MOPED ARMY

good to here that the people who bought these are actually using them. other than reading your plug. all i can think it might be is the restrictions. which can be taken out by some one who knows what to do. aka not me.

this is the treats FA50 simo pipe not a homemade setup, hope its not for nothing

Your rpms are never going to reach the powerband on a stock engine for a simo pipe. You need to mil your head to up the compression, maybe rebuild your bottom end.

that pipe is probably made for a kit that Simonini made at one time.

so im basically not gonna be able to get anything out of it? that blows, hes gonna be bummed, well that will teach him to buy a noped!

no u should be able to use it on stock unless u cut up a puch simo. i would do a plug chop. most people i think are talking about the puch simo which is a total top end pipe for a 75cc kit. i think u r talking about the fa 50 simo which treats was selling which is not a total top end pipe, or so it looks like to me.

i stand correct still looks like a mid range pipe to me, but meh i don't know much about mopeds.

so are you using a phbg or a stock carb? my friends fa50 needed the needle lowered to lean it out at midrange a bit. i would also maybe try it without the air filter. try milling your head. try a hotter and a colder plug. basically you need to try everything if you are having a problem. i know that fa50s don't rev too high stock, so maybe you need some porting done a little bit. probably move the exhaust port higher or lower just a teensy bit. i can't remember what would make it rev higher. you probably need to work a bunch on that thing, but i would assume it would be worth it.

to achieve higher RPMs, you need to throw away the stock 10mm mikuni carb and get something bigger, and drill out your intake to a larger size also. The suzuki FZ50 rascal has a mikuni carb that's a direct perfect fit on the FA50 shuttle, and its a 14mm carb with 14mm intake setup, watch on ebay for one. last FZ50 I rode did 37 stock, but its also a 2 speed.

well a lot of the stuff we suggested is pretty cheap. especially if you work with what you have.