Is it possible to rewind the coils pictured? My yamaha 50 is gone i than picked up a force 25hp 3 cylinder off my cousin thats been sitting for 10 years i checked it over and there is weak spark on no 1, no spark on 2 and 3 i put a multimeter on the two coil wires (not the spark plug wire) and it read 8xx in the 2000ohms setting