660 loss of power

[slow grizzly]

i have a 660 grizzly with major loss of power top speed of only 30mph with 5 more if i close the choke..

 

[mudboy]

sounds like your clutch is not engaging or your diff lock is stuck in the on position

 

[slow grizzly]

is there anyway i can tell if the clutch is working correctly or is there an adjustment that i can do..thanks for the response..

 

[mudboy]

take it apart and check the roller weights and see how much mud is packed in there. that would be about the only way