by gammaxy » Tue Jan 26, 2016 11:01 pm
So, it's sticking when you are in the idle cut-off position? Does it stick even if you pull it to idle cut-off very gently?
The aeroinjector manual describes how you can remove the valve, flush it with mineral spirits, and lubricate the o-ring with fuel proof lubricant if it is leaking. The manual also mentions that under normal use the lubricant and o-ring never need replacement.
I'd probably remove the valve and see if there's any mechanical defect causing it to stick and personally wouldn't use WD-40 since they call out fuel proof lubricant.