by Rezzy » Thu Jul 07, 2016 10:15 am
Hey Guys, I have a 2003 CRF230f that I uncorked so far by changing the jets, removing the airbox snorkel and lining and removing the baffle. Now I am a complete newbie to uncorking and pretty much bikes in general but after doing plenty research and following directions carefully, I decided to give it a try. I removed the carb, cleaned it changed the jets, snd moved the needle down to 4th position. Now this is only like my 2nd time ever removing and opening a carb at all but everything seems to go pretty good. I then removed the lining and cover for the airbox and attempted to remove the baffle. The small screw that is supposed to allow the baffle to be removed is very stripped so until I can remove that I just took off the entire spark arrestor and baffle just for now to see if it will run, turn on etc. but I wont ride it like this.
Anyhow, I reinstalled the carb and the bike would turn on but not idle, just died right after letting throttle go. I adjusted the idle screw thinking I might have messed with it by mistake or something, and it worked, it was idling everything seemed good. Then I noticed the header pipe on the exhaust was hotter than usual because it smelled like soemthing was burning a little and I noticed some steam coming from it. Now i know these pipes are supposed to be very hot but this seemed way too hot I figured it had something to do with changing the jets but the pipe seems way too hot and the smell and steam doesnt seem right.I checked for any air leaks on the carb seals and refastened them but still the pipe gets insanely hot after a few seconds of being turned on. If anyone has any advice or can tell me how to deal with it please let me know. As I said I'm very much a newbie but feel like the carb cleaning and jet changing went well. I used a 120 Main and 45 pilot jet (I'm at sea level), I kept the needle because it's a 2003, and just moved it down to 4th position from 3rd. I did notice my fuel screw did not have an O-ring and washer so I got a replacement for that that I will put in today. Also I checked the spark plug after rejetting and turning it on a few times and there was a lot of carbon build up , last time i checked a couple weeks ago before uncorking it looked fine. Well somebody please let me know if you have any suggestions I would appreciate it, Thanks!