Carburetor Insulator Question

classic Classic list List threaded Threaded
5 messages Options
Reply | Threaded
Open this post in threaded view
|

Carburetor Insulator Question

dllewis5
Hi all,

Has anybody had any trouble in getting the carburetor pushed into the intake insulators without the carbs falling off? I have the original insulators that fit on the engine, but even when putting those on I had a hard time making sure each one was turned correctly to meet up with its appropriate carb.

Several different times when I feel like I have the carbs positioned and tighten down. I'll attempt to start the bike and at least one of the carbs literally pop out of the insulator.

Thanks in advance
Reply | Threaded
Open this post in threaded view
|

Re: Carburetor Insulator Question

shinyribs
Administrator
They can be pretty difficult, especially if they are older and beginning to harden. A little lube helps. A light smear of PB Blaster,WD40,etc. Most important is having the boots lined up to begin with. A straight edge along the carb-side faces helps a lot. They should all be turned to produce a perfectly flat plane.
Reply | Threaded
Open this post in threaded view
|

Re: Carburetor Insulator Question

TOOLS1
Administrator
In reply to this post by dllewis5
I use silicone spray to lube rubber. It makes the carbs slide on a lot easier. I will get one side seated, and then the other. You should be able to tell when they are seated by the feel. There was a guy on here once that said he used ratchet tie down straps from the carbs to the frame to pull the carbs up.
TOOLS
Life is not about the number of breaths, you take, but the moments that take your breath away.
I don't have an anger problem. I have an idiot problem. Hank Hill
Never confuse education for intelligence.
Happiness is a belt fed weapon.
I just can't imagine what could go wrong.
No fire? No explosions? So whats the point of your story?
Those who are too smart to engage in politics are punished by being governed by those who are dumber. ~Plato
It couldn't be done, but the darn fool didn't know it, and did it anyway.
We all got problems. Ksharp
I like vintage bikes because they take me away from the clutter of technology that I work with everyday and back to a simpler time of mechanical elegance and simplicity.. "ninadm"
Darkwing Duck: The worst part of public transportation is the Public.
"That is awesome shit there" Re-Run
"Fear nothing, attack everything" Eric Berry
" Oh, you read that on the internet? Clearly it IS a massive problem. Of course it CAN’t be normal operation."

1976 CB 750-A X 2
1977 CB 750-A X 4
1977 CB 750-K
1976 CB 750 F
1981 CB 750
1966 Kawasaki SG 250
1981 KZ 750 LTD
1973 CB 350
1979 CM 185 Twinstar
1982 Honda XL 80
South of Eden (Kansas City MO)
Reply | Threaded
Open this post in threaded view
|

Re: Carburetor Insulator Question

icerigger
In reply to this post by dllewis5
These things take a little work to get properly seated. As others have mentioned, lube the insulators and make sure they're lined up. Also make sure the band clamps are sloppy loose. The carbs have a raised ring on them and the insulators have an internal groove that mates and holds them in. I sit on the frame while getting mine in to avoid pushing the bike off the centre stand. The first part of the carb should slide in easily, till the ring contacts the insulator. If not, they're not lined up. Then work the carbs up and down while pushing forward. When the rings engage the groove, the carbs should snap into place with the insulators right up against the carb body. The ratchet strap is also a good idea if you don't have the upper body to horse them in.
Livin' my life like a song.

1985 Honda Rebel 250 - "Birdie"
1979 CB750K - "Behemoth"
Reply | Threaded
Open this post in threaded view
|

Re: Carburetor Insulator Question

dllewis5
In reply to this post by dllewis5
Sorry for the late response guys.

Thanks for the advice, I'm glad to know its not just me. i like the ratchet idea!!!.
I'll have to give a try