kureus said:
For those of us hacking up GR650s, do you mind giving your carb jetting changes? Mine runs like crap without the airbox, and the exhaust won't be stock much longer. Thanks.
This bike came with 42.5 idle jets and 132.5 mains. The engine on this bike didn't seem to be modified, so I'm assuming these where stock. Not having idle mixture screws on the carb wigs me out a little. The only thing I don't like about this engine so far is that weird idle port contraption.
I did not do any porting on the heads, but the new intake and exhaust should still open things up significantly. I initially went up to 45 idles, and 140 mains, but this was so rich I did not need to choke the bike at all on cold startups. I went down to 42.5 (stock) idle and 137.5 mains this morning, but I have not had the chance to test this setup yet.
Something noteworthy is that I live at 9000' elevation, so those of you that are closer to sea level will probably want one jet size larger than what I use.