I am having problems with my Polaris Trailboss 325. It starts right up and idles, but when you throttle it, it only throttles up about 1/4 throttle even at full throttle. I cleaned the carb, and checked the fuel pump, which are both fine. When I put it in gear, it will go forward and reverse very slow due to the low throttle up, and it will significantly struggle to move up any grade in ground level. Any help would be greatly appreciated.

 

not any ideas. but we have a polaris 425 magnum with the same problem and havent figured it out yet. if you figure out what the problem is can you post us on what you did to solve it.

 

it's funny i as well have a magnum 425 4x4 doing the same thing i replaced the electronic rev limiter and it was good for aboit three days then back to the same situation please let me know if you guys figure it out and i will do the same, i had it at the dealer they said they fixed it and that it was a wiring issue they didn't though. but here is something else is it breaking free for you as well also is their issues with the ignition switch like turning the switch off and it stays running for a min or two.

 

tada lol i finally figured it out, go to your control box unhook all black wires and brown wires one at a time cleaning each nipple that it slides on to also take a pair of pliers and close the gap on the female part of the connection slightly to make them tighter, if that does not work check out your rev limiter it's primary function is reverse limiting but i have found with the grounding issue basically disconnecting my rev limiter the issue was the same as every one here!

 

maybe the connections are bad and corrorded. was the limited kicking in and making it spit and sputter?