Motorcycle Repair: Approach to a 1978 Honda CB750K, 1978 honda cb750, float bowls


Question
Hello, I've just picked up a 1978 honda cb750 K for about 750.  It's in good physical condition.  The previous rider took care of it but it's been parked for about three years. I first bought it about 3 months ago and rode it for about a week before putting it up for winter (I'm in alaska).  I replaced all the fluids and charged the battery before riding it, but that's about it.  It is very difficult to start.  Once it started it ran a little rough, but it ran.  It became so hard to start after that week, that I took the carburator out, completely broke it down and cleaned every piece.  I couldn't get a hold of a Carb kit (I was told nobody works on or has parts for bikes this old), and all of the gaskets looked good so I just put it back together.  I think I understood how to do the float bowls but the book wasn't very good with that.  Also, with the carbs upside down, three of the bowls sprung back up when pushed down and one did not.  How bad is this.  How do I make sure the carbs are working right?  Is a manometer necessary?

Since it has been sitting for a while, what order should I approach this bike?  I have all winter to work on it.  If you were going to give a bike the complete work over to make it run well, what order would you go in?  I have the Clymer's manual and am an average mechanic.  I can buy special tools if I need it.  Sorry if this is too many questions.  Thanks alot

Answer
Hi Scott,

Sorry for the delay in responding. I'm very busy with overtime lately.

The fix is simple. I'll need to send you carburetor information files. You'll be able to understand carbs nomenclature, tuning, claning, and synchronizing with these files.

My email address is: mshively1@woh.rr.com

Send me an email with this question as the message. I'll answer each question and return files.

Respectfully,
Mark Shively
Dayton, Ohio