Buy a new pipe
Classaficados online
Yamaha is a good brand to start with.
Any cheap Chinese made thing (besides Yamaha)
Yes
One can buy cheap Yamaha mixer at most electronic stores. One could try Best Buy, Amazon, eBay, Craigslist, or even at some stores like Walmart or Kmart.
the 15hp murc is the best relay an 18hp and are cheap new i bought my 15hp murc with and 18hp relay and go it for $1800 brand new and runs the best i have ever seen and much faster and cheaper than Yamaha
nitrous lol
One can buy Yamaha ATV's on eBay and Amazon. The prices from these tow sites are cheap and affordable. The site really makes your dollar go the extra mile.
Top end is probably about 105mph whatever terminal velocity is for a bike this weight , from a height of 250 feet from beechy head ha ha If you want to make a 125 go faster ie over a hundred then you really need a two stroke and have it derestricted apprilla are famed for their 2 strokes & will go well over 120 but they are a bit more expensive to buy second hand and quite expensive to derestrict properly.Better of saving your money and if you don't already have it get a full licence and get a bigger bike. Bandit is a good platform to start from & relatively cheap second hand
One can use a Yamaha PSR 175 for a computer. Keyboard a required for a computer. Also, one can purchase the keyboard for a very cheap price at Staples.
A Yamaha Clavinova cost over $4000. This bike is pretty cheap compared to other Yamahas. This bike has great fuel mileage and is very easy to ride and control.
The companies that specialize in producing cheap Motocross gear are companies like Fox Racing, Cummins, Goodyear, Chevrolet, Mazda, Honda, and Yamaha.