Ok, I really need some help, this thing is testing every bit of my patience. I have a local Kymco dealer here, so I went and bought a factory, unrestricted, CDI from them, and installed it today. The good news, is that it definitely revs higher than it did, but the issue that remains is that it is sooooo sluggish. It responds better, and I actually got it up to 30 mph today, but it took forever, and just feels totally restricted. I started the jetting at a 90 main jet, and swapped to a 92, it got better, then jumped back to 100, and at wide open throttle it really started bucking and stuttering. Went back to a 94, and that is where it has run the best.
The plug is a rusty gray color, so seems fine. I was feeling ok, like I was making some progress, then I hopped on my wifes 2005 stock 49cc bike with an unrestricted CDI... holly crap!!! It runs circles around my 2001 with a BBK and larger carb. Something is holding the bike back, and I have no idea what it could be. If I put both bikes on the center stand, the 2005 revs straight to red line and sounds great. If I rev the 2001 it revs to about 3000 and then just stutters to maybe 4000 rpm and then tops out.
I pulled both transmission covers off both bikes, and all of the drivetrain parts are stock on both, other than the derestricted sleeves.... so both are identical. Belts look good, rollers are new on the 2001 and are 7gram.
The only thing that I can see that looks different, is that the exhaust tip on the 2005 is totally dry, whereas the the tip on the 2001 is always wet, it has always about a drip of oil/fuel at the tip and drips towards the front about half way up the silencer. Its a small amount, but I am always wiping the bottom off of the silencer.
I heard that the early People 50 exhaust were unrestricted or at least less restrictive than the later bikes, but I am wondering if the liquid coming out might be a crapload that has been accumulating over time from however long its been running poorly. Just wonder if now its coming out... so is it possible that the exhaust is totally restricted/plugged, and not allowing the engine to spin up?
Or... is it possible that the reeds are too week, and allowing fuel and mix into the exhaust?
I have spent so much time and money on this bike, and I am totally stumped as to where to go.
I thought about a coil, but it starts immediately, I don't mind buying a replacement one but I'm not sure its likely to fix it. I thought about a stator, but the techs at the Kymco shop said that the only times they have seen stator issues were related to battery charging or lighting issues, but never spark issues (unless something contacted the pickup).
Other than those things, or the possibility of the exhaust being plugged, I am out of suggestions.
HELP PLEASE!!!!
