[mini rider 140]

ok well i run stock mod and ive herd you could port your stock carb the get a pit more air going true can anyone tell how or were to port the carb at? im realy confused pics would help to

 

[chrisc161076]

I did a basic bore on mine, think l went to 12mm or 12.5mm (sorry thought l was in the crf50 section, same idea though) starts getting thin then, mine was just a circular l think if you want more oval you would get a larger area.



If you look through the carb from where the air goes in, to where it attaches to the manifold you see the venturi, that is the area you increase the size of.

 

[mini rider 140]

ok thx for the help do u have any pics tho? im till kinda confused

 

[chrisc161076]

No pics at the moment sorry, but if you look at your carb where the slide moves up and down, that is the area you are looking to increase the size of.

 

[drz63]

you have to have it machined

 

[mini rider 140]

gay

 

[drz63]

yeah, the stock carb sucks anyway

 

[mini rider 140]

ya but stock/mod

 

[chrisc161076]

I reamed mine.

 

[Paxracing]

WE key hole bore ours.

 

[mini rider 140]

wat is a key hole bore?

 

[Paxracing]

Only bore the top half of the carb out.

 

[mini rider 140]

why do you do that when you could do the hole thing? like whats the diffrence

 

[Paxracing]

Boring it bigger you will lose low end, Boring just the top you will get more top end.

 

[mini rider 140]

ooo ok