EXUP Worldwide

Well, thanks to the help from everyone here on the board and the invaluable archives, I think I have gotten the bugs worked out of my 750. The hesitation is almost completely gone, the top end pull is back and it idles wonderfully. That said, I feel like Im only about 95% of the way there. I think I...

Yeah, I guess that might sound a little far fetched and may not work in this case. Most of my piston engine experience is with RC helicopter engines which in those cases you CAN determine mixture problems by the sound of the engine, (i.e. popping, gurgling, or raspy type sounds) you just have to kno...

Thanks for the tip. I did sync them along with installing the needles from a dynojet kit and it has improved things a bit. I also opened the mixture screws a full turn and have just about gotten rid of the lag but now I dont have the top end power I should have. I think a needle position change migh...

Ok, I have a 97 YZF 750. Whats the best way to lean out the low end? Keep in mind, all of my checks have been done in neutral on a stand but it seems like from about 4-5K on up, the mixture seems good, but coming off of idle it seems real rich. Sitting at idle (about 1200 rpm) when you hit the throt...