My YS's and Saitos continuously loose stock mufflers. I tried teflon tape and loctite tricks. Did not help.
Then I switched to high pressure teflon (steel mesh covered) hydraulic tubings to which I attached stock
mufflers. This worked fine for sime time until teflon inside the tubes got melted and burned off. Next were
Hatori headers for tuned pipes,but those like to break off at the joint. In case of YS's 110 and 140 the stock
OS90 muffler is OK and stays tight,but arrangement does not fit all installations. Now I am planning to try either
Flexible mufflers to use with stock mufflers or Slimline mufflers by themselves. Which would better on the long run ?
Thanks in advance