cam chain tensioner help

[bean2080]

i new on here and i need some help. i need to know if there is a spring inside of the cam chain tensioner on a 400ex. i know on the 450r there is but im not sure about the 400ex. my timing chain was loose and i turned the screw on the tensioner make it tight but i wasnt sure if there could be a spring in there thats broke or not? if there is how do you tell if the spring broke? i am thinking that it does not have a spring but i just wanted to make sure before i put my motor all back together and ride it.
thanks

[drew416ex]

It does have a spring. Take the back cap or whatever off with a philips head screw driver and get a small flat head and stick in the hole. If you turn it to the left and let go, you should feel it spring back.

[bean2080]

ok ill have to check that out tomorrow, im thinking that it does not spring back. now could i ride it with it broke or will the chain just get loose? i have been wanting to start this bike for a about a month because i did some motor work on it, i just want to see if it runs right since i fixed it.

[CSR400EX]

it sounds like either the tensioner spring is broke, or your timing chain is strecthed. pull the tensioner out and it should be fully extended, if not its broke.

oh and i wouldnt start it like that. turning the motor over is ok but i would definitely not start it.

[bean2080]

i do remember that the tensioner wasnt out all the way when i took it apart. i will have to get another one. now do you all know if the set screw comes with the new tensioner or not? i could proubly find out when i order it if you all dont know.
thanks