Hello Gureno,
I know one tenth of nix on reel type mowers, but do know that my Victa 160 that had been sitting for months outside -but sheltered, wouldn't give me a peep until I rubbed the points down with some finer grade sandpaper and regapped them. Fires up again like before now.
There was a recent thread discussing how to test the coil and what readings you should get in ohms of resistance to indicate whether it's ok or not.
https://www.outdoorking-forum.com.au/forum/ubbthreads.php/topics/115318/re-victa-5-183-coils-badly-needed.html#Post115318
(You might need to copy and paste that link or scroll down the active threads page to find the topic.)
