Re: Got my 1978 CB750 out
Posted by shinyribs on Jun 03, 2012; 12:53am
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Got-my-1978-CB750-out-tp4021716p4022132.html
There is a point of diminishing returns,though.Yes,too lean can cause a piston to melt,or more common,just overheat and swell causing it to ''stick'' in the bore. But too much fuel can cause fuel wash.Fuel wash is when the motor consumes more fuel than it can handle,or more than the carbs can atomize,and the wet,raw fuel will strip the pistons and cylinder walls of oil and lubrication.Obviously that can seize one,too. Much easier to ruin a motor with a too lean mixture vs. too rich. Lean can create more heat which can help create horsepower ( energy is heat) IN SOME INSTANCES. Like we say at the track-''lean is mean ,but fat(rich)is happy!
Best to err on the side of caution (rich) but it is possible to go too far.
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Got-my-1978-CB750-out-tp4021716p4022132.html
There is a point of diminishing returns,though.Yes,too lean can cause a piston to melt,or more common,just overheat and swell causing it to ''stick'' in the bore. But too much fuel can cause fuel wash.Fuel wash is when the motor consumes more fuel than it can handle,or more than the carbs can atomize,and the wet,raw fuel will strip the pistons and cylinder walls of oil and lubrication.Obviously that can seize one,too. Much easier to ruin a motor with a too lean mixture vs. too rich. Lean can create more heat which can help create horsepower ( energy is heat) IN SOME INSTANCES. Like we say at the track-''lean is mean ,but fat(rich)is happy!
Best to err on the side of caution (rich) but it is possible to go too far.
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