« previous next »
Pages: [1]   Go Down

Author Topic: middle two cylinders  (Read 1058 times)

0 Members and 1 Guest are viewing this topic.

gator1gear

  • Guest
middle two cylinders
« on: September 27, 2008, 01:31:44 PM »
I'm having a problem that's kicking my rear end. The plugs on the outer two cylinders on my CB550 look great. The middle two look just like they did when they came outta the box. No change in color from new. They're not wet or anything either. We yanked the carbs off my buddy's bike (same as mine, 022A) We cursed the air box in a way that was appropriate, and no changes whatsoever in my plug readings. All this was after 4 miles or so. Really scared to ride it too far. No skip, no pop, no ping, no bang. Any clues?
Logged

Offline CBGhia

  • Expert
  • ****
  • Posts: 1,347
Re: middle two cylinders
« Reply #1 on: September 27, 2008, 01:46:33 PM »
Have you checked for spark on those 2 cylinders?  They are running from the same coil so you may want to check that.
Logged
CB550 Cafe, GL1000, Buell Ulysses
Quote from: dave500 on February 14, 2014, 03:53:33 AM
if you dont trial spin the camshaft in the head and cover you are a novice,with no natural mechanical appitude,destined for destruction.
"The cleaner the dipstick, the closer to God." -Rev. Horton Heat
“Faster, Faster, until the thrill of speed overcomes the fear of death.”  - Hunter S. Thompson

gator1gear

  • Guest
Re: middle two cylinders
« Reply #2 on: September 27, 2008, 01:55:24 PM »
Roger that. If it has no spark wouldn't the plugs be really wet? Going to check now... No spark, but it was revving good?!
Logged

gator1gear

  • Guest
Re: middle two cylinders
« Reply #3 on: September 27, 2008, 01:56:19 PM »
Has a little skip now that wasnt there before ???
Logged

KingCustomCycles.com

  • Guest
Re: middle two cylinders
« Reply #4 on: September 27, 2008, 01:57:17 PM »
Are the pipes warm?  They should be evenly warm/hot across the 4
Logged

gator1gear

  • Guest
Re: middle two cylinders
« Reply #5 on: September 27, 2008, 02:34:07 PM »
Nope, no spark on middle two :(
Logged

KingCustomCycles.com

  • Guest
Re: middle two cylinders
« Reply #6 on: September 27, 2008, 06:26:54 PM »
Check the points and black power wire to the coils, coils seldom fail like that.
Logged

Offline BobbyR

  • Really Old Timer ...
  • *******
  • Posts: 12,365
  • Proud Owner of the Babe Thread & Dirty Old Man
Re: middle two cylinders
« Reply #7 on: September 27, 2008, 07:40:09 PM »
Also check the wires from the points to the coils. Mine had word throuugh and killed the middle cylinders.
Logged
Dedicated to Sgt. Howard Bruckner 1950 - 1969. KIA LONG KHANH.

But we were boys, and boys will be boys, and so they will. To us, everything was dangerous, but what of that? Had we not been made to live forever?

gator1gear

  • Guest
Re: middle two cylinders
« Reply #8 on: September 27, 2008, 08:22:10 PM »
I found my problem guys. Wire to coil was loose. I still don't get why the plugs were not really wet or anything, but oh well :-\
Logged
Pages: [1]   Go Up
« previous next »