2015 Pro down on rpm

[Klimbing Kitty]

i have a 2015 pro and it is down on rpm. on packed track flat ground it can hit 8100 but in a pul it sits between 7700 and 7900. Ideas? all stock with a can. I tried cheap fix of dropping 2g of weight but did not work. tahnx in advace

 

[knocksum]

Clean exhaust valves first.

 

[ak]

Check rollers and replace springs if they have a few miles on them

 

[ecut]

low rpm

have you tried a new belt?

 

[Murph]

Agree with the above suggestions. Always start simple.

Belt
Primary spring
Rollers
Clutch weight bushings

 

[The Bob]

Also a quick compression check will give you an idea if its making full power.

 

[eyefish123]

Check the fuel filter. Mine started like that and kept getting worse as I messed with clutching until I put in the new fuel filter. Good as new now.