| Why the exhaust pipe smokes ? |
1. Blue Smoke: Abnormal engine oil cousumption, the bike should return to service center as soon as possible.
2. Black smoke: The fuel haven't been fully combusted, or false fuel / air mixture ratio.
3. If 2-stroke engine model been parked or driven under low speed for long time, the engine oil might accumulate largely in the exhaust pipe, causing vast white smoke. The solution is to ride at high speed for certain distance, or apply large throttle for a while, to burn out the accumulated engine oil and stop white smoke from emission. |
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