New guy to the forum and to riding

[01gz250]

Hello names Randy I'm 26 and just bought a 01 Suzuki GZ250 with 9500 miles for $800 love the way it looks only problem is when I'm riding it feels like the bike is chugging but it sounds fine the engine is running great just feels like I'm bouncing back and forth on chain lash but what do I know never owns a road bike before only dirt bikes any tips would be great Thanks.