USMC0802
ArboristSite Guru
Concerning the fuel leak, try pulling the cap off the tank vent and check to see if the umberella seal is still in good shape, that might be where your leak is coming from. The E clip and washer that hold the ring drive on looks a little worn, a new set will fit a little tighter fit.
Pioneerguy600
The washer and e-clip are new in the top picture, as is the needle cage and rim sprocket. Only the clutch drum isn't new.
I'll check out the tank vent and look at the manual to get a better idea of what I'm looking for.