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Coil circuit resistance range: 3.0 to 5.0 Ohms (3.0 absolute minimum)Habe you checked coil primary resistance against Trispark specs? I believe <=3 Ohm is their spec.
Coil circuit resistance range: 3.0 to 5.0 Ohms (3.0 absolute minimum)Habe you checked coil primary resistance against Trispark specs? I believe <=3 Ohm is their spec.
According to Trispark trouble shooting guide for their latest twin stator unit, two 6v coils should have primary resistance of 1.8-2.2 Ohm:Coil circuit resistance range: 3.0 to 5.0 Ohms (3.0 absolute minimum)
Ethanol does the same blocking of small jets on all carburettors, my Keihin carb on my KLF300 and my Briggs carbs all need their pilot jet probing for clean starting every one or two years.
Could you post a bigger image? I can barely see that.According to Trispark trouble shooting guide for their latest twin stator unit, two 6v coils should have primary resistance of 1.8-2.2 Ohm:
It's a 1973, 750. Metal tank.Didnt mention year of bike, glass fibre/resin tank perhaps? Modern fuel will dissolve resin in such tanks. Leading fouled carb jets and even accumulated build up on intake valves. You did mention one side lower compression, and a sooty plug.
Its a screen shot off my phone, and text is actually smaller than the post comment text, when veiwed on my phone. Are you using a computer screen?Could you post a bigger image? I can barely see that.
I cut and pasted the text right out of the Specifications page in the pdf of the TriSpark manual for the 0006. There is no mention of that spec being specifically for dual output coils, but it would not surprise me if it was omitted by mistake.
I'm kidding. Should have used a smiley face.Its a screen shot off my phone, and text is actually smaller than the post comment text, when veiwed on my phone. Are you using a computer screen?
NO!!!! 3-5 ohms! < 3 = burn it up!Habe you checked coil primary resistance against Trispark specs? I believe <=3 Ohm is their spec.
Then trispark install guide and specs on their 6v coil sheet are wrong.NO!!!! 3-5 ohms! < 3 = burn it up!
No, there is some conflicting info but the resistance seen by the device must be between 3 and 5 ohms.Then trispark install guide and specs on their 6v coil sheet are wrong.
And that is why trispark says two single 6v coils...each 1.8 to 2.2 ohms in series. Or one, 12v dual output at 3.6 ohmNo, there is some conflicting info but the resistance seen by the device must be between 3 and 5 ohms.
This: https://www.trispark.com.au/6-volt-ignition-coils says that the current 6v coils are 2.2 ohms so 4.4 total.
This is from the current twins manual:
View attachment 116380
Generally, two Lucas original coils are 1.6 ohms so 3.2
If you use a dual-fire coil that is below 3.0 ohms, you will destroy the unit.
So what are you using with your TriSpark ignition?And that is why trispark says two single 6v coils...each 1.8 to 2.2 ohms in series. Or one, 12v dual output at 3.6 ohm
I have a trispark on my velo 500 single, running the trispark single 12v coil. On Commando i run VapeWassell ei with two 6v coils connected in series (original Lucas). They are whatever the spec is as listed in workshop manual.TriSpark ignition is finicky.
So what are you using with your TriSpark ignition?
Seems your coils are a little too high on primary resistance...should be closer to spec range 1.8-2.2 ohmI have a pair of 6v Lucas coils, the exact same ones that TriSpark sells along with their own coils and which the state are compatible with the Tri-Spark ignition. Unless my multimeter is totally whacko, each reads 2.8 ohms or a total of 5.6 ohms for the pair. This reading is above the citation in the TriSpark Install manual which calls for 3.0-5.0 ohms, or 1.8-2.2 ohms for their own coils or 3.6-4.4 ohms for the pair. So, what is correct.
I have measured MANY original Lucas coils with a professional ohmmeter. They are 1.6 ohms. The Tri-Spark coils are made the same way but are not identical and when I measured them, they were 1.8 ohms. I have written to ask why the link I gave states 2.2 ohms.I have a pair of 6v Lucas coils, the exact same ones that TriSpark sells along with their own coils and which the state are compatible with the Tri-Spark ignition. Unless my multimeter is totally whacko, each reads 2.8 ohms or a total of 5.6 ohms for the pair. This reading is above the citation in the TriSpark Install manual which calls for 3.0-5.0 ohms, or 1.8-2.2 ohms for their own coils or 3.6-4.4 ohms for the pair. So, what is correct.