Help & FAQs    Search BCF    Members    Groups    Events Calendar
Resend my activation email : Register : Log in 
BCF: Bike Chat Forums


Zzr sparks

 Reply to topic
Bike Chat Forums Index -> The Workshop
View previous topic : View next topic  
Author Message

Johnb42
L Plate Warrior



Joined: 11 Jun 2010
Karma :
PostPosted: 11:55 - 11 Jun 2010    Post subject: Zzr sparks Reply with quote
Hi I've a zzr400 the original coils have gone and been replaced with ???? Don't know what they are off but they are just cable tied on the frame should they be earthed and how do I check for a spark any help would be great thanks
 Back to top
View user's profile Send private message You must be logged in to rate posts

temeluchus
World Chat Champion



Joined: 01 Oct 2008
Karma :
PostPosted: 12:06 - 11 Jun 2010    Post subject: Reply with quote
No the core doesnt need to be earthed.

Check for a spark by removing a HT lead from the spark plug, put a spare plug in the HT cap. Hold the spark plug against bare metal on the engine and turn the engine over. Best done at night when its easier to see. Or in a dark garage.

Is it not running properly?

post pics of the coils in question.
____________________
Some shite cruiser. Now with guns and FREEDOM!
 Back to top
View user's profile Send private message Visit poster's website You must be logged in to rate posts
Vincent This post is not being displayed because the poster is banned. Unhide this post / all posts.

Johnb42
L Plate Warrior



Joined: 11 Jun 2010
Karma :
PostPosted: 19:44 - 11 Jun 2010    Post subject: Zzr sparks Reply with quote
Ok I've had the plugs out cleaned and regapped them they have got some spark but not very strong freash fuel new battery turns over lovely but non starter is it worth giving it a shot of easy start it has been standing some time any ideas cheers
 Back to top
View user's profile Send private message You must be logged in to rate posts
Vincent This post is not being displayed because the poster is banned. Unhide this post / all posts.

Phoenix
Twisted Firestarter



Joined: 01 Aug 2002
Karma :
PostPosted: 21:35 - 11 Jun 2010    Post subject: Reply with quote
Temeluchus wrote:
No the coil doesn't need to be earthed.


Coils do need to be earthed, if you take away the earth then you'll find you have no spark or you end up with sparks where the coil is barely touching the chassis, bolt them on.

I had this problem with a VFR400, had no spark on 2 cylinders and found one of the coils wasn't bolted down tightly enough to the frame.
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts

Johnb42
L Plate Warrior



Joined: 11 Jun 2010
Karma :
PostPosted: 09:20 - 12 Jun 2010    Post subject: Zzr sparks Reply with quote
Ok so new plugs today. So if the spark is still weak and the coils are bolted to the chassis what's next to look at cheers
 Back to top
View user's profile Send private message You must be logged in to rate posts

temeluchus
World Chat Champion



Joined: 01 Oct 2008
Karma :
PostPosted: 10:22 - 12 Jun 2010    Post subject: Reply with quote
Phoenix wrote:



Coils do need to be earthed, if you take away the earth then you'll find you have no spark or you end up with sparks where the coil is barely touching the chassis, bolt them on.

I had this problem with a VFR400, had no spark on 2 cylinders and found one of the coils wasn't bolted down tightly enough to the frame.


More likely the coil had a slight fracture and bolting them down closed the broken circuit.

If a coil has two low tension inputs then the bolt holes at the ends of the cores do not need to be earthed. The ZZR400 uses the same type of coils and wiring as the 600, GPz900, GPz550, Z550, ZZR1100 and any number of Kawasakis with twin output coils. These DO NOT have to have the core earthed. I run a GPZ550 coil on my BMW R100 engine, and that is cable tied to the battery mount on the dnepr frame. It is not earthed to the cores.

Measure the primary resistance across the input terminals. Kawasakis usually require a 2.2 ohm coil. Maybe someone has put a 3 ohm col on though it really should still run. The col may also be faulty and read much higher.

https://www.patternparts.net/images/ww/parts/713782.jpg

Low tension is earthed via one of the terminals via the CDI. High Tension is earthed via the spark plug going back to a common earth with the low tension primary. The core does not need to be bolted to anything.
____________________
Some shite cruiser. Now with guns and FREEDOM!
 Back to top
View user's profile Send private message Visit poster's website You must be logged in to rate posts
Old Thread Alert!

The last post was made 15 years, 195 days ago. Instead of replying here, would creating a new thread be more useful?
  Display posts from previous:   
This page may contain affiliate links, which means we may earn a small commission if a visitor clicks through and makes a purchase. By clicking on an affiliate link, you accept that third-party cookies will be set.

Post new topic   Reply to topic    Bike Chat Forums Index -> The Workshop All times are GMT
Page 1 of 1

 
 You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum

Read the Terms of Use! - Powered by phpBB © phpBB Group
 
Debug Mode: ON - Server: birks (www) - Page Generation Time: 0.09 Sec - Server Load: 0.89 - MySQL Queries: 14 - Page Size: 57.34 Kb