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Discussion Starter #1 (Edited)
This build began as a very clean 1990 Honda NS50F, which is a rare single-cylinder 49cc two-stroke motorcycle. A crankshaft coupler was designed to convert this motorcycle to a twin-cylinder engine displacing 144cc. Naturally, many hours on a lathe and milling machine were required as well. No expense was spared purchasing engine parts like the 72cc Autoboy big bore kits that include specially designed cylinder heads. The twin exhaust system is by Librapro. Check Webike Japan for more information and prices on these parts and the Kitaco parts listed below. This is a seriously fast NS50F; it made 17.89 horsepower and 13.07 foot-pounds of torque at the rear tire when measured on a dyno at Barber Vintage Festival. A stock NS50F produces 7 horsepower, so the numbers speak for themselves. It has a clean Alabama title. $3,200. Call me at 210-313-6597. Serious inquiries only.

Librapro Bark-SP M-9 Exhaust X 2
72cc Autoboy High Power Bore Up Kit X 2
Autoboy High Power Cylinder Head
Kitaco Big Carburetor Kit with Mikuni 24mm Flat Slide X 2
CF POSH Racing C.D.I. Super Battle Ignition Module
Kitaco Racing Clutch Kit
Kitaco Headlight Kit
KOSO Speedometer, Tachometer, and Temperature Gauge
Custom Paint Job
Honda MB5 Bobbed Fender
Hotwing Glass Seat
Honda CBR250 Radiator
Renthal Chain
New Rear Tire

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