Printable Version | Subscribe | Add to Favourites
New Topic New Poll New Reply
Author: Subject: ZX10R starts sort of.
roadrunner

posted on 6/7/20 at 03:30 PM Reply With Quote
ZX10R starts sort of.

Got my regulator sorted and all plumbed in.
Engine starts and seems to run but noticed that it shakes slightly.
Turns out that it's only firing on cylinders 2 and 3.
1 and 4 primary pipes stay stone cold.
I have a spark to 1 and 4 and the plugs seem wet from fuel but I'm at a loss why they don't fire.

Any ideas I could look for.

Regards

Brad

View User's Profile View All Posts By User U2U Member
steve m

posted on 6/7/20 at 05:15 PM Reply With Quote
Swop the leads on 1 and 4, ?

and try again

steve





Thats was probably spelt wrong, or had some grammer, that the "grammer police have to have a moan at




View User's Profile View All Posts By User U2U Member
adithorp

posted on 6/7/20 at 06:13 PM Reply With Quote
Is it individual coil on plug or twin coil packs feeding 2cylinders each? Do you have sparks on 1+4?





"A witty saying proves nothing" Voltaire

http://jpsc.org.uk/forum/

View User's Profile View All Posts By User U2U Member
roadrunner

posted on 6/7/20 at 06:33 PM Reply With Quote
Thanks fellas.
Because of the layout of the loom its difficult to get them wrong way round.

There are 4 coils like in all modern engines and there is a spark on those that are not firing.

View User's Profile View All Posts By User U2U Member
adithorp

posted on 6/7/20 at 08:03 PM Reply With Quote
Try listening for the injectors operating with a screw driver. You should hear a click.





"A witty saying proves nothing" Voltaire

http://jpsc.org.uk/forum/

View User's Profile View All Posts By User U2U Member
roadrunner

posted on 6/7/20 at 09:44 PM Reply With Quote
quote:
Originally posted by adithorp
Try listening for the injectors operating with a screw driver. You should hear a click.


I guess you rest the driver on the injectors as they operate.

View User's Profile View All Posts By User U2U Member
adithorp

posted on 7/7/20 at 06:37 AM Reply With Quote
Yes. A long thin screwdriver is best. Rest the tip on what you want to listen to and the handle against your ear.





"A witty saying proves nothing" Voltaire

http://jpsc.org.uk/forum/

View User's Profile View All Posts By User U2U Member
russbost

posted on 7/7/20 at 07:32 AM Reply With Quote
before spending loads of time on anything else I would try swapping the plugs from 2 & 3 with the ones from 1 & 4. If it's anything like other modern bike engines, if it's fouled the plugs it won't "unfoul" them. Would be very odd to have spark on all 4 & injectors only working on 2, plus you say plugs look wet, so sounds like it's getting fuel





Furore Formula Car - the only two seater modern Formula Car lookalike. I no longer run Furore Products or Furore Cars Ltd, but would still highly recommend them for Acewell dashes, projector headlights, dominator headlights, indicators, mirrors etc, best prices in the UK! Take a look at http://www.furoreproducts.co.uk/ or find more parts on Ebay, user names furoreltd & furoreproducts, discounts available for LCB users.
Don't forget Stainless Steel Braided brake hoses, made to your exact requirements in any of around 16 colours. http://shop.ebay.co.uk/furoreproducts/m.html?_dmd=1&_ipg=50&_sop=12&_rdc=1

NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
View User's Profile E-Mail User Visit User's Homepage View All Posts By User U2U Member   russbost 's Aim
roadrunner

posted on 7/7/20 at 01:07 PM Reply With Quote
Hi Russ.

I have tried different spark plugs.
I will try swapping plugs and coils though.

View User's Profile View All Posts By User U2U Member
roadrunner

posted on 19/7/20 at 04:50 PM Reply With Quote
Hi fellas.

It now runs in all 4 cylinders.
I ended up taking the injectors out. Tested 1 that wasn't working, just put 12v through it alternating the current then swapped them over. At this point I had achieved 3 cylinders firing.
Took out the last one, put 12v through it and it seemed to be stuck. After a few swapping around of the current it started working.
All back together and working fine.

Thanks all.

View User's Profile View All Posts By User U2U Member
adithorp

posted on 19/7/20 at 05:06 PM Reply With Quote
Wayhay!

Might be worth sticking some injector cleaner in the fuel just to get rid of any residual lacquer. Forte is good or Wynns if you can't get.





"A witty saying proves nothing" Voltaire

http://jpsc.org.uk/forum/

View User's Profile View All Posts By User U2U Member
roadrunner

posted on 19/7/20 at 05:41 PM Reply With Quote
Already done that.;-)
View User's Profile View All Posts By User U2U Member

New Topic New Poll New Reply


go to top






Website design and SEO by Studio Montage

All content 2001-16 LocostBuilders. Reproduction prohibited
Opinions expressed in public posts are those of the author and do not necessarily represent
the views of other users or any member of the LocostBuilders team.
Running XMB 1.8 Partagium [ 2002 XMB Group] on Apache under CentOS Linux
Founded, built and operated by ChrisW.