Hello ! I have a question for you. I have the same engine like you and I have sometime problems with overflow carburator with fuel. I´m on ride 10 minutes on full throttle, I need to slow down, and after few seconds engine stops. Then did not want to start. Benzin flows around air intake. The spark plug is to wet. When I unmount the carburator, remove the plastic float and gas - intake needle, clean it and assembly that parts back, engine starts on first pull. But in carburator is not dirt, no visible problem.
Pozdrav. Jako dobar video, uuz napomenu crvolovke se izrađuju i danas dakle ima ih u dućanu, a neke izrađujemo i sami. Osim izrade "gnjezda" i fumara u kolovozu, crv radi i nevidljive rupe koje sakriva školjkama kamenčićima i raznim predmetima. Lov mora biti precizan i vrlo tih jer crv osječa svaku jaču vibraciju ili šum. Naraste i do 3m. :)
I lowered motor head for aprox. 1,5mm and compression rate is now higher. Before cca 1:5,5 after remake 1:6,6-7. No other modification is necessary. I tested with higher fuel flow by enlarging fuel duse, but it was nothing better since original is anyway too large, so it is now just perfect and fuel consumption is on same rpms even lower then before service. NT
@loviveros No upgrade. Only marinisation for salt water. It is quite complex, but results are very good. Motor on boat is performing perfect. It is quiet and very litle vibrasions comparing profesional marine diesel engines. Fuel consumption is very low. After 1500 workin hours it is 2,41 litres per hour @ cruising speed of 6,3kn. Boat is Gib Sea 114 (12m, cca 10t).
@chavier1 It was marinised for use on sailing boat and I tested two alternators for better and faster charging of 1200Ah batteries on boat. Now in final version only one alternator 250A is used.