this mod is for 400ex's that have reverse. my 400ex has reverse and sometimes it can be a pain when the motor is cold and you need to back up because the motor dies easy when trying to take off in reverse (more so if you dont like to choke it, which also gets annoying). the annoying part is that after the motor dies; you have to shift to first, pull in the clutch, start it and give it gas (so it wont die again) as you turn the reverse nob and downshift to reverse. Then try backing up again lol. this mod will allow you to start the motor just by pulling in the clutch while you are still in reverse. this mod will also eliminate the reverse speed limiter, so you will be able to go much faster backwards (be carefull at first, it can get pretty squirrely in reverse at high speed). with this mod the red reverse light will still turn on when you are in reverse.


first turn on the key, but dont start it. now shift to reverse so the red light is on.

if you look down by the shifter there will be 2 wires going into the transmission, one labled N for neutral and one labeled R for reverse. follow the wires upwards until they are just below the plastic side pannel.

cut off some of the black tape coving all the wires. you should see 2 identical gray wires and a thick cord with black tape around it separate from the gray wires.(ignore the thick cord, it is just the green neutral wire encased in a thick coating of cilicon) if you only see one gray wire, you didnt remove the black tape high enough on the cord. re-tape it and cut the cord higher up.

now for the exciting part lol.... use a pair of scissors or a knife to cut just one gray wire. as you cut the wire watch the red reverse light on the handle bars(remember the key is still on and it is in reverse)

if you cut the wrong gray wire, the reverse light will shut off. reconect the wire and cut the other one.

once you have cut the correct gray wire, cut off about a half an inch piece from the wire. (so the ends of the wire dont rub and make a connection)

now just tape it up really good and your done.

(lol sorry the directions were so long to do something so simple.... if you read it all and still managed to screw this up you should not own an atv...lol)