need help

[blue]

ok this is it I have new belt and rollers.scoot drives great. fresh oil fresh plug fresh gear oil.
Im hearing a lound nose when I throtle up and at full throtle it quiets down but the sound is stell ther
what could it be. the bike is well takeing care of and rides great but now im not rideing it because im thinking it might do damage to it. can someone tell what might be going on.

[OldGuy]

More info please. What kind of loud noise? Where is it coming from?

[blue]

it souds like a air nose like you would if you had a hole in the muffler.but not quite as bad.
it sounds like its comeing from back side of the bottom of the motor. but not sure hard to pin point.
soft sound at frist but then when I idel up it gets louder then at full thortle it quuets down.
the performance of the bike is great. but just dont wana ride it if it might make it worse.

[OldGuy]

Can you reproduce it with your scoot on the stand or does it just occur when the engine is under load?

[blue]

Both on the stand and off.

[chubbyrockstar]

Blue, was there a change in your idle speed due to the sound? like if you just let it idle does the speed of the idle go up at all?
if so it may be a loose vacuum line somewhere or perhaps the air intake hose is not tight enough on the carb. hopefully its somethin that easy.

[chubbyrockstar]

also, reach under where the exaust meets the bike. you could have lost a nut off the exaust which will loosen up the exaust just enouh to hear a stupid noise, happens to me sometimes.

[blue]

all bolds and nuts are tight. when I idle up souds gets bad then it stops when it reach full throtle but yet sometimes comes back. its lound enough that I dont wana take a chance and ride it like this.its got me puzzled of this.I keep good care of the bike and dont know what went wrong. it does have over 10.000 miles on her.

[blue]

I did notice when I did valves that there seam to be a lot of oil on theam is this normale.

[blue]

could it be anything here.

[wordslinger]

...wow...i'm having the same sort of situation...mine sounds like a "rattle"...

[blue]

well lets help each other out tell me more what your bike is doing.

[wordslinger]

..cool...i started a new thread with all that...laters...