whats the best fix for a slipping clutch a heavy spring or just get the clutch plate with heavy counter weights

 

first...why is it slipping?

motor work?
is it adjusted properly?

how about its just time for new pack.

 

major motor work heads done new cams bigger piston an reworked throttle body

 

Good chance if it's already slipped a few times, the plates will be glazed

 

they should have put one in before your bike left the rack

 

The stock clutch won't handle much more than the stock HP. Depends on how much you have slipped it. It should have had a heavier spring put in it when the motor was done. You can always try one now and if it still slips then you need to repair the clutch