« previous next »
Pages: [1]   Go Down

Author Topic: Carb jet direction?  (Read 1082 times)

0 Members and 1 Guest are viewing this topic.

Offline brett_bike

  • Hot Shot
  • ***
  • Posts: 448
  • '73 CB500 Four K2
Carb jet direction?
« on: July 31, 2016, 04:44:36 PM »
I have my main jets out thing a few tuning changes but I forgot which way they install. 

Stupid, I know.

Does the skinny orifice of the jet get inserted into the carb or the opposite side?

Thanks
« Last Edit: July 31, 2016, 06:15:36 PM by brett_bike »
Logged

Offline riverfever

  • Master
  • *****
  • Posts: 1,796
Re: Carb jet direction?
« Reply #1 on: July 31, 2016, 07:12:47 PM »
The end of the jet that the fuel gets sprayed out of and up into the emulsion tube looks like a shallow bowl when you look in the end of it. The other end is much deeper. Does that help or do you want/need a pic?
Logged
http://forums.sohc4.net/index.php?topic=127186.0

"You wouldn't think that out here...a man could simply run clear...out of country but oh my...oh my...nothing but the light." -Ben Nichols

Offline brett_bike

  • Hot Shot
  • ***
  • Posts: 448
  • '73 CB500 Four K2
Re: Carb jet direction?
« Reply #2 on: July 31, 2016, 07:15:56 PM »
Make sense.

Shallow end goes into the carb, deep end goes into the gas.

That's what I thought, but I had all the o-rings off and had a brain fart.

Thanks. 
Logged

Offline riverfever

  • Master
  • *****
  • Posts: 1,796
Re: Carb jet direction?
« Reply #3 on: July 31, 2016, 07:19:46 PM »
Yep you got it. I did the exact thing once. Carry on.
Logged
http://forums.sohc4.net/index.php?topic=127186.0

"You wouldn't think that out here...a man could simply run clear...out of country but oh my...oh my...nothing but the light." -Ben Nichols

Offline flybox1

  • My wife thinks I'm a
  • Really Old Timer ...
  • *******
  • Posts: 14,301
Re: Carb jet direction?
« Reply #4 on: July 31, 2016, 07:32:49 PM »
The end stamped w the keihin logo is always in the gas...lol
Logged
'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
77/78 cool 2 member #3
"Knowledge without mileage equals bullsh!t" - Henry Rollins

"This is my CB. There are many like it, but this one is mine…"

Offline jonda500

  • I may be crazy but I'm not stupid!
  • Master
  • *****
  • Posts: 1,808
  • With our thoughts we make the world (Monkey Magic)
Re: Carb jet direction?
« Reply #5 on: July 31, 2016, 08:19:53 PM »
Quote from: flybox1 on July 31, 2016, 07:32:49 PM
The end stamped w the keihin logo is always in the gas...lol
and the end w the o ring always goes into the orifice...
Logged
Remember that an ignoramus is only someone who doesn't know something you just learned yesterday!

A starter clutch thread:
http://forums.sohc4.net/index.php/topic,122084.0.html
1972 CB500K1 original 4 owner bike
1972 CB500K1 returned to complete/original condition
1975 CB550F built from parts - project thread:
http://forums.sohc4.net/index.php/topic,149161.msg1711626.html#msg1711626
197? CB500/550 constructing from left over parts
1998 KTM 380 (two stroke) recent impulse buy, mmmm...

Offline riverfever

  • Master
  • *****
  • Posts: 1,796
Re: Carb jet direction?
« Reply #6 on: July 31, 2016, 08:43:28 PM »
He didn't have the o rings on.
Logged
http://forums.sohc4.net/index.php?topic=127186.0

"You wouldn't think that out here...a man could simply run clear...out of country but oh my...oh my...nothing but the light." -Ben Nichols
Pages: [1]   Go Up
« previous next »