Maintenance & Technical > KX500 Original
Just bought a mint 2003 K5 today, not as much power as expected?? have pics :)
Polar-Bus:
after we set the jetting, and inspect the top end and it proves to be good, the only other remote possibility I can think of for sub par acceleration is a bad clutch... but that's stretching it.... we see. I will certainly post pics and details when/if we find the suspect...
Rich
95formula847:
hopefully its something simple. Im having problems with my 91 also.
JustinSB:
Another kind of random thing that can cause problems is excess carbon build up in the expansion chamber.
95formula847:
I have put a new top end on, Cleaned and re-jetted carburetor to recommended jetting for my area, all new gaskets and a few seals, new power core silencer and pro circuit platinum pipe and it still doesn't run right. I ordered V-Force reeds and got a reed spacer from jfab so im hoping my problem is in the reeds as they don't have much "tension". I also did a test by filling the valve with water and holding it shut... then releasing and counting how long it takes to empty the water. Most say 6-10 seconds is good for stock reeds and mine take under 2 seconds!
Not stealing a thread just tossing out my situation if it helps the original poster.
93cbra:
Well Rich looked in the exhaust port and found the problem. The piston has a chunk missing from it. I'll try to tear it down today and take some pictures.
Thanks for your help Rich!
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