drop the idle speed of the engine a bit
the predators are quite bad at idling and they run a tad too high (@1800rpms)
just at our usual clutch engagement speeds
(holds true for most off the shelf centrifugal clutches ans well as stock series 30 TCs)
so a well idling predator will ALWAYS engage the clutch ever so slightly already.
drop it until the engine is barely running
(that's where the cleaned carb comes in.. you need it to be perfectly clean in order to even allow a lower idle speed)
if you can drop below 1600 rpms you should be good, 1400 would be ideal
(1200 is what true hondas idle at ... hence the engagement speed of the clutches))
if you cannot drop the speed, you need the next stiffer clutch/TC garter springs [usually those are for 2400 full lock instead of 2200]
that buys you the 200 rpms for clutch engagement at 2k instead of 1.8k
'sid