Re: Got my 1978 CB750 out

Posted by Lucky 1 on May 30, 2012; 9:09pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Got-my-1978-CB750-out-tp4021716p4021943.html

Yes I have been through all of that.


Stock air filter/stock air box.
I tried #35 mm stock jet-will not work at all.
I tried #40 mm no good will not work, 1 turn out
I tried #42 works. 1 turn out. 3/4 was too lean.

By the way with these idle jet changes the results seemed very clear cut.
The #42 just works.
Also I tried it with two different light duty mufflers too. Almost the same exact result.

When i go to all the work of removing the carbs and changing jets
I really give it a complete test and re synch the carbs. I try different mixture settings.
I make sure that the combo will not work before moving on to another combo.

A large main jet will protect your bike from seizing up. It is cheap insurance.