2001 Kat 600 Help

[glavinlh]

i went riding this weekend on the highway. and now my bike maybe its me sounds a little weird. sound is weird to discrib sounds when i put my head up to the motor at idle. a low grinding or thumping noise. very faint. my friend said its normal his sorta has the same nice but hes got a yzf600.. but needless to say worried. next thing i experienced after this almost 1hour 45minute ride i stopped and turned my bike off. to rest a minute and well it wouldnt start. waited like 10-15minutes and she fired right up. and i have a slight thump coming from rear wheel area atleast i think its rear wheel when i pull in clutch. could it be that my tires at 26lbs just check pressure or my chain to tight? but i dont know the hight for the chain. i got it with 19050 and its a 20256 miles. it sounds diffrent than day 1 and performs diffrent. but i also added seafoam cause the owner said it sat for almost 3 years i have gained alot more power using seafoam and she pulls very well now compared to day 1. and did oil change before i got it. should i just do an oil change just incase they lied to me ab it? again i love this bike so much and just worried and figured someone might have some advice or awnsers to my question. it also has a k&n air filter, D&D pipe and jetted now. please some help. i can record sound but everyone knows how that might turn out. if someone can post audio of how there engine runs so i can compare to other kats it might help..

[tnoorali]

well try to change the oil and observe carfully if you find any metal peices or check the chain

[Stumpy]

26psi in your tyres?!?!

Bump that up to 34 front, 38 rear and see if that improves things - but if there's a grinding noise I'd check chain for tightness, sprockets for breakages, pads and rotors for wear, and also your wheel bearings.

Ditch the K&N and put stock filter back in. I never noticed my Thundercat making any noise like the Katana at all - very different beast.

[crazycraven420]

do you feel anything unusual in your left foot peg? more vibration than the right or a tapping? that may indicate chain problems...but then again you said you can hear it while its parked an idling? So that pretty much eliminates the chain