Well I finally took the Kymco 500 to a dealer and it turns out that the cams in it were almost flat and fuel was going into the oil, so they are installing new valves, cam shafts and new piston rings. oil change. Parts are 450.00 and labor 500.00. But I am still ahead on the deal I will have 1200.00 in it all said and done.
Just wanted to give some info for maybe someone else to help. They told me it needs 185 psi of compression to get it started.
Thanks for time gentlemen!
Ask for the old parts back. I'd like to see photos of them.
Gas in the oil can cause low compression by washing out oil in the piston rings. 185 psi compression is the spec but I'd think it could run on less. Compression is checked with the throttle wide open.
I had a 2016 with under 15K miles on it that had a major loss in power, I measured at 140 psi with the throttle closed and turns out with the throttle wide open it measured around 210 psi. The dealer tried several things and ended up putting a muffler on it claiming a broken baffle inside. I haven't had a chance to ride it and see if it's fixed because the owner doesn't have current registration on it.
Curious as to why this post isn't in the Xciting 500 sub forum?
