Quote:
Originally Posted by fdurancol
Hello everyone, where can I get parts for this engine, it has a knocking noise not in idle not accelerating but when engine is decelerating (rev up no noise let go gas tic-tic-tic)
I will start to investigate this noise furthermore but I am afraid to start needing replacing parts.
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Have you adjusted the valves? That should be #1 on the list. And, there should be about one quart of 15W-40 engine oil in there (motorcycle engine oil, or Rotella T4). Other oils might work based on recommendations from forum members.
Engine parts have limited availability, and many of them are not properly described in the vendor's listings with ambiguous engine names (often on aliexpress, etc). This engine is a Zongshen CB250F, specifically the 172FMM. Either designation might show up, but sometimes it shows CG engine. This is probably the most difficult issue with these bikes.