KymcoForum.com

Scooters - 50cc => Agility 50 => Topic started by: blue on July 03, 2009, 04:13:11 PM

Title: need help
Post by: blue on July 03, 2009, 04:13:11 PM

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.

Title: Re: need help
Post by: OldGuy on July 03, 2009, 06:13:01 PM

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

Title: Re: need help
Post by: blue on July 03, 2009, 11:58:53 PM

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.

Title: Re: need help
Post by: OldGuy on July 04, 2009, 02:33:04 AM

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

Title: Re: need help
Post by: blue on July 04, 2009, 03:17:41 AM

Both on the stand and off.

Title: Re: need help
Post by: chubbyrockstar on July 05, 2009, 06:34:43 PM

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.

Title: Re: need help
Post by: chubbyrockstar on July 05, 2009, 06:35:53 PM

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.

Title: Re: need help
Post by: blue on July 06, 2009, 12:45:54 PM

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.

Title: Re: need help
Post by: blue on July 06, 2009, 12:47:38 PM

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

Title: Re: need help
Post by: blue on July 07, 2009, 02:17:28 AM

could it be anything here.

Title: Re: need help
Post by: wordslinger on July 07, 2009, 10:58:18 PM

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

Title: Re: need help
Post by: blue on July 07, 2009, 11:31:00 PM

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

Title: Re: need help
Post by: wordslinger on July 07, 2009, 11:33:43 PM

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