mkblade
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| posted on 20/8/08 at 12:05 AM |
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fireblade coils
hi all
spent another 3 hours trying to get the engine running correctly still no joy i have attatched a pic could you please advise if the spark plug leads
are round the right way.
gravity fed the engine tonite started up ok then after about 15 mins it started running a bit rough idle started dropping gradually .i was pulling a
lead off one by one you can here the lead sparking on the plug , once the lead removed from plug it runs very slightly worse not much i put new plugs
in saturday again (thats eight sets now) .
only had it running for a bit saturday and sunday trying to sort it out and tonite plugs are black but not wet,
thanks
simon
 
Rescued attachment SP_A0166.jpg
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mkblade
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| posted on 20/8/08 at 12:07 AM |
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also any got any pics of how they have mounted there coils ? and can you get plug leads as a set or do you make them up?
cheers
 
Rescued attachment SP_A0161.jpg
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blakep82
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| posted on 20/8/08 at 07:25 AM |
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i don't know, but it doesn't look right with those 2 leads stretched over the engine. i'd say 1 coil looks after cyls 1&2, the
other does 3&4
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Avoneer
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| posted on 20/8/08 at 07:29 AM |
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I only had to lengthen 1 lead, the rest were OK.
You can pull the ends off 1 lead (carefully) and just replace the actual lead bit - I think I have some spare length in the garage.
Hope pic helps, you can see the numbers on the coils and which plug they go to.
This may be relevant to which wires you've connected to which coil - I'll see if I can find out from my wiring diagram.
 
Description
Pat...
[Edited on 20/8/08 by Avoneer]
No trees were killed in the sending of this message.
However a large number of electrons were terribly inconvenienced.
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Avoneer
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| posted on 20/8/08 at 07:30 AM |
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1 coil does 1 & 4 and the other 2 & 3 - but I still think it's relevant to which wire you have to which coil...
Pat...
No trees were killed in the sending of this message.
However a large number of electrons were terribly inconvenienced.
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Avoneer
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| posted on 20/8/08 at 07:34 AM |
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Yellow with thin blue wire goes to the coil pack that supplies 1 & 4.
Blue with thin yellow wire goes to the coil pack that supplies 2 & 3.
That should help.
Pat...
No trees were killed in the sending of this message.
However a large number of electrons were terribly inconvenienced.
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r1_pete
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| posted on 20/8/08 at 08:50 AM |
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looks like the engine is running on cold start, or extremely rich, either way as the engine warrms up it will run rougher and rougher.
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BenB
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| posted on 20/8/08 at 10:45 AM |
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1/4 and 2/3 looks okay so as long as you've got the coils connected to the right signal wire you should be okay.
Might just be the mixture being wrong.
Job for a colortune or wideband lambda I reckon!!!
Personally I'd hook up the proper pump first rather than gravity feeding it. Bike carbs can be a bit pinickity re fuel pressure (hence problems
when people run red-top pumps on them)...
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the_fbi
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| posted on 20/8/08 at 11:05 AM |
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Where is the CDI unit mounted?
Ideally it needs to be on a good heatsink as it will get hot, they are very prone to failure.
I forget the model the replacement should be taken from, but iirc it was a 500cc.
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Avoneer
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| posted on 20/8/08 at 05:07 PM |
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The CDI will be fine and you need the blade one.
Are you thinking of the Rectifier - that's the bit prone to failure and a Superdream one is normally used instead.
Nothing to do with the coils though.
Pat...
No trees were killed in the sending of this message.
However a large number of electrons were terribly inconvenienced.
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ReMan
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| posted on 20/8/08 at 05:10 PM |
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quote:
Originally posted by the_fbi
Where is the CDI unit mounted?
Ideally it needs to be on a good heatsink as it will get hot, they are very prone to failure.
I forget the model the replacement should be taken from, but iirc it was a 500cc.
I think you are confusing CDI with the regulator.
The CDI needs to be the right one. Some have used CB250 voltage regulators. These can cause a running problem, before they burst into flames
But as said carbs and fuel pump are prime suspects first
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ReMan
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| posted on 20/8/08 at 05:11 PM |
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Twist!
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the_fbi
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| posted on 20/8/08 at 06:53 PM |
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quote:
Originally posted by Avoneer
Are you thinking of the Rectifier - that's the bit prone to failure and a Superdream one is normally used instead.
I really shouldn't try and write a proposal whilst responding on lcb, or is it vice versa......
Totally correct, I meant rectifier which clearly also negates the answer as it wouldn't cause the issue.
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mkblade
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| posted on 20/8/08 at 10:50 PM |
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thanks for the info will check it out over the next couple of days
simon
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gingerprince
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| posted on 21/8/08 at 08:36 AM |
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quote:
Originally posted by mkblade
also any got any pics of how they have mounted there coils ?
My coils are fastened to the cradle with rivnuts. The rearward one feeds cylinders 1+4, the frontward 2+3. You can only see the rearward one on the
pic below but the other one is in the same location but at the front. Wires are clipped to the top chassis rail (don't use sticky pads, the
exhaust heat melts them ): -
 
Indy Engine
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