FZR 400 GENESIS CDI FAULTY ???

[Evilchicken0]

I'm sure what you did cured it

[kawasakiinit]

i really hope so im getting fed up with it now

[kawasakiinit]

doom and gloom

the problem is back however now its on number one ????????????????????????????????????

im gonna take them bloody carbs off again tomoz and bench set the float heights ,i really dont know what else to do ???? anyone for an fzr bonfire party?

ps i think the leak may have been coming from the coolant pipe which i had to remove during head removal as it sits just above where i saw the fluid coming from.

this bike will not beat me !!!!!!!!!!!!!!!!!!!!!!!!!!!

[willandrip]

I thought it very strange that a top end inspect cured it, I also was unsure of the gasket leak .
You thought you had it cracked when you put your palm over the carbs on the other forum posts.

There was a reason why I asked how the carbs were placed when you took them off !

Sometimes a bit detritus is trapped in an internal passage.
When carbs are cleaned or dried out; it is not removed, just dislodged but still trapped.
Reassemble the carbs and it appears cured; but it's not.
It is still trapped and eventually ends up in the same position again.
Back to square one . !

That's my theory and I'm sticking to it.
You must think logically when doing diagnosis.

I still advise a check for ignition with a gun to completely rule that side TOTALLY out. It is an easy job.
The carbs need sonic work; some now replace the air jets just to rule them out; the size is so small and faffy that they cannot be guaranteed correct.

Dave; do yourself a favour and invest in a used set of carbs and completely strip and rebuild.
Have you anyone you can swap a set with as a test ?

[kawasakiinit]

when i took the carbs off i kept them level and did not drain them bill so i theory they should be same as when i took em off .i have a gun on order for ignition test.

my latest theory for what thats worth lol is number 1 carb worked before and number 2 did not appear to,now 1 doesnt and 2 does .the only things that have changed are the shims after i re checked them once i lapped the valves.

now this is the part where im doubting myself with the valve clearances and the way im checking them ,the way i do it is to get the cam lobe pointing to 12 oclock while the lifter is at 6 oclock and when i put the feeler guage in i dont force it so as to compress the valve spring in any way i just slide it in with slight resistance .

could i be being to gentle with em making the gap appear smaller than it is ?

[Evilchicken0]

Did you use new plugs for this or the old ones ?

[willandrip]

Your valve check technique is sound.
Can you not borrow a timing gun rather than buy one ?
I thought perhaps you may have stood the carbs in a way that allowed something to settle out.

It is strange for it to have started and ran ok initially and later the fault returned but on a different cylinder.

EDITED FOR ADDITIONS:

Dave one of these will perform the task that the gun would in this case and is much cheaper.

http://www.ebay.co.uk/itm/AUTO-IGNITION ... 5aff58ebb6

[kawasakiinit]

I now have a good selection of plugs swapping working ones with bad cylinder etc etc. Bill I won one on ebay for 99p :-) so something is going my way eh lol.

Am gonna re check valves clearance again later and as you say bill look out for some different carbs .

Thanks for ur input fellas much appreciated .

[willandrip]

That was a good deal; as motors did away with points ignition and alterable timing and mechanical ignition advance
the timing gun became obsolete. They can still do certain jobs though. Depending on what type; you may need a darkened area to perform the test.

I recently invested in an infra red thermometer; it is an excellent tool for checking header temps and thus mixture at idle. Cost aboot a £10.... should have had one years ago. Got sick of burnt fingertips: DOH.

[Evilchicken0]

That was a good deal; as motors did away with points ignition and alterable timing and mechanical ignition advance
the timing gun became obsolete. They can still do certain jobs though. Depending on what type; you may need a darkened area to perform the test.

I recently invested in an infra red thermometer; it is an excellent tool for checking header temps and thus mixture at idle. Cost aboot a £10.... should have had one years ago. Got sick of burnt fingertips: DOH.

Yeah I remember setting my Mini ignition. I'd do all the other jobs first and wait for evening. On one of them the timing chain was so slack the mark would dance about 30-40mm

So a new gadget ... when did you get that ?