2008 Vino 125 Rattles on Acceleration  By  mater (Read 1,809 times)

[replyingto=mater]mater[/replyingto]post vid with sound if possible. you'll get much better response. doubt anyone can tell you much without it.

R u sure its not coming from the exhaust? The headers on these tend to go bad and rattle like . Put some pressure against the header with your foot and give it gas. See if it quiets or stops the rattle.

I know what it can be. I also had this happen. When you sit on the scoot the carb gets pushed down against the engine compartment this caused a rattle also on mine. If this is it u can find some thicker gasket material and line the top of the engine case under the carb. The crossbar will somtimes push the intake hose down which inturn will make the carb contact something either the engine case or possibly the crossbar.

No prob hope it helps, hope u had a good 4th also

You have many moving parts so you will hear them move around instead it being silent . ALL two wheelers nuts , bolts and screws will get loose from vibrations and bumps so I like to go over mine every 2 months to keep everything snug . Roller variator weights do make a rattle sound which I thought was a crank bearing at first on my TaoTao but after listening on the CS with a stethoscope I could tell it was coming from the CVT instead of the engine . With more miles rollers will get flat spots from normal wear and make more rattle noise . I replaced my rollers at 5,500 in my Echarm with Dr Pulley sliders . They were still good with a hint of flat spots starting but after reading so many good things about sliders vs rollers I wanted to see for myself . I must say wow sliders are superior in every way ! Much quieter , last longer and perform better . I had 12g rollers and went with 12g sliders were sliders are often a gram less than rollers of the same weight . Takeoff was close to the same but man it had a much better power curve in acceleration and gained 5 MPH on top end . I replaced the belt 7,000 miles later with almost no wear on the sliders but variator guides had wear spots . Now at over 16k of miles it still a beast .

Maybe if you went 1 gram lighter in rollers it would ease the stress on the engine at take off . I have heard and seen where a weight or two came out of the variator and bounced around in the CVT casing

I recently had the same noise. I found the strap around the fuel tank ha stretched a little and was making the rattle only when I was up to speed. I put a rubber spacer between the tank and strap- problem gone.