yes ,i think they started in 94 and made them for a few years .
Most 91 polaris 400's are 2-stroke , and there is an oil tank in the front . Make sure the oil is 2-stroke oil for injection .
check fuses, check bulbs, from there see if there is a grond for your reverse lights that may need cleaning. If still no lights, make sure there is a good wire back to the transmission for your lights. Still no luck, look into the sensor on tranny for your reverse lights. Good luck.
presuming you've checked all the fuses and relays theres a sender switch on the transmission should have 2 wires attached to it.. make sure the wires are not disconnected or damaged
The most common reason for and electric fan not to run is a disconnected wire. Make sure all of the wires are connected and not corroded.
Air / petrol setting in the carberator requires setting. Also check the float level and needle height.
On a 2004 Polaris Sportsman 500 ATP HO, you should grease the front and rear suspension components, steering components, and drive shafts. Use a high-quality lithium grease and follow the recommended intervals in the owner's manual for regular maintenance. Make sure to clean and inspect the components before greasing to ensure proper lubrication.
check the reverse light switch and all connections
yes,mix it 32-1 or 40-1 ,make sure the oil is 2-stroke for injection or pre-mix
fuel filter is above the radiator. mounted on the frame held in by plastic holders. u may have to take off the front storage compartment to make it easier to access
u have a short in ur wireing.
Bad bulbs? Blown fuse? Bad switch?