I just helped a friend buy a 2005 suzuki drz125L. It runs sluggish and slower than a cd70, What should I be tuning to get it to run good? Its engine architecture seems very similar to that of a Honda CG125
The fuel in the tank was a year old. I changed the fuel, ran some seafoam and the engine runs better and idles fine but it has no top end power and more bottom end power than mid range power.
I have riden some faster than stock CG125s in lahore which were running on stock parts only. Im wondering if anyone knows what people tune in order to get these engines running good. I will be changing the air filter, engine oil, spark plug, and oil filter. I dont know if the valves have ever been adjusted or even how to adjust them. I will try tuning the carburettor later. Should I be looking at anything else?
The engine starts on the first kick most of the time and sometimes the second kick. I do hear some metallic knocking while kicking sometimes (I hope its not the piston hitting the valves).
Thanks is advance
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