Re: 1981 CB750F carb idle problem

Posted by rrgunslinger on Jun 28, 2012; 10:56pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/1981-CB750F-carb-idle-problem-tp4023762p4023774.html

Do a bench sync.  Cured my issues like that. And make sure all the needles are at the same level. But do the bench sync first.

On Thu, Jun 28, 2012 at 6:09 PM, SmashEmUp [via Honda CB750'S] <[hidden email]> wrote:

I haven't checked the carb isolators. Don't know anything about the isolators! Lol! But I will look it up tonight and check them. Yes, the carbs are pushed in all the way. I stole the carb boots from the new moor because they hold on the carbs and motor very solid. The old set I had were hard and didn't hold well, the carbs would start to back out just from the rough idle. The bike does not have the stock air box. I replaced it with pod filters I bought off of eBay. I know the change in filters can affect idle and performance, but could it cause a sort of intermittent problem like this? I assumed it would be a constant problem if anything. But I'm asking because I don't know, that was just my guess.

As for possibly needing a rebuild, I'm afraid that's what it might be. The bike supposedly ran a week or two before I bought it. I was hoping I could get the bike running first and could ride it do a little bit and completely overhaul the bike in the fall or winter, but it looks like I may have to do that sooner than later.

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