help me!!!!!!!

[dkripper911]

my 400 is bored .20 over, brand new rings new head(valves springs ex... off ebay ) the only thing not replaced is the cam chain. my motor ticks realy bad but only at idel and low speeds i cant figure out what it is. its almost like a slaping or knocking noise. besides that thought, the bike runs great it starts great and idels fine what can it be the timming chain , or the clutch or what?:confused:

[Bill Fuller]

Did you have the cam out? If so I would bet you didn't put the decompressor dowl pin back in the bottom of the cam bed. If you don't have a decompressor on your cam (Hotcam) then it could be the valves need readjusting. If you are sure about the valves and dowl then I would problably say it's the cam chain or tensioner spring is worn.