Engine Complete 12“ wheel 788mm drive belt / secondary air system / rear drum brake 139QMB 50cc
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Description
Engine Complete 12“ wheel 788mm drive belt / secondary air system / rear drum brake 139QMB 50cc - complete engine for China-based 4-stroke mopeds with 12-inch wheels and rear drum brake.
The engine comes complete with all necessary drive components, alternator, starter motor etc. The carburetor is NOT included.
When installing the engine, please take a close look at the alternator: If the ignition cable plug that comes with the new engine has more or less pins than the original engine, please keep the original rotor and alternator. This is a version with 2 pins. All other components are identical to the stock engine.
Note: Always check engine and gearbox oil level after installation. We recommend replacing the rather poor oil used by Chinese manufacturers with higher quality engine oil; keep the original oil for a run-in period of about 50km, then change it. You should also check the valve play. We recommend a valve clearance of 0.08mm.
For vehicles WITH SAS (Secondary Air System).
| Engine Complete 12“ wheel 788mm drive belt / secondary air system / rear drum brake 139QMB 50cc | |
|---|---|
| Article no. | BT34699 |
| Weight | 23,70 kg |
| Brand | Standard Parts |
| Product type | Engine complete |
