Misfire

[Yamaha9.9]

I have a Yamaha 2002 9.9 2-stroke outboard just purchased.
Motor misfires at low and high RPM(spark plugs were replaced)
Now I need to test ignition coils, do you know the spec of resistance for this model 9.9MSHA ?
Thank you in advance.

[Yamaha9.9]

Does anyone has a solution or suggestion ?

[99yam40]

Yamaha service manual for your motor will all specs and procedures for testing everything.
I do not have a 9.9 so I do not have a service manual for it