Re: cb750 popping/backfiring

Posted by samgrylls on May 13, 2013; 3:46pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/cb750-popping-backfiring-tp4040698p4040704.html

Yeah sorry, my knowledge about the bike and its workings is mostly based off bits and pieces of info from manuals, forums, etc.  I read somewhere that the battery starts charging around 1400-2000 rpm, so I thought that could be affecting the voltage going to the plugs.  It's all stock (original airbox and filter, 4 into 4 exhaust, stock jets, etc).  I have the Honda service manual that I found online, not sure if I need a Clymer manual or anything.  But yeah, I'll probably go through the whole tune up process anyway, just wondering if there were any specific ideas  right off the bat

On Mon, May 13, 2013 at 10:38 AM, Lucky 1 [via Honda CB750'S] <[hidden email]> wrote:

The alternator does not "kick in" It supplies 1/2 wave AC and the rectifier/regulator converts it to regulated 12 volts.

You are jumping to unfounded conclusions.

You need to give more information.
What kind of exhaust does it have?
What kind of intake does it have?

Carbs come LAST in the tuning up process. All other  tune up items must be
finished first, like setting points gap and checking the static timing.
Valve adjustment and cam chain tension.
You need a workshop manual FIRST.   The Internet can help but some info
on the internet can be incorrect. But if you have a workshop
manual you will have the correct information to do the job.

Working on a CB750 Digger named Rover

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