wd-40 every 30 minutes for a day, no luck. I have heard people put in diesel but wouldn't this take ages! Is heat then wd-40 while its hot and it will...
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    50hp blueband, impeller, stop switch and gearing

    Hello everyone, last thread was unrelated so here we go. I have a 50hp blueband mercury 1979, 2 stroke, serial no. is 2948379 I have a couple of quetions if anyone could help me. I lost the impeller key, I must have done or it was removed by someone else. I didn't ever see it, even when...
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    blueband 50hp, seized??

    Hello everyone. I have just come into ownership of a 4cyl, mecury blueband 50hp with thunderbolt ignition. I have heard these are "bullet proof" motors but I have a problem. Prop wont turn, cord won't pull. I have tried different gears but nothing happens. Prop is solid. As it won't turn in...
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    14ft Shakespeare fibreglass painting question

    Hello everyone. As some of you may know, I will be building a hydroplane for this summer but to help fund, I thought I would make some money to pay for everything that I will need because I want to do it properly. I would just like to thank everyone that posted especially "oops" for their...
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