Re: Is this CB750F a Good Buy?

Posted by motogrady on Apr 30, 2013; 11:14am
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Is-this-CB750F-a-Good-Buy-tp4039828p4040038.html



First off take the starter and put it on the workbench.
Charge that 12v battery up.
Take a set of jumper cables, black to neg on the battery and the body of the starter.
Red to the hot side of the battery, then just touch the lug on the starter where the big wire goes with the other red end..
This gives you strong 12 volts right to the starter, bypassing all the wiring and components
that might be bad.  If it turns good like this, somethings up in the wiring harness, a connector
or the relays that let the juice thru.
If it''s still cranking slow, or siezed up like this, it's toast imo.  Take it apart and try to clean and
lube anything you see that might be binding things up.  You have nothing to lose at this point,
and you might fix it.

Cleaning the carbs, check the stickies at the bottom of the front page, there's a few way's
to clean them.  Remove all the jets you can, keep everything in order and seperated, and just spray
the starting fluid thru all the passages you can.  Some of the passages are real small where they dump into the opening of the carb, like the size of a sewing needle small.  Mine dump right around the
choke butterflys, there's 3 of them.  The small, thin guitar string, work that sucker as far back in the holes you can, then spray some more, work it some more.  3 or 4 times.  Then blow everything out with
100 pounds of compressed air, both ways (back to the jets, then from the jets to the throttle opening.)

I think it was Lucky or Rerun that have a thread here on how to get some of the jets out for
different years if all is clogged, it's good, just be patient with this part.  You mess up 1 carb, it's gonna be real hard to find that part, if not impossible, which means a new set, which new go for about 800 bucks.

Take your time, be methodical, don't worry about riding right now, there's plenty of time this season,
it's still early.  The bike needs your help, give it to her.

And by the way guy, congrats of taking the plunge, and welcome to the club.  
Keep in touch.