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I’m in. Love this site!

Well, I did polish the slides on all four carbs and the inside of the caps as well. While it did make a difference in the Throttle Response it did not help the issue I'm having between 4000 and 5000 RPM's. I did put Sea Foam in the gas as suggested by Berttp. The days to ride are getting scarce...

Thanks I'll look into the carb slides. Sounds like it could be a problem. I did check the timing before the ride and it was good. Not sure about the Advancer?

I'm going to try this, It's better that pulling the carbs off the bike. I have some aluminum polish so as soon as I get a chance I'll give it a shot and let you know the results. Thanks!

I bought these carbs off eBay 8 years ago, I took the bowls off and checked the floats, closed them up and put them on and the bike ran perfect until I let it set. Now I’m kicking myself every time I ride it for not taking care of it.

Thanks for the help, Aren’t the slides controlled by vacuum? Also it wouldn’t be a fuel mixture issue would it? When the carbs were worked on one of the fuel mixture screws twisted off. It was drilled out and tapped to clean the threads out. Every since then that screw seems a little loose in...

Spark plugs and wires are not new. I do use 93 octane gas and it is new. Do you just pour the Seafoam in the gas?

I went on a 100 mile ride Sunday on my 1980 CB750K. The bike has 19500 miles and just recently had the Carbs Cleaned and rebuilt. The main Jets and Secondary Jets were not relaced because the guy doing the work said they were fine. The Carbs were also Synced afterwards. I also just finished...

Not sure! Didn’t think about that. I need to try that. If it helps what does it mean?

When I turn the throttle past that point it’s fine.

More like a miss. Kind of a Studder

Well I checked the timing and it was on the money. Not sure what do now. I did notice a coating of oil on everything when I took the cover off the CDI side of the engine. Is this normal?

What’s up with the idle adjustment on the 750’s ? I know the book says adjust at operating temperature but Man oh Man is it hard to keep from burning the snot out yourself!! I have large hands and they hardly fit in the hole you need to reach into and turn the knob. I have scare’s from...

Yes they are stock carbs, and I have not checked timing. It starts and idles good , thought about it but didn’t check it. I’ll check it. Thanks again for your help.

Sorry not sure what needle needs adjusted other than the fuel mixture.

I just realized that the year is wrong. It should be 1980. Good Grief!!

Thanks for the reply, So would it be just one carb or more that need adjustment?

New to the site, love the information on here, Awesome. I have question about my cycle. It has 19,000 miles and has been setting for a couple years. This summer I had the carbs rebuilt by a guy in Califorina that a friend with a VMax recommended. I just went through and adjusted all the valve...

Ok I’m in