problems syncing carbs

[GZXR400]

Hi im having problems syncing my carbs

using a morgan carbtune

Connected evreything up, i couldnt get the tubing all the way over the restrictors as its just too tight so i have carefully taped them over so they are sealed

Fired the bike up and it tells me carbs are out of sync, so i get a screwdriver and before i even turn the screw with a screwdriver the revs fly up to 4-5k then go back to a really low idle

Iv got my idle set to 1500rpm, Valves are adjusted and have been checked, bikes been serviced new filters etc

Only thing i can think of is the baffle is removed from the exhaust and that i have no exhaust gaskets as the ones i bought didnt fit

really confused iv also took the carbs of and refitted them to make sure there secure

out of ideas could really do with some help thanks

[Blau Zedong]

You really need to get some quality kitchen scales - you'll never get them accurate by vaccum alone.

Remember when filing material off that the carbs must weigh within 0.5g of each other or you'll never get it to run smoothly.
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[P.addy]

[GZXR400]

i have redone them and managed to get 1 and 2 within 2cmhg and 3 and 4 but i need to bring them level but bikes reving up but im finding adjusting the idle down as it revs is helping

[Vincent]

[lihp]

I think you're pressing on the screw head a little which causes it to rev, make sure you blip the throttle a couple of times between adjustments