My 2013 xj 6 seems to be sluggish in acceleration. Any tips?

Edited April 7, 20195 yr by andrewhall
Moe detail

Air filter clogged ?   when that last service ,? 

 

Thanks. I service myself. Yes, I’ll check the air filter . Does it help to balance the carbs? Thanks again. 

Edited April 8, 20195 yr by andrewhall
Correction

Whats the mileage? I think that'll be fuel injected, not carbs. Easy enough to do if youve got the equipment. Always start with the simple stuff first though, plugs/filters etc, make sure the chain tension is correct and lubricated, if the fuel is more than a couple of months old, dump it and put fresh in