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    yamaha 20hp exhaust ?

    a m8t wants to buy a 20hp the model no: 20cm 6e9 s 01194 on the transom , now he says the exhaust coming out through the prop , & i told him they never made a 20hp with that serial no in the year 1994 , i have an impression something has been swopped , the ? what year did they change the exhaust...
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    Durban tests heat sensor

    many of us overlook this very important liitle sensor , we take cylinderheads off & repair everything else but this little thing : gets overlooled : uploaded is a photo of where ists located , & upon removeing note the rust on the surfaces , i put my soldering iron on it without cleaning it , &...
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    Durbans power pack modification

    I stripped a power pack to find out why it was not working , gonna replace one of the possiable resistors or 630v nichon capasitor then biuld my own with a safety fuse in it , should something go wrong cheaper for me to replace a 1dlr fuse than a 300 dlr power pack .
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    Durbans wireing harness & distubution overhaul 70hp

    the first thing i looked for was hair line cracks on the coils , you will find them on the back between block & back of coil spark jumps out through these cracks easy to see at night in the dark , fix them with epoxy solved the problem for me , secondly the rectifier the middle wire the red one...
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    Durbans Johnsonator outboard motors .

    Designed Fresh water Cooling system in New Zealand .Decals to follow on cowling , soon
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    Durbans heat resistant weld

    Epoxy 641 mixed with biulding cement powder .
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    durbans heat resistant epoxy formula

    today i made my own heat resistant epoxy put a lighter to it & does not set alight , i experimented 1st of all with Westsystems Epoxy & mixed it with 411 Microsphere Blend Light wieght filling aditive , left to go rock hard , put a ciggarret lighter to it & it caught alight imediately . then i...
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    Durbans new experiment .parrafin & accetone

    ive tried almost any thing i could get my hands on to mix with parrafin except benzine , witch is very diffecult to get and not good for our enviroment thats why petrol companys have done away with it mixing it with petrol . i got my doctors syringe out & measured milliliters of parrafin off &...
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    correct spark plugs

    help needed for my m8ts 150 hp its from the 1973 some years round there the last 2 no,s in the serial no is 99 , any info would be appreciated , many thaks
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    Durban fixes starter motor bendix gear

    yesterday there was a guy with a bendix problem , this is how i fixed one i , i used my epoxy formula , cut the flange with slots in , line it up with the rubber & drill holes into rubber , take it out agian & put my epoxy formula in then put it back & fill the slots with the epoxy formula...
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    2003 50hp vro

    2 stroke a m8t wants me to remove the vro & make it premix as he needs the space in the boat , i have not seen his set up yet , the sensible thing to do , is put it out to the pro,s , has anyone done this on this model motor , info would be much appreciated , thanks
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    New zealand new inventer boat propulsion

    I found this in nz forums http://www.3news.co.nz/Southland-inventors-revolutionise-boat-propeller-system/tabid/421/articleID/268643/Default.aspx#ixzz26DEXR1Mz http://www.contrapel.com/index.html
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    spark plugs & starting

    i was just thinking i know that its recommended to use the correct plugs , but what if i put a hotter plug in & set the timing to 0- degrees tdc as apposed to 4 - 6 degrees on some motors with the recommended plug surely by doing this it will not have any pre detonation thus eliminating pre...
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    durbans idea SPARK PANEL

    I am gonna get three neon globes the ones with gas in connect a wire to each point after coils & to each globe connect earth in series to the 3 globes mount this on a panel to my console so while you are going keep your eye on the globes every time the plug fires the globe will light up if one...
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    Thermostat

    I was just thinking about this , when motor is cold & just idling poppet valves are closed . water heats up to thermostat temp it , opens & lets the hot water out more cold water comes in it closes because i assume the temperature changes because the impeller pumps more cold water in & a...
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    make your own spark tester

    drill & tap into the flat side of the hexagon nut attach a wire & cut the little piece of metal of on the end of the plug fit a crocodile clip on the other end , wear leather gloves when you use it .
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    what you may find in your back garden in south africa

    this Black Mamba was in my brothers garden , its about 45years old , 7meter long & has enough venom-en to kill 400 adults the most dangerous snake in Africa .
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    ltrs per minute

    Does anyone know how many ltrs per minute a 70hp impeller would pump say at idle rpm & at 5000 rpm , the way i see it the slower the rpm the less water per minute thks
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    durbans cooler exhaust box

    ive made the exhaust box on 1974 70hp bigger to keep it cooler cause there is only about 1.5 mm gap between end cover and manifold box the water in this area heats qiuck and to much heat on the manifold box with insufficient water around it to keep it cool & possiably stop the warpage too .
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    Durbans new boat

    i bought this for 100 dlr i plan to convert it to a sea boat , building a stand up console & will be looking at increasing the draft \displacement around the transom area as i would be fitting one of my 70hp or 60hp Johnson \Evinrudes on the transom , iam a bit concerned about water coming over...
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