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Author Topic: What are these two ports on top of my '80 CB650C  (Read 560 times)

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Offline verro

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What are these two ports on top of my '80 CB650C
« on: April 10, 2022, 06:01:53 PM »
The bike came with nothing attached to them (It's not running), and I couldn't find anything useful in the owners manual. Thanks!

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1981 CB650

Offline Kevnz

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Re: What are these two ports on top of my '80 CB650C
« Reply #1 on: April 10, 2022, 06:21:40 PM »
I think 1 is the breather and 2 is the tach drive.
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Good grammar: The difference between knowing your #$%* and knowing you're #$%*

Offline Flyin900

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Re: What are these two ports on top of my '80 CB650C
« Reply #2 on: April 10, 2022, 07:16:37 PM »
As a new member there are PDF downloads for the factory service manuals on the site. The owners manual is a more generic operation manual, you’ll need a service manual for any proper service work.
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Common sense.....isn't so common!

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1978 CB550K - Super Sport
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Offline verro

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Re: What are these two ports on top of my '80 CB650C
« Reply #3 on: April 10, 2022, 08:10:36 PM »
Ah I meant repair manual. I couldn’t find any info in there, but i suck at finding things so i probably missed it. ::)
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1981 CB650

Offline fizzlebottom

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Re: What are these two ports on top of my '80 CB650C
« Reply #4 on: April 10, 2022, 08:51:32 PM »
#1 is a breather port that attaches to your airbox to get hot vaporized oil out of the motor.

#2 is where the tach cable goes
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1982 CB650SC Nighthawk
2024 Kawasaki Z900RS
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