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HOW DO YOU LIKE IT ? THE ONE I BOUGHT HAS A 16/21 I'M THINKING WITH MY MODS THIS SHOULD BE CLOSE TO THE RIGHT PITCH ??

I Mainly Ride Freeride Freestyle Lakes And Rivers . What Are Your Opinions On This Pump And What Motor Mods And Impellar Combos Work For You ?? I Have A Yamaha Superjet With A Ported 767 Motor.. Lots Of Other Mods. Thanx For Your Help !! the pump is a 140 set back 12 vane

Hey I Was Gonna Buy A Magnum Pump And I Mainly Ride Freeride Freestyle Lakes And Rivers . What Are Your Opinions On This Pump And What Motor Mods And Impellar Combos Work For You ?? I Have A Yamaha Superjet With A Ported 760 Motor.. Lots Of Other Mods. Thanx For Your Help !!

an easy way to psi test is bolt a plate over your intake and exhaust and take a rubber valve stem from a car wheel and buff the rubber off stick that in a hose and hook the hose to your pulser pump up with a bike pump should hold 7-10 psi for over an hour

an easy way to psi test is bolt a plate over your intake and exhaust and take a rubber valve stem from a car wheel and buff the rubber off stick that in a hose and hook the hose to your pulser pump up with a bike pump should hold 7-10 psi for over an hour

my superjet would run on occasion and checked for airleaks and none. turned out my rear cylinder was scored pretty bad and allowed air past rings .check your compression ! the crazy part was mine was only off 7 pounds !! and the piston skirt was hashed !!