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View Full Version : Idel RPM On Honda Magna



Bonez
04-28-2010, 11:16 PM
How can i adjust the idel speed up on my Homda Magna 85' ?

D. Dub
04-29-2010, 02:23 PM
On a bike that old - poor idle is more likely a carburetor problem or a vacuum leak than a simple adjustment problem.

Graham_A_M
04-30-2010, 09:53 PM
^ Also potentially symbolic of a worn engine. Yes there is a screw you can adjust to alter the idle rate for either each or both carbs (depending on the model/engine size). Come to a beyond meet sometime and I'll adjust it for you, or PM me Perhaps I can meet you at a gas station and quickly adjust it for you. Correct Idle should be 950-1050 RPM. If the idle constantly fluctuates, then there is a possibility the carbs are either dirty or not in proper sync, but most likely the top end is due for a rebuild. As these engines wear, they require a bit of a increase in idle to compensate for their lower compression. Although almost all carbed bikes idle a bit low when their cold.