yes sports exhausts generally are noisier than standard pipes, running the standard air box will make it a bit quieter if your currently using an open filter
it might have a little hole somewhere or its not tighten up near the cylinder, or the stuff inside the endcan is gone. but tts are noisy i had it on 70cc aprilia
ive just taken my zx pipe of my nrg (the same nrg as you ) as it was so stupidly loud. i thought the wadding might need repacking but a brand new can came up for sale so i bought that and it was no better
yeh they are the zx is more motocross sound to it but i have a tt pipe ive just never used it and the hole down the centre of the tt end can is double that of the zx so maybe thats why yours is a deeper sound to mine but yours bud has that bwaaang bwaang sound which is a tell tale sign of being a bit lean what size jet you running
standard is 53 i started with a 65 then went down to a 62 which most peaple use but i found it a bit rich so ended up with a 60 and it was spot on. you want a box a 6mm dellorto jets i got mine from ped parts (i think) a box of sizes from 52 to 72 was about £12. your not fitting a open filter are you ? and leave the brass plate in the carb intake
i wouldnt like to say budlike i say the tt and zx have a different size bore in the end can and different size expansion chambers which will give different back pressure and affect the mixture in a different way like i say your best of getting a box of jets and a new spark plug or 2 and start high and work back down or if there is a garage near you wich a dyno they dont charge much to jet/setup mopeds most ive ever paid on one was £15 and it was 2 fella's on it for an hour
Is it? Ive definitely seen a 56 jet that hadnt already been changed in an ac nrg carb...anythings possible with peds though i guess
im going to be blocking the oil inlet on the carb as im running it premix due to the oil tank leaking so ill have a lil look then
pre mix is all good if you have a lc ped and running an expensive setup but on an air colled 50 id just buy a second hand tank of fleabay there only a ££££