Ivan jetting kit

[SilverBullet]

Anyone have any experience or running an ivans jet kit? In particular for an r1?
Mine started playing up when riding, hunting at idle and missing down low. Pulled carbs and cleaned out everything, now it's sorta better, idle hunts a little less, little bit of sputter down low, good 1/4 throttle and spluttering like crazy up top.
I've tried the mixture screws, which 1 & 4 are seized so I'll have to fix them, but also herd about the jet holes ovaling out. Being an American kit I was wondering if the basic kit that Ivan does works over here too...

Cheers guys
Aaron

[davo]

99 model R1? 1+4 mixture screws are factory seized I believe.Emulsion tubes/needle jets ovaling are a common problem on most a/m jet kits. There was a guru here a few years back that used to silver solder and re-drill them. I wont go into detail as I have to get to the bottlo before it shuts.