Mobes
CB750 New member
I have a '76 CB750F SOHC that I bought about 8 or 9 years ago. I installed air pods, and swapped the original muffler for something louder and smaller. I had the carbs rejetted for the modifications. Since the engine is now breathing easier, i have noticed that the rpm's seem to be quite a bit higher than they were before the work was done. At 65 mph the engine is at 5k rpm's, and at 100 mph the engine is just over 8k rpm's. 4 years ago, the chain broke and punched a hole in the case. I have since fixed it, but I don't remember what the rpm's were before the modifications were done to the bike. I want to get my rpm's lower while cruising, and I'm just not 100% sure on how to do that. I thought maybe changing the rear sprocket to a bigger size would help, and then I thought changing the front sprocket might help. At this point though I'm just not sure of the best way to lower my rpm's. The bike does need some work which I will be doing over the next year, slowly as i want to ride it as much as i can. Any and all advice on this is much appreciated. I know i may have to sacrifice low end performance, but I'm okay with that. I like having fun in the top end, and saving some fuel would be nice too. Thanks in advance.