So I just bought my first moped about a week ago. It's a 1980 Garelli VIP 2V. It had some stuff wrong with it, but my friends been helping me with it. It wasn't running with the muffler on so I unclogged it and it still wouldn't run with it on. We put in a slightly bigger jet in it and now it's 4mph faster than it was before AND it runs with the muffler. But it goes abour 29 on flat. Down hills it hits like 31 or 32 and it starts sounding like it's going to explode. It makes a horrible noise so I just let off the throttle. So I'm just trying to figure out if there are little things I could do to make it run faster or if I should just buy a kit. And if I have to buy a kit are there any websites that would have a kit compatible with my Garelli? Holla back!