Honda engine, by the way, on a Troy-Bilt 21" push mower...about 1yr old. on the one pic at the bottom of the page showing the closeup of the "gold" colored piece (you can see on the right of it where i took off the air filter) , is that the carb or is the carb behind the shiny silver cover that has the OHV on it? on that same pic, the bowl looking piece at the bottom of it (it has a bolt on the left side of it and also another one on the bottom of it) is that the carb bowl that i can remove to check what the inside of it looks like? do i have to remove both of those bolts to remove that piece? on the other pic showing the spark plug, and the silver OHV cover, and that adjustment part to the right of the spark plug....is that something i can adjust at all...it's not the part connected to the cable that pulls when you push down the handle to start the mower, that one is on the other end of the engine. thanks for looking.