answersLogoWhite

0


Best Answer

Backfire happens to all types of engines of all land vehicles. This can be caused by incomplete combustion caused by old spark plugs, unbalancedÊtiming, or improperly tunedÊengine. This calls for a visit to the mechanic to fine tune the engine.

User Avatar

Wiki User

βˆ™ 10y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why does a 49cc scooter backfire?
Write your answer...
Submit
Still have questions?
magnify glass
imp