As long as you're tuning the thing up, pull the cover and take a good
look at the key that holds the flywheel in position, If it looks the
least bit worn or crooked, replace it.
I had a lot of trouble starting my mower, which then ran like crap
once started, until someone in this group suggested the flywheel key.
SInce I replaced it last year it has started better than it ever has,
even when it was new. Never more than 2 easy pulls when cold, 1/2 a
pull when warm.
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