WR250F quick action throttle YZF? n deep float drain plug?

[Blue_SV650S]

My WR could do with a much quicker action (less rotation to full) throttle as it is a right pain (literally) trying to get full throttle.

Does anyone know if you can directly swap the WR tube for a standard throttle tube off another bike to make full throttle less of a twist? I was thinking the YZF250 might have a quicker action as stock?? Or perhaps another yam throttle tube (R6/R1??) might slot in and be quicker than than the stock WR???

Secondly, anyone recommend a make of deep drain plug/bolt for the carb float bowl - it has a right habit of getting water in there and making it run plops and the stock one is far too shallow to allow for any water build up!!
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