That's why I have a shed full of tools . . . many are duplicates . . .
I'm also adept at "googling" . . . and will first look at it and take a whack at fixing it.
Next comes "Where did I put that owner's manual ??" . . . and give it a go
Next comes the written thingamabobs on the internet . . . usually pages and pages of useless info until you find that little gem you needed.
Next to last comes the "Youtube Express" . . . 10 to 20 youtube accounts . . . each having the final and best answer to your question. Ya just gotta be careful there . . . some guys there have been known to shoot themselve in the foot . . . with their own gun . . . on camera . . . while doing a "This is the best way to do this" youtube adventure.
And of course last . . . search Google for a dealer . . . and check the list for the knuckleheads you've already visited . . . find a new one or an honest (?) one.
May God bless,
Dwight