Need help with my CR125 2006 ...

Guys, how much few dents and a little line (very small oil coming out from the line) in the pipe can affect power (low/middle/high torque) and carburation setup?

Can be this the reasons why my spark plug is always wet and dark?


Dents and cracks in your expansion chamber can affect power, but the reason for the excess oil and wet plug is because your jetting is too rich

Also dirty air filter, wrong heat range plug, improper mix ratio.

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