Ok, i'll try to help ya out on this one but once again a little more info is needed. What caused it to start hard? What did you do to fix it?
I'll take a couple stabs in the dark on it and you can let me know how it goes.
My first suggestion is to run it at top end or whereever you might get it to and then check the spark plugs for signs of an overly rich or lean mixture. Make sure that you do not have an obstructions in the airbox (leaves, weeds, paper, anything that could cause a blockage). Check your choke adjustment if you think it is running too rich. The other thing i would check is where the drive belt is riding in the secondary clutch (driven pulley) and make sure its not riding too low in the pulley. Make sure the belt isnt too narrow, or too streched out. The last thing i might look at if all else fails is to check the exaust pipe for a mouse, chipmunk, or squirrel nest (put hand under exaust outlet and make sure you have a good flow coming out, make sure exaust flow increases with RPM)
I would put my money on partially plugged main jets in the carbs.
I'll take a couple stabs in the dark on it and you can let me know how it goes.
My first suggestion is to run it at top end or whereever you might get it to and then check the spark plugs for signs of an overly rich or lean mixture. Make sure that you do not have an obstructions in the airbox (leaves, weeds, paper, anything that could cause a blockage). Check your choke adjustment if you think it is running too rich. The other thing i would check is where the drive belt is riding in the secondary clutch (driven pulley) and make sure its not riding too low in the pulley. Make sure the belt isnt too narrow, or too streched out. The last thing i might look at if all else fails is to check the exaust pipe for a mouse, chipmunk, or squirrel nest (put hand under exaust outlet and make sure you have a good flow coming out, make sure exaust flow increases with RPM)
I would put my money on partially plugged main jets in the carbs.