An engine will operate with it's lowest required octane, which, in the USA us usually 85 octane, hence 87 for good measure. 85 octane is for 9:1 compression. Our scoots run 10:1 compression, which means 90 octane or better.
The bikes will run on 87, but expect ping and knock under load.
A higher octane does not equal better performance. If you require 85, 93 isn't going to give you more power.
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2011 Roketa MC-23-150
4T 150cc 157 qmj
24mm carb w 115 main jet and paper cone air filter
Manual petcock w Tygon fuel lines
Scrappy Dog Scooters Retro-slash stainless straight-thru exhaust
RED spring clutch
Adjustable CDI (brand unknown, it's blue and red and works great!)
KOSO high performance variator w 12g sliders
Gates Powerlink 835-20-30 belt
GPS verified 65mph on flats.
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