Source : https://forum.lowyat.net/index.php?showtopic=3290077&view=findpost&p=69564212

Dari yang paling common ke kurang common

1. Minyak tak sampai (EFI, Fuel Pump kong atau carb sumbat)
2. Plug takder api (Plug, Plug cable atau main distributor rosak)
3. Air box hose ke Carb/EFI tak ketat (angin masuk lebey)
4. Immobilizer (kalau ada)
5. Piston ring dah haus, block head ada commercial jumping castle for sale lubang kat lubang spark plug @ block head pasang tak betul (compression dalam engine kurang sbb angin masuk lebey)