cylinder and head issues

[Sumsloppymeet]

so yea im waiting on a new top end for my stage 2 zeda80 seems on my first start somehow on asswembly a huge piece of metal found its way into the combustion chamber and the heads bottom was scratched up my questions are one can i use some sand paper off high grit to sand the gouge out of the head and if the dings and scratchs on the inside of the walls are so bad their unuseable?

 

[Rusty_S85]

can you catch your fingernail on the scratch?

I ask cause I got a Fred head and I think he might have hit the chamber with his electric pencil by mistake when he was engraving 7.0cc on the under side. You can see it as its a different sheen than the rest of the chamber but you cant catch your finger nail on it so I am letting it ride.

 

[Sumsloppymeet]

not anymore i took some 2500 grit sandpaper and smoothed it out a bit didnt take much im gonna try to even it a bit around just to be safe hopefully it didnt change much should it? im having trouble with carb issues aswell stillgonna buy a new one today/tomorrow just not sure what one i can use really and could use a good throttle suggest ive gotten 3 different ones and hated em all so far

 

[Rusty_S85]

With 2500 grit all you did was polish it out didn't really remove enough material to worry about.

 

[Sumsloppymeet]

ok cool i noticed i was just making it into more of a mirror like sheen on it as i did kinda see myself in it lol i still need to find a suitable carb upgrade and throttle any suggestions?

 

[Rusty_S85]

I couldn't say. Still working on my first build. I have been recommended over and over again the Mikuni 18mm carb is a good sized carb and has more adjustability than the kit supplied ones.