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**
How to upgrade your 50cc 139QMB to 60cc or 80cc**
Check
here for
Parts Price List online,
download
EXCEL file, check here for
Service Manual
| Type | Single cylinder\4-strokes\forced air-cooled | |||
| Model | GY6-1P39QMB | GY6-1P44QMC | GY6-1P47QMD | GY6-1P50QMG |
| U/Price | US$171.00 for General, US$176.00 for Lengthening | |||
| Related Factories |
BAOTIAN, HAOJUE, HAOJIN, HUATIAN, JIAJUE, JONWAY, JMSTAR,
KAITONG, KEEWAY, LIFAN, LONGJIA, LONCIN, MEIDUO, QINGQI, RHON, SKYGO, WANGYE, YIBEN, ZNEN, ETC. |
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| Related Scooters |
B08 /
B09 /
B10 /
B12 /
B20 /
BEAUTY /
DNB09 /
F3 /
FALCON E /
FALCON I /
FALCON II / FALCON II B / FALCON III / FALCON IV / FALCON V / GALLOP / L4 / INTENTION / LANCY / NATTY A / NATTY B / NATTY C / PRINCE / PRINCESS / Q1 / Q2 / SOLANA / T17 / T18 / T19 / TANCO / T-FALCON / TORNADO / TURTLE A / TURTLE B |
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| Cylinder (mm) | 39 | 44.0 | 47.0 | 50.0 |
| Piston displacement (mm) | 41.5 | 41.5 | 41.5 | 41.5 |
| Displacement (ml) | 49.6 | 63.1 | 72 | 81.5 |
| Nominal power (km/rpm) | 2.0/7500 | 2.3/7500 | 2.6/7500 | 3.2/7500 |
| Max power (kn/rpm) | 2.2/8000 | 2.5/8000 | 2.8/8000 | 3.5/8000 |
| Max Torque (N.m/rpm) | 2.6/6500 | 3.5/6500 | 3.8/6500 | 4.8/6500 |
| Idle (r/min) | 2000±150 | 2000±150 | 2000±150 | 2000±150 |
| Crankcase has general crankcase and lengthening by 30mm and lengthening by 60mm crankcase. Magneto have octuple-poles AC, octuple-poles DC, octuple-poles complete DC. above the engines can pass EuII discharge standard.Non-secondary gas-filling engine can be produced upon request. |
