« previous next »
Pages: [1]   Go Down

Author Topic: 78 cb550k carb lines  (Read 719 times)

0 Members and 1 Guest are viewing this topic.

Offline pablo78cb550

  • Hot Shot
  • ***
  • Posts: 318
  • mmmph.
78 cb550k carb lines
« on: July 22, 2007, 12:40:28 PM »
so i noticed there are two lines going into the carb. one is the 1/4 inch for the fuel line, and another that is maybe 1/8 inch. what is that? a vacume line? ???
Logged
Bikes in hand:
1977 Yamaha XS650
1978 Yamaha SR500 #119!
1978 Yamaha XS400
1978 Honda CB550K
1965 Ducati Monza 250

Sold off:
1992 Yamaha FZR600
1978 Yamaha SR500- I miss it so much.
1981 Yamaha Seca 550

Offline Jonesy

  • Shop Rat
  • Old Timer
  • ******
  • Posts: 2,648
  • "Damn! These HM300 Pipes Are Expensive!!!"
Re: 78 cb550k carb lines
« Reply #1 on: July 22, 2007, 01:08:23 PM »
The smaller one is a bowl vent. It just goes to the open air.
Logged
"Every time I start thinking the world is all bad, then I start seeing people out there having a good time on motorcycles; it makes me take another look." -Steve McQueen

Offline pablo78cb550

  • Hot Shot
  • ***
  • Posts: 318
  • mmmph.
Re: 78 cb550k carb lines
« Reply #2 on: July 22, 2007, 01:11:45 PM »
should i run a line from it some where? to avoid dirt.
Logged
Bikes in hand:
1977 Yamaha XS650
1978 Yamaha SR500 #119!
1978 Yamaha XS400
1978 Honda CB550K
1965 Ducati Monza 250

Sold off:
1992 Yamaha FZR600
1978 Yamaha SR500- I miss it so much.
1981 Yamaha Seca 550

Offline Jonesy

  • Shop Rat
  • Old Timer
  • ******
  • Posts: 2,648
  • "Damn! These HM300 Pipes Are Expensive!!!"
Re: 78 cb550k carb lines
« Reply #3 on: July 22, 2007, 01:24:08 PM »
The line usually just goes from the carbs up to the frame, where it is then looped back down near the swingarm.
Logged
"Every time I start thinking the world is all bad, then I start seeing people out there having a good time on motorcycles; it makes me take another look." -Steve McQueen
Pages: [1]   Go Up
« previous next »