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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: Anse187 on July 03, 2024, 04:47:13 PM
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Hi.
I am out of ideas at this point. Now I need help... :johnny
4 and 2 cylinder is complete dead. engine works only front cylinders.
-compression pressure is ok every cylinder.
-injectors is ok. Changed places and no changed.
-coil/leads/spark plugs ok.
-valve clearanse is ok. Inside range.
-timing chain is set right.
...Tps, filters etc has been checked...
I am confused and out of ideas :idunno:
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It's a wasted spark system so 1&4 and 2&3 should fire together.
How are the spark plug leads attached to the coils?
Should be like this:
(https://i.imgur.com/sfzzJKB.jpeg)
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I have aftermarket "single" coil at this moment.
I know this is waste spark system so coil failure or Hall wont sound logic to me. But if would know what is the reason I wouldnt ask😄 thanks for reply.
And sorry for bad english. Some of comes from autocorrect...
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Tell us the name and model number of the coil.
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BSK speedworks coil
(https://www.bskspeedworks.co.uk/k-ignition-coil-ht-leads.html)
I also have old coil's put no change.
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Are the HT leads and pin connections set up like the diagram below?
(https://www.motobrick.com/gallery/4/1601-040724082524.png)
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Yes. I checked those again.
When I only have 1 and 3 cylinder injectors connected engine works smoother.
When I connected 2 and 4 those just makes randomly missfire. Sound like fireworks start explode.
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Ou fuck!
Problem solved.
That coil pack information didnt mean ignition order..
1 is 1 and 2 is 2....
Not 1-3-4-2...
No I feel my self stupid..
Thanks for help
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The diagram I posted is a screen shot from BSK's installation video. Although the video's subject was their custom ignition system, it also showed where the HT leads were connected on the coil housing terminals. I added the wiring connections based on the positions of the HT leads—2 & 3 in line with black/red; 1 & 4 in line with black/blue. I consider their printed instructions confusing, too; luckily the video clarified it for me. I guess it's working for you, too. Keep us posted.
Onward! 112350
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Yeah. Those printed instructions were short words
so it misleads me and cost me a lot of extra time for nothing.
But if we look at the good things. Now I'm starting to get to know my bike (first brick) :laughing1: there have been a couple of other things.
Maybe this weekend I will get the first test drive with the 4-cylinder block :laughing1:
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I havent drive this bike ever When it has worked :laughing1:
I bought this last winter and have made a couple of changes to it. :idunno:
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With all the weight loss it should be fine on just the two front cylinders. And it would have a more interesting exhaust note.
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Exhaust sound I liked more than now :laughing1:
Exxept missfire/fireworks sound wasnt so nice.
Performance.... Well.. You can drive on traffic...acceleration something similar to that of a normal car.