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Author Topic: CB750 vacuum hoses!  (Read 382 times)

Offline manahmana

  • Posts: 10
CB750 vacuum hoses!
« on: Sep 12, 2017, 21:01:25 »
Soooo... Thought I'd get a jump on this. Haven't been able to find anything to help me out. Cleaning up a DOHC CB750. I dumped the stock airbox and will bolt on mikuni carbs and pods. What the heck do I do with these vacuum hoses (pic1) ? Do they serve any function without the airbox?

Also as I was stripping all the scum and dirt off I kind of like the brushed aluminum look (pic2) any good suggestions on preserving? This bike will never sniff the rain but I don't know if it will eventually oxidize on its own.






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« Last Edit: Sep 12, 2017, 21:29:16 by manahmana »

Offline esmoojee

  • Posts: 165
Re: CB750 vacuum hoses!
« Reply #1 on: Sep 12, 2017, 23:13:46 »
They’re crankcase vent hoses. You can do, or rather should do one of two things.  Put small pods on the openings or get a oil catch can and run it into them. Either way you want some type of filtration on them to keep water and dirt from going into your crankcase.  Also, it will oxidize on its own.

Offline manahmana

  • Posts: 10
Re: CB750 vacuum hoses!
« Reply #2 on: Sep 13, 2017, 12:20:22 »
They’re crankcase vent hoses. You can do, or rather should do one of two things.  Put small pods on the openings or get a oil catch can and run it into them. Either way you want some type of filtration on them to keep water and dirt from going into your crankcase.  Also, it will oxidize on its own.


Got it! Appreciate the info. Thank you!


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Offline esmoojee

  • Posts: 165
Re: CB750 vacuum hoses!
« Reply #3 on: Sep 13, 2017, 20:12:11 »
You’re welcome, good luck. If you want to keep the raw aluminum look just shoot it with a hi temp matte clear coat. 

Offline Cookie

  • Posts: 590
  • God help the child who grows out of everything
Re: CB750 vacuum hoses!
« Reply #4 on: Sep 14, 2017, 16:34:44 »
You’re welcome, good luck. If you want to keep the raw aluminum look just shoot it with a hi temp matte clear coat.

What esmojee said. Or, depending on how big an object money is to you, you can clear powder coat or anodize.
* Insert something witty here *

81 CB750C
84 Tempter - well, most of it...