no sparks on a new F15CMH

[boayan123]

thank you for your time, no way to start anymore a new ( 10 hours ...) Y 15hp 4S , no sparks on the plugs , engine is far away from a dealer (700 km) (north palawan), in such a case is it always the ignition coils ? anyway to test it ? to change it is very expensive (120 $) and am not even sure it is the problem , pls help thank you very much

[boayan123]

spark plugs are new

of course we tried with new spark plugs !

thank you for your help

[boats.net]

Test CDI output voltage going to coil with a peak reading voltmeter to see if getting 115 peak volts. Chech secondary coil resistance is 4.91K ohms and primary is 0.16-0.24 ohms on each ignition coil.

[BaileysBoat]

The safety lanyard is installed??

[boayan123]

ok thank you , will try to figure out how to do that .

[boayan123]

yes , thank you

[boayan123]

Test CDI output voltage going to coil with a peak reading voltmeter to see if getting 115 peak volts. Chech secondary coil resistance is 4.91K ohms and primary is 0.16-0.24 ohms on each ignition coil.

sorry am an ignorant and
sorry for my english I am french !

pls more of your time, according to the 1234 on the joined pic how do I proceed for the coil resistance measures ?
is it 0.16-0.24 ohms btw 1 and 2 and 4.91K ohms btw 1 or 2 (well the positive...) and 3 or 4 ?
am not on the spot now. will have it check after you answered thanks again
of course for the CDI output I am not equipped with a peak reading voltmeter or a DVA adapter, i think if I was, I wont ask all those questions ... !

[rodbolt17]

unplug the white wire at the CDI and retest for spark.

[boayan123]

sadly no change

unplug the white wire at the CDI and retest for spark.

thank you very much for your help
yes to remove the security wire is a good idea but sadly no change no sparks

[boats.net]

.16-.24 between orange and black wires
4.91 between spark plug wires with plug cap removed.
But need to check peak reading volts first.