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Hi all, I'm after some more help & advice if anyone can help?? (and sorry for the long post but wanted to get as much info in as I could). I've got a standard MK1 97 1200 bandit, that I've done the 'Krazy Ed carb mod' on, 127.5 mains, 35 pilots, shimmed needles, pilots 3 turns out, float heights 14.5 & a 2" hole in the airbox. (It had a free flowing race can & K&N panel filter already on it). I've done a few of these in the past with good results, till now :-( On the first test ride it was running good everywhere with improved performance over stock, apart from a bad stuttering between 2k to 3k revs and you couldn't ride at 30mph without it stuttering (chugging along), but it was fine when you opened the throttle and gave it some, lifting the front wheel in first and second off the power no problem and reving/pulling all the way upto the red line. I tried everything, different settings on the carbs but couldn't get rid of the low down stutter (I changed float levels, pilot screw turns & even taped the 2" hole back up). I noticed a couple of the emulsion tubes looked slightly egg shaped (but only slightly) so I changed them anyway for new genuine Suzuki ones and it was a totally different ride. The stutter was more or less gone & you could actually now ride at 30mph when needed without the dreaded stutter, but now I have a new problem that I'm wondering if anyone can help with?? At standstill, in neutral if you rev the bike it now wont rev cleanly past 3k revs without coughing & spluttering upto about 5k revs and then its ok upto the red line, so 3k to 5k it coughs & splutters but everywhere else its fine inc on tick over. Also when riding it @ full throttle it seems a bit flat/hesitant between 2k to 3k but then takes off and is ok everywhere else. I've tried going less than 3 turns on the pilot screws to 2 1/2 turns but it then wont tick over properly, with the revs hunting up and down, from 500rpm to 1.5k rpm. (@ 3 turns the revs are steady @ 1k rpm). When you blip the throttle, the revs don't hang and they don't drop below the tick over either and it doesn't seem to get better or worse as it warms up, the carbs are also spotless inside. I've checked the plugs and they look OK (a bit rich if anything) and the outlet on the end can is slightly sooty but not really bad. So I'm thinking its running a bit rich if anything but it doesn't like me leaning the mixture and turning the pilot screw in, so that's threw me abit and now I'm lost :-( . Could it be float heights are wrong or would the needle heights affect this part of the running (thinking needles are more mid range)? Before I start stripping the carbs and changing things I'm after some of your knowledge and input to maybe point me in the right direction again .......... Thanks in advance :-)

I got the bike in December it was never running 100%, after clening the carbs i discovered the previous owned had put a DynoJet kit stage 3, going from 115 main jets to 165, huge jump, I've been trying to do a trial and error since the bike is running extremely rich and my spark plus get fouled really fast. I tried going down to 150 main jets, and 140, still running like shit. I want to go back to 2 over on the main jets, i want to know if Suzuki goes up 2.5 or 5 increments? stock is 115, should i go to 120, or 125?