« previous next »
Pages: [1]   Go Down

Author Topic: Did I buy the wrong jets for the cb500 carb?  (Read 1180 times)

0 Members and 1 Guest are viewing this topic.

Offline cocinero196

  • Enthusiast
  • **
  • Posts: 116
Did I buy the wrong jets for the cb500 carb?
« on: December 23, 2015, 05:03:48 AM »
Hi, i'm installing Uni Air Filter pods to a '77 CB550k3 w/ a CB500 Keihin 627b carb. After reading several posts re: pods and exhaust upgrades, i decided that an up-jet is a must for this build.

However, I think i may have ordered the wrong set of jettings for the CB500 Keihin 627b carb. I ordered this (1st pic):
www.ebay.com/itm/Genuine-Keihin-Carburetor-Round-Main-Jet-105-Honda-Carb-99101-393-1050-/172030070021?vxp=mtr

I think I should have ordered this (2nd pic):
www.ebay.com/itm/191417041014

Am I right? Should I have the ones I ordered replaced?


Logged

Offline jonda500

  • I may be crazy but I'm not stupid!
  • Master
  • *****
  • Posts: 1,813
  • With our thoughts we make the world (Monkey Magic)
Re: Did I buy the wrong jets for the cb500 carb?
« Reply #1 on: December 23, 2015, 05:51:31 AM »
oops, yes you bought the wrong ones
2nd pic is the ones you need
John
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 cocinero196

  • Enthusiast
  • **
  • Posts: 116
Re: Did I buy the wrong jets for the cb500 carb?
« Reply #2 on: December 23, 2015, 06:31:21 AM »
Quote from: jonda500 on December 23, 2015, 05:51:31 AM
oops, yes you bought the wrong ones
2nd pic is the ones you need
John

The "Secondary Main Jet" title in the ad threw me off. I thought i was looking for a primary/main jet. In almost all posts in this forum, no one ever said that I had to upgrade to new "Secondary main jets", people would always say main jets. :(
Logged

Offline flybox1

  • My wife thinks I'm a
  • Really Old Timer ...
  • *******
  • Posts: 14,289
Re: Did I buy the wrong jets for the cb500 carb?
« Reply #3 on: December 23, 2015, 07:14:08 AM »
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 mrfish2

  • I might be a
  • Hot Shot
  • ***
  • Posts: 679
Re: Did I buy the wrong jets for the cb500 carb?
« Reply #4 on: December 23, 2015, 08:19:10 AM »
Buy all your jets from the link flybox posted. That company sells GOOD quality jets.
Logged
1976 CB550K            1979 XS1100
1980 CB650C - Sold

Quote from: crazypj on October 19, 2008, 09:14:45 PM
It's a little motor and likes having the tits revved off it.

Offline harisuluv

  • Master
  • *****
  • Posts: 2,009
Re: Did I buy the wrong jets for the cb500 carb?
« Reply #5 on: December 23, 2015, 02:28:48 PM »
You need a 110 jet anyways not a 105.
Logged

Offline cocinero196

  • Enthusiast
  • **
  • Posts: 116
Re: Did I buy the wrong jets for the cb500 carb?
« Reply #6 on: December 23, 2015, 06:16:17 PM »
Quote from: harisuluv on December 23, 2015, 02:28:48 PM
You need a 110 jet anyways not a 105.

I also removed the internal baffles of the stock 4 into 4 exhaust. I was planning to get 2 sets of jettings for insurance, 105's and 110's...should i get 110's and 115's instead?
Logged

Offline harisuluv

  • Master
  • *****
  • Posts: 2,009
Re: Did I buy the wrong jets for the cb500 carb?
« Reply #7 on: December 23, 2015, 08:10:42 PM »
you could do that to be safe (110,115) but 110 is probably ok.  more important is to move the needle clip down (same as raising needles) one notch.
Logged

Offline cocinero196

  • Enthusiast
  • **
  • Posts: 116
Re: Did I buy the wrong jets for the cb500 carb?
« Reply #8 on: December 23, 2015, 10:37:47 PM »
Quote from: harisuluv on December 23, 2015, 08:10:42 PM
you could do that to be safe (110,115) but 110 is probably ok.  more important is to move the needle clip down (same as raising needles) one notch.

Got it! thanks @harisuluv!
Logged
Pages: [1]   Go Up
« previous next »