3 Comments

  1. Thank you for this truly helpful information it was much needed for the build I’m in the process of building

  2. Hello, I put a Predator 420cc on a golf cart. It is asthmatic at best. However I am using the same pulse pump that came with the original Robins motor. Which pulse pump would do best for the Predator 420? Also I will likely be putting a genuine Mikuni 34mm carb on soon.

    Thank you so much for your time,

    Kip Gerringer

  3. TO WHOM IT MAY CONCERN/CAN ANYONE TELL ME IF THE PREDATOR 420 CC IS SUPPOSE TO HAVE DIFFERENT LENGTH VALVES/THE STOCK UNIT I HAVE IS A HARBOUR FREIGHT /GENERATOR ENGINE/ I RECENTLY HAD A DROPPED VALVE SITUATION/I MADE THE MISTAKE OF SENDING IT OUT TO A SMALL ENGINE MECH/ WHEN IT CAME BACK I HAD A VALVE THAT APPEARED TO BE LONGER WITH VERY LITTLE VALVE SPRING TENSION BECAUSE OF THE LENGTH/ IF I WOULD HAVE RUN ENGINE/ IT WOULD HAVE DROPPED A VALVE AGAIN AND PROBABLY PUNCH OUT A PISTON

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