Would this work on a blaster (HYDRAULIC CLUTCH LEVER MASTER CYLINDER)

Think about it. Is the clutch in a mini bike as strong as one in blaster? No. Please if you are interested in a hydro clutch, save your money and get the best, Magura. We were the first to help them develop these for the blaster, and they work great if set up correctly.
 
Also, you could check Ebay for an MSR easy pull perch. Got mine for 60 bucks and it's so easy to pull and smooth that I couldn't imagine a hydro being much better.