OK - I m new to four wheelers, but have worked on "things" for years...how in the heck do you get to, and tighten the left side carburetor mounting bolt/screw???

It is 8mm or so it appears, but I cannot find a wrench that can access it.

At least the right hand side you can tighten with a screw driver from the front of the engine.

I thought I had it tightened, and it has worked loose again, causing a massive vacuum leak and poor performance.
My 13 year old son is going nuts because Dad cannot fix it.

ALL HELP IS APPRECIATED!!

 

Welcome to the forums.
I use a 8mm Snap-On wrench. It's thin enough to work.
I imagine that you can grind a craftsman down to fit.