Carborator will not budge

[msimm43]

I am trying to remove the Carbs on my 76. cb750 F. This is my first attempt at fiddling with the carborators.

I have managed to get the throttle cables off, and I got all of the connectors on the airbox side of the carbs off. I can not get connectors on the engine side of the carbs to budge even a little.

The manual say that I will have to pry them off, but I wanted to ask for advice before I really set in on them and wrecked something. The rubber is pretty hard and I am not sure if this is normal or if it a result of being 30 years old.

Does anybody have any advice or tips on how to get the carbs lose?

Thanks and happy New Year.

 

[BigBSBusa]

Are you referring to the little boots that attach them to the engine? You may be able to apply a little heat to them.

 

[msimm43]

The little boots are exactly what I am talking about. I will give heat a try and see how that goes.

Thanks and happy new year.

 

[BigBSBusa]

Happy New Year to you also. That should loosen it up so you can lightly pry up with a screwdriver.

 

[msimm43]

Yep, I unbolted the air box. I was hoping I could get it out with the carbs in, but no luck.

I will try the heat tonight and see if that helps.

Thanks

 

[matt365]

I'd use a 2x4 as a lever to get them off. Works great to seat the carbs back in to the boots as well. Soak the rubber boots in some antifreeze, and that should soften them up for when you put the carbs back in too.

 

[Represto]

Really?? I've never heard of this. Does it soften up the rubber? I usually just spray mine with silicon lube.

 

[matt365]

It'll soften it up and make it plyable again. (Antifreeze isn't a miracle worker or anything, but it helps aged rubber)

 

[msimm43]

I thought about silicone spray, but I did not know if that would react badly with the rubber. I did not think of the anti-freeze Thanks for the tip I will try that out when I get around to putting it all back together.

Thanks

 

[msimm43]

Carbs are out! Thanks for the tips.

They came lose with some heat, using the wood handle of a rubber mallet for leverage to get some play, and once I got them loose I squeezed the airbox out the right side. After that they came out no problem.

Thanks again.

 

[BigBSBusa]

Glad to hear it.