Re: new guy with a prob..please help!!

Posted by hondacb750f on Mar 31, 2014; 6:17pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/new-guy-with-a-prob-please-help-tp4049646p4049710.html

ok i have a thought and it is just a thought so bear in mind. I am still new and tackling my own air leak issue's.   You know you have gas going to the carbs.  And you know this because they are leaking from being flooded.    But do u know if they have been benched synched?  



 Here is a couple things I would try.

1  shut the pet cock off and drain all the gas from the carbs.

2  Turn the pet cock back on and with the kill switch in the off position.  And the number four carb drain slighty open turn it over till gas comes out of the carb drain.  

3  turn petcock back off.  and close number four drain   This shoul give you enough fuel to start the bike with out flooding it.

4A  turn the kill switch to run.  twist the throttle several times to get fuel to the motor. ANd go with the start button for only a couple seconds.

4B  Turn the kill switch to run.  close choke fully and try to start it that way, again only for a couple seconds.

5 pull the spark plugs and identify the size, color and wetness of them.    report it back to here.


you may need to add fuel to you carbs while doing this but do not leave the petcock on.

6 and you need to be careful with this one.  there is a hose coming from the tank to a lill thing on carb number four. and a hose from that to the carbs, remove the hose from the tank and piece.  and put it directly  to where the piece meets the carbs.  turn the gas on and repeat the  steps to get the fuel to carb number four.  Shut the gas off. this will not help with the flooding issue. SO just make sure you shut it off.   If after all these steps which should take 30-45 mins at the most.   ANd nothing changes.  Charge the battery.  THese bike are horrible will even a lil loss of battery power. After the battery is charged good try it again.    If it does not work, then it is time to pull  the carbs and see what was missed the first go round.


 ok now the carb flooding problem. the last time you where in the carbs. And cleaned them where they gummy or tacky with residue?  Where the float bowl needles rubber tipped or medal tipped?  Where the floats damaged at all?    

   Is it the right petcock.  These bike to the best of my knowledge. really do better with the on/off'/ reserve.  Virus the on/ primer/ reserve,  I hooked my Yamaha tank up to the Honda and left for about twenty mins. when I came back I had a flood in the basement. expensive lesson learned.