Maintenance & Technical > KX250 / KX125
1998 KX250 bogging in at high RPM
bigspeights:
I have set my float right agian and still same problem. I have also cheaked the bore and there is no scratchs or any marks, I have cheaked the power valves and they seem to be working fine but I have not cheaked them while the bike is running. I have cheaked the reeds and they seem fine. I have put a new plug in the bike (NGK BR8ES) had a quick ride and the plug was light gray. after that I raised the float. I have not been able to ride the bike yet but I know that this will not fix it. What is wrong with my bike. I cant work it out. I even sprayed CRC on all the electric leads and gave them a clean. What else could it be and could it still be the carb even though I have cleaned it out about 3 times and have changed the float about 15 times and tested each time with no luck. I still find that the bike runs bettter with the choke on after I have been riding for about 10 mins. I getting sick of riding a bike that goes like crap. when I am riding on an open bit of track or I just want to open it up the bike justs has no power and boggs down.
Jopiz:
I wouldnt do any adjustments to the float level once its paraller. Could your jetting be too rich or too lean?
Heres what PC recommends:
KX250
158 main
45 pilot
NOZG needle 3rd notch
Power jet 55
Air screw 1 1/2 turns out
bigspeights:
thanks for all your help. The problem was low compretion, the rings were gone.
thanks again guys and have a good one
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