- YAMAHA MOTORCYCLE SERIAL NUMBER WIZARD HOW TO
- YAMAHA MOTORCYCLE SERIAL NUMBER WIZARD MANUAL
- YAMAHA MOTORCYCLE SERIAL NUMBER WIZARD FREE
Stock Chappys are usually equipped with a 19mm intake, a Mikuni Carburetor featuring a cable choke, a hose running to an air filter/air box, and a reed valve. Stock exhaust are the most performance limitation for 50 and 72cc. It can reach more higher rpm, up to 7hp with bigger carb/intake/exhaust. Polini kit fit only on 49.9cc, and is a 62cc.
YAMAHA MOTORCYCLE SERIAL NUMBER WIZARD MANUAL
The 50cc version with 4 speed manual gearbox (like Swiss ones) ride about 40-45mph, stock, certainly the most powerful 50cc version of the Chappy, with an engine like a patchwork of other Yamaha engine (pw50, yz80, rd50 and fs1 parts.)Įuro 50cc 2 speed automatic gearbox reach 27-30 mph, and 30-34 for older models with mountain gear switch before the max 28mph law in most euro countries. A kit does exist from Polini to convert an LB50 to a 72cc displacement top end. In comparison, the LB80 can get to about 35mph stock and packs enough power for the experienced rider to perform a wheelie upon take-off. The ride feels much like coasting a bicycle down a small incline. While the engine's lower ends of each model are usually identical, the 50cc top end does not pack enough power to push the bike any more than about 21 to 23mph (depending on the rider's weight). There is a very large difference between the LB50 and LB80 models.
YAMAHA MOTORCYCLE SERIAL NUMBER WIZARD HOW TO
See this video for instructions on how to do it: Performance Getting the kickstart spring installed correctly is a bit tricky.
YAMAHA MOTORCYCLE SERIAL NUMBER WIZARD FREE
Late automatic models haven't low gear selector, and cannot start without kick starter, as the gear is in free wheel if motor isn't running. Caution must be taken not to do this at too high a speed, or the transmission may get damaged. Once started, it should be ran in low gear for a few minutes until it warms up, and then stopped, shifted into drive ("D"), and ridden normally.Īn experienced rider will be able to pedal the bike (if it has pedals) to a slow speed (while in neutral), and then popping the shifter into either Drive or Low. In extreme instances where the bike does not have an easy cold start, the bike is started easiest by bump starting in low gear ("L"), since the motor will be revving higher as the owner pushes the bike. Bump starting the Chappy has not been proven to cause any type of transmission damage or failure when performed properly. Since the kick starting mechanism is known as the bike's biggest weak point (along with the cable choke), most Chappy owners prefer to bump start their bikes. Shifting the bike while moving or reving the motor will usually not work, can be very dangerous (violent jerks often happen), and the transmission gears easily destroyed.ĭue to the nature of the transmission, the Chappy is one of the few mopeds/scooters that can actually be bump started even through it is equipped with an automatic clutch. In order for the gear selection to be changed, the bike must come to a complete stop and the engine must have a very low rev. The gear selector (shifter) is located on the left side of the motor, just above the side cover. Technically, there are 4 speeds all together, but the transmission may only be set to use either the lower two speeds (for extreme uphill climbing, trail riding, etc) or the higher two speeds (for all around on-road cruising).
The manufacture date is more often the approval date of the model, the first three characters of the VIN are the version.īoth engine models include a 2-stage 2-speed automatic transmissions. The frame will also have a paper label behind the headlight stating the original motor's displacement, the manufacture date, and a VIN number. On the left side of the engine near the cylinder's base, there is usually a small engraving that states the displacement of the motor, either 50cc or 72cc. The LB50s was usually known to have pedals installed into the swingarm, while the LB80s normally had the pedal system absent all together.īecause people often modify their Chappys for their own personal riding preferences, pedal existence alone should not be used to identify what model the bike is.
The most common models are the LB50 (50cc model) and the LB80 (72cc model). They were produced in the 1970's and early 1980's. The Yamaha Chappy was introduced by Honda alongside its small trail bikes.
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