« previous next »
Pages: [1]   Go Down

Author Topic: 78 cb550 exhaust  (Read 2957 times)

0 Members and 1 Guest are viewing this topic.

Offline galensmitty

  • Full Member
  • *
  • Posts: 19
78 cb550 exhaust
« on: May 04, 2009, 06:42:33 AM »
Just bought a 78 550k, and it runs great but the 4into1 exhaust that's on their doesn't give the rear brake pedal the required clearance.  In other words, the brake pedal scrapes the Exhaust.  Am I right to assume that this is not the right type of exhaust for this bike?  Is their a way to fix this, and if there is not, are there any places that sell aftermarket 4into1 exhaust systems that will fit this bike?
  Thanks for all the help
Logged

Offline texaninseattle

  • lots of protein in my
  • Enthusiast
  • **
  • Posts: 249
  • OHH Canada
Re: 78 cb550 exhaust
« Reply #1 on: May 04, 2009, 08:16:13 AM »
I have a '78 550 with the mac 4-1, and have no brake clearance issues
Logged
1978 Cb550k(Sold)
emgo pods
mac 4-1
105 mains
stock pilots
needles set 1 step richer than stock
IMS 2 turns out
1982 Suzuki GS850g

Offline ugmold

  • Full Member
  • *
  • Posts: 70
Re: 78 cb550 exhaust
« Reply #2 on: May 04, 2009, 08:57:41 AM »
I too have a 78 550K with a 4 into 1, no problems here either. Maybe if you post a picture.

I am actually taking mine off the bike to paint the headpipes, hope I don't snap off any head bolts.

Galensmitty, your avatar is yummy.

-ug
Logged

Offline NickC

  • Hot Shot
  • ***
  • Posts: 703
Re: 78 cb550 exhaust
« Reply #3 on: May 04, 2009, 10:16:32 AM »
You most likely have a 4-1 off an F model bike.....
Logged

Offline galensmitty

  • Full Member
  • *
  • Posts: 19
Re: 78 cb550 exhaust
« Reply #4 on: May 05, 2009, 05:35:21 AM »
I was thinking about getting a mac 4 in 1 exhaust,  How do you like it?
Logged

Offline mmtsquid

  • Hot Shot
  • ***
  • Posts: 393
Re: 78 cb550 exhaust
« Reply #5 on: May 05, 2009, 05:43:47 AM »
I like mine just fine!  The sound is a little tinny, but we don't have many options...........
Logged
77 CB550K4

Offline bozo4onion

  • Hot Shot
  • ***
  • Posts: 368
Re: 78 cb550 exhaust
« Reply #6 on: May 05, 2009, 05:53:16 AM »
MAC on an F.  Mine looks good and sound gread @ WOT.  Pretty good at legal speed too. Go for it!



Logged

Offline scartail

  • Hot Shot
  • ***
  • Posts: 286
Re: 78 cb550 exhaust
« Reply #7 on: May 05, 2009, 07:10:54 AM »
Quote from: galensmitty on May 05, 2009, 05:35:21 AM
I was thinking about getting a mac 4 in 1 exhaust,  How do you like it?

If you going to upgrade to a mac, you want to sell your old headers? I have a 550K as well, but I'm not picky about taking a hammer to anything. ;)
Logged
'89 Hawk GT, newly acquired, daily beater...
'76 CB550, was my daily beater... my cafe project...
'72 Yamaha R5, newly acquired project... donated to my buddy...
'67 Suzuki T20, still working on her too... Currently in pieces...

Offline ugmold

  • Full Member
  • *
  • Posts: 70
Re: 78 cb550 exhaust
« Reply #8 on: May 05, 2009, 07:13:29 AM »
Does the Mac header ever need any kind of maintenance?
Logged

Offline bozo4onion

  • Hot Shot
  • ***
  • Posts: 368
Re: 78 cb550 exhaust
« Reply #9 on: May 05, 2009, 07:16:35 AM »
Upgrade to a MAC? That just sounds wrong. I paint my MAC every season. Looks shiny and new.
Logged

Offline Soos

  • Just a butcher with a carbide hatchet, definitely not a
  • Master
  • *****
  • Posts: 2,324
Re: 78 cb550 exhaust
« Reply #10 on: May 05, 2009, 07:55:20 AM »
Quote from: bozo4onion on May 05, 2009, 07:16:35 AM
Upgrade to a MAC? That just sounds wrong.

