There are 2 coils located under the gas tank on a stock CB750. The stock coils are dual fire 5 ohm coils and the wires can not be replaced. The wires are the number one reason these coils go bad, over time heat destroys the inner lining of the coil wires and turn it into [...]
The Simple Way you can set the cam chain by turning the large nut on the points just A little that will take any slack out of the front of the chain turn it the way the motor turns when running then loosen the stop nut and bolt take A small allen wrench and insert [...]
This problem usually occurs when there is a vacuum leak. Usually the culprit for this problem is the intake boots having cracks or loose clamps.
This is a replacement filter for the stock Honda one Fram part # CH6009 This can be found at most automotive stores