Exhaust- I put them on for SAFETY (noise) as the stock exhaust is not restricted- tested
PD19J is a step bore, some clones are true 19mm- haven't tested the performance differences, just bought and rebuilt a bunch to check jets, etc
The kits I buy from a wholesaler incl premium 82cc BBk, exhaust, and true A9 cam-- i've only done about 30 so far, but every one performs great -- just confirm what you are getting
filters.. I still run stock air & fuel. no mods
digital instrumentation-- found a wholesaler that is bringing in a good quality Chinese digital instrumentation to compete with trail tech. it has speedo, odometer, tach, fuel guage or temp guage, clock, turn signals, high / lo beam- will be buying and installing my first one on a replacement testing scooter
would need to add voltmeter and maybe outside temp in another gauge
batteries, i like chrome pro, they are reliable and have good warranties
faster than traffic??? then be careful, my setups can haul me around at speeds close to 60mph (gps verified)
btw.. will be testing all the different versions of carbs on my testing scooter after it is seated
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