+1

A MAC may be new, but from all I have read in the way of reviews it's a low end bottom of the barrel replacement exhaust system.
But anything is better than nothing I guess!



l8r
Logged
-=≡ Soos ≡=-
Just think to yourself what would Alowishus Devander Abercrombie do?
"Brix will be shat by your neighbors." - schwebel
(61mm)652cc 1979 cb650

Offline NickC

  • Hot Shot
  • ***
  • Posts: 703
Re: 78 cb550 exhaust
« Reply #11 on: May 05, 2009, 08:15:00 AM »
Quote from: scartail on May 05, 2009, 07:10:54 AM
Quote from: galensmitty on May 05, 2009, 05:35:21 AM
I was thinking about getting a mac 4 in 1 exhaust,  How do you like it?

If you going to upgrade to a mac, you want to sell your old headers? I have a 550K as well, but I'm not picky about taking a hammer to anything. ;)

I have the same thing on my K bike. A little heat and some bending and it works fine...
Logged

Offline needswork

  • Hot Shot
  • ***
  • Posts: 260
Re: 78 cb550 exhaust
« Reply #12 on: May 05, 2009, 08:29:28 AM »
I have a '78 550 K with 4-1 (Jardine). No brake pedal problems either.
Logged
'78 CB 550K fixer-upper. The bike needs work, I sure don't!

Offline texaninseattle

  • lots of protein in my
  • Enthusiast
  • **
  • Posts: 249
  • OHH Canada
Re: 78 cb550 exhaust
« Reply #13 on: May 05, 2009, 08:41:28 AM »
If my options were to either modify a stock 4-1 or buy a mac, I would for sure keep the stock 4-1. Its much nicer looking and probably higher quality. I only got the MAC for lack of a better option.
Logged
1978 Cb550k(Sold)
emgo pods
mac 4-1
105 mains
stock pilots
needles set 1 step richer than stock
IMS 2 turns out
1982 Suzuki GS850g

Offline galensmitty

  • Full Member
  • *
  • Posts: 19
Re: 78 cb550 exhaust
« Reply #14 on: May 05, 2009, 10:53:41 AM »
I'll post a picture  this evening when I get home.
  not sure if I can heat and bend the pipes.
Also I don't think the 4-1 set I have now is stock anyways.  Didn't they come stock with 4-4 setups?
  Thanks again
Smitty
Logged

Offline NickC

  • Hot Shot
  • ***
  • Posts: 703
Re: 78 cb550 exhaust
« Reply #15 on: May 05, 2009, 11:06:13 AM »
K bikes came with a 4-4 setup, F bikes a 4-1.....
Logged

Offline Queeg

  • insane fuel junkie
  • Enthusiast
  • **
  • Posts: 232
  • OY! with the poodles allready!
    • Queegs Problems
Re: 78 cb550 exhaust
« Reply #16 on: May 05, 2009, 06:12:12 PM »
I thought only the super sports came with the 4-1, the rest a 4-2!
Logged
guess who?

Offline NickC

  • Hot Shot
  • ***
  • Posts: 703
Re: 78 cb550 exhaust
« Reply #17 on: May 05, 2009, 06:14:30 PM »
Logged

Offline TwoTired

  • Really Old Timer ...
  • *******
  • Posts: 21,802
Re: 78 cb550 exhaust
« Reply #18 on: May 05, 2009, 06:35:30 PM »
Quote from: Queeg on May 05, 2009, 06:12:12 PM
I thought only the super sports came with the 4-1, the rest a 4-2!
All 550s came with 4 into 4 except the F model supersports with their 4 into 1.  The four pipes near the brake pedal needed a unique offset for the brake arm, foot peg and kick starter.  Only the F model frame accommodates this without some steel modifications.

Cheers,
Logged
Lloyd... (SOHC4 #11 Original Mail List)
72 500, 74 550, 75 550K, 75 550F, 76 550F, 77 550F X2, 78 550K, 77 750F X2, 78 750F, 79CX500, 85 700SC, GL1100

Those that learn from history are doomed to repeat it by those that don't learn from history.

Offline TE 450 Pilot

  • Enthusiast
  • **
  • Posts: 103
  • Just learning !
Re: 78 cb550 exhaust
« Reply #19 on: May 06, 2009, 04:00:17 PM »
Good luck with geting a mac. I have had one on order for 5 months. Not looking like i will get to ride my bike this summer. :-[
Logged
Randy

Cambridge Ontario

1975 Honda 550F
1976 Honda 550F
2007 Husqvarna TE 450
2008 Husqvarna TE 250

shaprok7

  • Guest
Re: 78 cb550 exhaust
« Reply #20 on: May 18, 2009, 07:36:43 PM »
What must of happen is that The last owner got a hold of 550f 4 into 1 and put it on your 550k.
1 you can heat and bend the pipe

2 you can get or make a longer shaft to put your foot pedal on
Logged
Pages: [1]   Go Up
« previous next »