My 78 CB750F3 Super Sport Project

Posted by Hoko on Aug 21, 2012; 6:05am
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/My-78-CB750F3-Super-Sport-Project-tp4027636.html


This pic is after I have had the bike for several months now and have done a lot of cleaning and armoralling the plastic stuff (soaked it up like a sponge).  Unfortunately I didn't have a camera when I first bought it so you could see it after it had sat on the PO's driveway for 5 years without being started!  Needless to say it was pretty sad looking!  I was doing some work for the PO and told him he had a great bike (I knew it had potential and I grew up riding hondas in the 60's and they've been my favorites ever since).  He instantly said "You want to buy it?" His wife was definately anti-motorcycle and didnt want him riding it, so I thought about it and said "How much you want for it?"  He said it ran great before he parked it except the charging system had quit and he had all the wiring replaced before he parked it, which was $400 and he would sell it for that.  I said "You got it!"
     Everything is pretty well intact except for quite a bit of rust has set in which I will eventually have to address.  I'm starting with the carburetors which are siezed up as far as throttle and sliders.  I want to get it running so I can check the cylinder compression to see what kind of shape the engine is in.  I finally am getting some time to work on it so I will post as I work through it.

The throttle bar is completely siezed up and the sliders in the back of the throat are frozen as well.

The boots on the airbox were loose when I took it off and one of them was torn so those will get replaced.  The boots from carb to engine were stiff and clamps were worn also so I'm replacing all of them so the whole system will be well sealed.

I made a tank with plexiglass and silicone to soak the carbs in about the size of the carbs so I wouldn't have to buy any more of that Chem-Dip ($30/gal!) than I have to!  I should have some time this week to pull all the rubber and gaskets out so I can dip it for a week.---UPDATE--- About 10 minutes after I put the Chem-Dip in the tank with the carbs, it started leaking.  The plexiglass is fine but the Chem-Dip is destabilizing the silicone caulk and it is causing it to let loose of the plexiglass.  So I went to Target and found a plastic container that looks like it will work.