94 Zx7 - Rough Idle after oil change and plugs

  #1  
Old 03-26-2008, 03:31 AM
Smorphine's Avatar
Junior Member
Thread Starter
Join Date: Feb 2008
Posts: 17
Default 94 Zx7 - Rough Idle after oil change and plugs

Can't figure it out. I changed the oil, changed the plugs and put it all together. Bike starts great but after a few minutes it starts to run rough and dies. Will restart with a bit of throttle but dies. Also, the bike is hard to shift into gear from neutral.

Tried running down all the vacuum lines, inspected the fuel filter, all seems good. Any ideas?
 
  #2  
Old 03-26-2008, 01:51 PM
Kohburn's Avatar
Senior Member
1st Gear Member
Join Date: Jul 2007
Location: Coastal NC
Posts: 5,655
Default RE: 94 Zx7 - Rough Idle after oil change and plugs

most likely its the plugs - what kind did you get and did you check the gap to make sure it was correct before installing them?

when a problem starts its usually because of the last thing you did.
 
  #3  
Old 03-26-2008, 06:06 PM
hoedogg's Avatar
Administrator
1st Gear Member
Join Date: Feb 2006
Location: bay area cali
Posts: 17,484
Default RE: 94 Zx7 - Rough Idle after oil change and plugs

ditto^^^ i would check the plugs too. is the fuel tank full? sorry for the dumb questiontry switching to reserve.
 
  #4  
Old 03-26-2008, 07:44 PM
stone_sour09's Avatar
Senior Member
1st Gear Member
Join Date: May 2007
Location: Defiance, Ohio
Posts: 1,714
Default RE: 94 Zx7 - Rough Idle after oil change and plugs

+1hd
 
  #5  
Old 03-26-2008, 11:11 PM
Smorphine's Avatar
Junior Member
Thread Starter
Join Date: Feb 2008
Posts: 17
Default RE: 94 Zx7 - Rough Idle after oil change and plugs

Thanks everyone for the quick replies. Will do. Does anyone know what plugs suppose to go in it? What gap?
 
  #6  
Old 03-27-2008, 12:14 AM
stone_sour09's Avatar
Senior Member
1st Gear Member
Join Date: May 2007
Location: Defiance, Ohio
Posts: 1,714
Default RE: 94 Zx7 - Rough Idle after oil change and plugs

I'm thinking the plugs should be NGK CR9E or if you get the iridium it would just be CR9EIX
 
  #7  
Old 03-27-2008, 12:38 PM
Smorphine's Avatar
Junior Member
Thread Starter
Join Date: Feb 2008
Posts: 17
Default RE: 94 Zx7 - Rough Idle after oil change and plugs

Should they come pre-gapped from the box or do I need to gap them? What gap?

Thanks again.
 
  #8  
Old 03-27-2008, 03:43 PM
Kohburn's Avatar
Senior Member
1st Gear Member
Join Date: Jul 2007
Location: Coastal NC
Posts: 5,655
Default RE: 94 Zx7 - Rough Idle after oil change and plugs

even the ones that claim to be pregapped tend to be off from bouncing around inside the boxes during shipping. pick up a haynes manual (usually 11-13$) it should have the gap info along with other useful maintanance stuff
 
  #9  
Old 03-31-2008, 02:50 AM
Smorphine's Avatar
Junior Member
Thread Starter
Join Date: Feb 2008
Posts: 17
Default RE: 94 Zx7 - Rough Idle after oil change and plugs

Excellent advice. The plugs were the wrong type. Got them changed and gapped. The factory gap was a bit tight, had to open them a bit.

Thanks everyone.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
adinoo
Ninja ZX-9R
13
06-13-2013 02:12 AM
seizetheday4eva
KLX 250S
7
08-14-2012 04:25 AM
capncalyx
Ninja ZX-6R & ZX-6RR
1
08-13-2007 06:45 PM
slablocal
General Tech
5
07-08-2006 08:21 AM


Thread Tools
Search this Thread
Quick Reply: 94 Zx7 - Rough Idle after oil change and plugs



All times are GMT. The time now is 05:47 AM.