Maintenance & Technical > KX500 Aluminum Frame Conversion (AFC)
2017 KX250F - 2004 KX250
kxpegger:
Nice!
umberto:
--- Quote from: kxpegger on March 15, 2019, 06:19:50 AM ---Nice!
--- End quote ---
Thank you sir. It's a big change, but I'm starting to really like it.
umberto:
I’m at my parents’ house this weekend for Easter, and I brought a couple of bikes to ride. There is a section on their pasture that is really rough, and I’ve always used it to judge how well suspension works on my bike. This was my first time to ride this bike there, and it was amazing. They have had tons of rain, and most of the pasture was a rice paddy. It didn’t faze the bike at all, and it just handled and rode like a dream. I just need some clear spots on my schedule and some clear weather, and I’ll be riding this dude more. I love it.
One interesting bit on modern ergonomics: they make older bikes feel really weird. I was breaking in my Frankenbike 2004 project, and switching between it and this bike was like switching between a chopper and a sport bike. You sit in the older bike, you sit on the newer bikes. It’s so much easier to move around and the bikes are a lot narrower.
umberto:
Sometimes the littlest things can cause issues that just drive you nuts. This bike has fouled two plugs lately, and it was never a plug fouler before. It’s carbureted really well, and normally runs great. When I was building it, I replaced the coil because I thought I had an issue with the lead. The one I bought off eBay had a weird cap on it, but the bike fired right up so I didn’t think about it. When I was changing the last plug, I decided to look at it to see if there was anything loose or weird about it. Not sure why anyone thought this was a good idea, but it has a hole in the top of the cap. The bike always fouled the plug after I washed it, which made sense with the hole. Needless to say, that cap went in the trash and a new NGK cap went on.
umberto:
I was riding this bike on the 4th of July, when it just ground to a halt and wouldn't start. I've been having issues with spark, so I assumed that was going on. I replaced a faulty coil, and it still wouldn't run. I got some good advice to check the reeds, and I think I may have found at least part of the problem:
I don't think I've ever had a set of reeds explode like that. I was afraid a bolt came out and destroyed the piston as well, but the top end checked out okay.
I was able to score a VForce 3 for pretty cheap on eBay, although the shipping was ridiculously slow (don't buy from Parts Giant, they ship via a DHL/USPS combo and you could send a sloth to get it quicker).
The bike started, but it's backfiring which makes me think that I still have electrical problems. I have a complete spare ignition, so I'm going to swap it all over and see it that helps. I'll keep you posted on my progress.
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