I found the problem! It was a crack in the exhaust heat shield. I took apart the cvt and ran the engine without the variator, belt and clutch. The bike still made the noise, i then tracked the noise to the cracked heat shield... I removed the shield and the noise is gone!
rocky- the bike is a daily driver, it has close to 5000 miles. The valve clearance is good, the noise is the chatter from the sliders.
Thanks to everyone for the help!
Tank TR16 150cc 16" wheels 11.5 / 12g sliders 106m & 35p Modified stock airbox w/ uni foam
I haven't had the time to take it apart yet...I previously inspected the sliders and everything looked normal.
Will it damage anything if I run the motor with the variator and belt off I might be able to determine if it is the clutch, belt, or variator that way...
Tank TR16 150cc 16" wheels 11.5 / 12g sliders 106m & 35p Modified stock airbox w/ uni foam
I put 12g Dr. pulley sliders in when I got it new. How often should the slider weights be replaced?
I just don't want something to fail in the cvt... I'm trying to figure out the issue before it breaks something. I am familiar with the normal chatter from the sliders, but this is louder than usual.
should I be looking for anything other than broken springs in the clutch? Does anything need to be greased/ oiled in the clutch?
Tank TR16 150cc 16" wheels 11.5 / 12g sliders 106m & 35p Modified stock airbox w/ uni foam
Gear oil is next on my list to change, I checked it on level ground and the fill hole still over-flowed oil when I opened it up. Oil is changed every 500 miles. I just changed oil this weekend and I did not see any metal shavings in it. I have not checked the valves lately, but they sound much louder if the gap is too large. This noise seems to happen when I am accelerating quickly or decelerating quickly, and it sounds like it is coming from cvt. when the cover is on and I am riding I hear it, and when I remove the cover it is louder...
I will take apart the clutch when I have time to inspect it... This noise has been gradually becoming more noticeable.
Tank TR16 150cc 16" wheels 11.5 / 12g sliders 106m & 35p Modified stock airbox w/ uni foam
Edit- solved the really loud noise... But I can still hear a noise that seems to be coming from the variator area. I have replaced variator and belt, so that rules out that possibility. What happen if a crankshaft bearing is going bad? Any suggestions were to look next? The noise sounds like rattle when it is idling and gets louder when under load. I thought it was slider chatter, but I have ruled that out with new weights and variator.
Hello everyone at the new forum! I have noticed that I have a new noise that is some type of rattle or belt slapping noise coming from the cvt. I have switched the belt to an old one as a test... And the belt seems like it is ok compared to the old one. I have cleaned and inspected the variator and weights. The only thing I have not touched is the clutch. My scoot has almost 5,000 miles on it, it is a tank tr16 150cc with 16" wheels. The noise happens when i accelerate quickly, and sometimes when I let off of the throttle. What does it sound like to you?
