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  1. jurgenscraft

    Replacing 225hp VRO fuel pump with Yamaha pump

    Can a Yamaha pump be used in place of the standard Evenrude VRO pump, I have the facilities to manufacture all the brackets and vacum adaptror plates. If the pump has the correct flow requirements I cannot imagine what could go wrong , I premix my fuel at 50:1 and pump that directly through the...
  2. jurgenscraft

    Evenrude 225 tank testing questions

    Hello all, Why when testing a motor in a test tank with the gearbox in neutral ,the motor runs rough when cold and then improves as it warms up,but does not run as well as it would when under load eg: pushing the boat through the water at 3500/4500rpm. regards: William
  3. jurgenscraft

    what prop for low speed trawling.

    I have a 21 foot cabin boat powered by a 225hp Evenrude motor which has a omc 14 1/4 x 21 pitch prop, this combination runs very well, planes well and runs true to the manufacturers rpm range,but, when I have reached the fishing area I reduce throttle and trawl at 2000 to 2500 rpm at this rpm I...
  4. jurgenscraft

    Running motor at low rpm

    Good morning all. My 21 foot cabin boat is fitted with a 225 HP vro Evenrude. the propellor combination is correct and all is well . I will be doing a lot of low rpm trawling as well as mid rpm cruising, Trawling at 2000 rpm and cruising at 3000 / 3500 max rpm. Should I use hotter running plugs...
  5. jurgenscraft

    what can this prob be.

    I have been given a "Evenrude propellor" that has these numbers cast into the centre of the hub 48-79572-17 but I do not see any makings that tie it up to Evenrude.The propellor fitted to my 225 Rude is a 14 1/4 x 21 pitch, the propellor given to me is bigger in dia. and just fits under the...
  6. jurgenscraft

    225 Evenrude vr0 start up smoke and fuel consumption.

    Good evening all.even though our 225 vro motor is in good condition (recently serviced and tuned ) but it smokes quite a lot when started in a test tank, the vro has been disconected and we run a straight 50:1 If fuel is kept for a few weeks, will the petrol evaporate off making the remaining...
  7. jurgenscraft

    Flushing motor with antifreeze?

    I was thinking of flushing my motor with a automotive antifreeze to protect it after normal flushing to stop corrosion during long storage periods or would saltaway do the same thing, what do you guys think. Kind Regards.William Wright
  8. jurgenscraft

    starting point for a cabin boat fitted with 225 Evenrude vro.

    Good morning all. I have a South african built cabin boat Excalibre 210)fitted with a Evenrude 225 vro, the boat is a deep vee hull and has the following dimensions, Length 6.4 m. Beam 2.8 m. Mass 650 Kg. Draft.0.4m. If I include the mass of the motor(256Kg) the total mass would be 906 Kg...
  9. jurgenscraft

    removal of thermostat?? is there any good reason?

    My 225 RO evenrude runs well as is ( with thermostat fitted) but here in South Africa we get pretty high temperatures during the summer especially from November through to February, when day time temperatures are in the 30 to 40 degree c range from 11:00 to 14:oo some guys recomend the removal...
  10. jurgenscraft

    checking the cooling system.

    Recently I saw quite a few posts regardig overheating,Well today I decided to start up the Evenrude 225 VRO.fortunately I made myself a running tank out of a 200 litre drum,Now my motor had not been run for a while because we are now at mid winter. I filled the running tank with water and...
  11. jurgenscraft

    fitting a seperate electric temperature gauge

    Good evening all> I would like to fit a electic temperature gauge to a Evenrude 225 Hp. VRO motor ( something like a VDO instruments unit)I would be needing a sender unit as well as the temperatur gauge, how would I go about fitting the sender unit to the cylinder head,any suggestions. Kind...
  12. jurgenscraft

    Marine varnish V UV resistant Varnish ?

    what is the difference between marine varnish and UV resistant varnish, the salesman at the paint counter says that they are basically the same except that the UV resistant varnish made here in South Africa is formulated to resist high UV levels experienced in the high altitude regions...
  13. jurgenscraft

    fitting sail to power cabin boat.

    Has anybody fitted a small sail to a power boat,if so how was this done,I will have to make a propper and slightly oversized rudder and mount this on brackets to the out board motor and I think if I keep the sail size small ,I don't think the keeel will become a issue, all I want to do is idle...
  14. jurgenscraft

    Effectiveness of Quicksilver powertune and fuel system cleaners or simillar products

    Good evening all . I have heard and read about these "Mechanic in a spray can" products and wonder how effective they realy are, can a motor be de-carbonized by simply spraying a solution of various chemicals through the intake tubes of the carburettors, do these products work. One of the brand...
  15. jurgenscraft

    vro warning buzzer

    Good evening all. I have removed the vro unit on a 225 HP evenrude motor and premix at 50:1 the problem that now exists is that after about 5minutes of running We get the no oil signal, one beep every few seconds, how can we bypass this, which wires do we have to disconect. Depending on the cost...
  16. jurgenscraft

    what oil and how much for evenrude 225 vro.

    Hello all, what type of gear oil must we use in our Evenrude 225 vro 1998 model. WHAT IS THE CORRECT FILLING PROCEDURE AND HOW MUCH OIL IS NEEDED, what is the difference between normal 80w90 and what is used in outboard motors I have even heard of people using automatic transmission oil in the...
  17. jurgenscraft

    starting procedure for Evenrude 225 VRO

    Good evening all, can any body assist us with the correct starting procedure for a 1989 225 VRO Evenrude motor, we battle to get the motor started from cold or from a long standing period 2 months or so, once it has started and warmed up there is no problem to start it during the day. We pump...
  18. jurgenscraft

    Lowrance X25 sonar / fish finder cone angles

    Hello all, I think I deleted my previous post regarding thhe Lowrance sonar unit.I acquired the Lowrance X25 sonar unit complete and in good working order, What I would like to know what transducer is fitted to my boat, could it be the 8 degree salt water unit or the 20 degree fresh water unit,I...
  19. jurgenscraft

    Lowrance X25 sonar / fish finder cone angles

    I recently acquired this old, in excellent condition sonar unit,I was also able to down load a handbook off the web .I would like to know which transducer I have fitted to the unit what is the cone angle of the particular transducer I cant seem to find a part number on the transducer, is there...
  20. jurgenscraft

    Lowrance x25 sonar fish finder questions

    I know that the Lowrance X25 is a very old model sonar / fish finder, and it is about time I bought a new unit, but, I like the unit and it works well, the questions I have are firstly, can the cable from the sender to the screen unit be cut and rejoined, how can this be done succesfully...
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