I RECENTLY OWN A HONDA RANCHER 400AT. BUT IT JUST DONT SEEM TO HAVEE ENOUGH PULLING POWER FOR WHAT I NEED IT TO DO . FOR EXP I HALL ALL MY FIRE WOOD WITH MY ATV I LOAD IT ON A 8X5UTILITY TRAILER AND IT WILL PULL IT JUST WHEN I START GOING UP HILLS IT JUST DONT HAVE THE GRUNT TO CARY ON THE JOB ANY BODY OUT THERE COULD SUDJEST A GOOD WORK MACHINE NOTING MORE THAN A 660CC WOULD BE HELPFULL .

 

a 400 doesn't pull a trailer? I would think 1st gear would pull for sure. Maybe you need a tune up.

 

How fast are you trying to go with a heavy trailer behind an ATV and how steep of a hill.