Recently went to the track with my daughters lt80. There were many other lt80s there all with stock pipes...but my daughters was so loud it was checked twice for muffler/spark arrester ...I just installed a oem muffler ... Bottom line I’m wondering even with a stock muffler why it was so much faster and louder than the other LT 80s there... It was also smoking a lot and the other ones weren’t.I mixed at 32/1.... It also had larger tires and handlebars then the others so it looks a lot bigger ... She loved the LT 80 she was jumping up and everything. The engine just seemed a lot faster louder and smoker than the others just wondering why thanks

 

The ;pipe may need to be burnt out. (smoking)
No real reason I can think of with the exception of....Maybe your daughter is like mine was. A natural racing,boy kicking, gal! Mine ended up the 11time National champion. Grab your bank account and hang on for the ride.

 

she’s defiantly loving the lt80 compared to her crf50...she was launching that mini with ease....i cleaned the exhaust like you recommended.i guess it’s just loud for some reason .and as far as the smoke the old owner told me he was mixing the big bottle of castor 2 stroke oil /with 5 gallons of gas .which seems like way to much thanks for the response.. I wish there was a type of atv racing in so cal ...my sons been riding since the age of 2 he’s almost 5 now he rips it ...my daughter just started on the atv she’s been on a dirtbike and it just couldn’t keep up on family rides ...ya this sport gets $$$ had to get my wife a atv ,son daughter just so I had riding buddies lol

 

You mentioned the pipe was OEM, which should be either genuine Suzuki or made by whoever Suzuki gets to make the pipes, but lots of aftermarket makers have climbed on the bandwagon and claim OEM specification, which should mean just that. However this depends on the aftermarket supplier copying OEM exactly, and they often don't. I guess a two stroke pipe will quieten anyway, as carbon starts to form a sound deadening layer inside it.