Unrestricting a Tecno Estoril Exhaust
A little-known fact is that they have a restrictor in them. To remove the restrictor you must take the exhaust off, remove the silencer/baffle, then cut open the exhaust body at the widest part. This can be done with a dremel metal cutter tool. Once this is done, towards the rear of the exhaust before the bend, you will see a metal cone restricting the air flow of the exhaust. This cone must be taken out. There are 3 welds holding it in place. Taking it out can be done with the dremel tool again. Once it is out, all you must do is weld the two parts back together PROPERLY (this involves welding), lined up right and what not, and then put the silencer back on and WHAM. Put that thing back on your moped and you should have a good 3-5 more mph's in your moped. Remember like always. UPJET UPJET UPJET and when in doubt, go rich. Nobody wants a "boat anchor".
By Koh Schooley