2010 OptiMax noisy injectors after not running for a long time

[vroom ZOOM]

Hi there,

Just got to firing up my 2010 optimax 115. It runs good except that it keeps missing. seems really similar to what this guys engine is doing: https://www.youtube.com/watch?v=ZgvM3k0-n2khttps://www.youtube.com/watch?v=ZgvM3k0-n2k. The injectors seem pretty noisy (really audible clicking). Anyways I put a bit of seafoam in it and then someone told me that it would wreck the motor??? why would it if I have 5 gallons of no ethanol gas and then I add 2 ounces of alchohol in it and turn it into E0.0002 gas? ugh! anyways I think the injectors might be plugged and I should just run it through it till it clears up?

Any advice appreciated

 

[vroom ZOOM]

ok, so i did a drop test, and each cylinder makes the engine slow down. Now what? Are there any opti gurus here that would suggest me what to do?

 

[vroom ZOOM]

now I have found something. Are the plugs supposed to be like this, with the soot band on the white part, or not? Would this cause a misfire?