OEM Coil setup or Nology coil and wires?

[JerzOutlaw350]

 I’m currently working on a 98 Banshee for a client of mine. The Banshee is equipped with a Nology ProFire ignition coil and Nology HotWires. Banshee was bought in early April with Nology parts already installed. Ignition system looks to be installed correctly. Banshee ran like a beast then after about 3 or 4 rides the Banshee is now currently having an issue with Spark and then No Spark. I found that the OEM wiring harness was suffering from brittle wire disease. I got a STB harness with the tors delete thinking that was the issue. That wasn’t it. So then I switched the CDI ,Stator and the switch on the handlebars from another running banshee that was the same year and that wasn’t the problem either. I even disconnected the key switch and bypassed it to see if that was the problem and that wasn’t the issue. I then went ahead and switched the ignition coil and it fixed the problem.
 

  Now my client knows that when he bought this Banshee it had a aftermarket ignition system installed.  But now my question is to go back with Nology or go with OEM ? If the Banshee was mine I would be putting OEM on it . What’s everyone’s opinion? 
 

** Things I forgot to mention  

   Banshees mods are as followed HJR ported stock stroke cylinders, piston size unknown, HR Crank T&W, T5 pipes, V force 4 reeds, Chariot racing intakes without boost bottle, Pro Design Pro Flow with K&N filter, Coolhead with unknown dome size, Keihin 28mm pwk’s, timing advanced to +4 and Chariot racing water pump impeller and drain cover. 

  I also forgot to mention I did a leak down test and that was good and I did 2 compression tests and that showed 160psi in both cylinders. 

[locogato11283]

Nology are fucking junk. For the very few amount of those things out there, I have seen too many fail.

OEM only.

[kawa110]

OEM everything.

Ensure proper grounding.


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[ClaudeMachining]

My 421 ran 2 years with Nology stuff without any probs.

My 521 setup was on MotorCity Ignition for 4 years without any problem.

All the cdi/Ignition problems i got was with oem stuff.


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[JerzOutlaw350]

  I told the owner of this Banshee that when ever it comes to replacing anything electrical on the Banshee it should only be Genuine OEM Yamaha parts. So.. I explained to him that I really don’t know why the previous owner had this type of ignition system on it in the first place. So I took the extra OEM coil that I put on his banshee just as a test and put it back on and let him take it out for a quick rip today and when he came back he had a smile from ear to ear. So now I’m off to order a brand new OEM coil. 
 

Thanks for the replies guys!!! 

[kawa110]

Some of us add a ground from a solid point on engine to a solid point on the chassis in addition to OEM grounding points. Pretty sure I seen it on Claude’s bike. Others will say not necessary.


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[ClaudeMachining]

Some of us add a ground from a solid point on engine to a solid point on the chassis in addition to OEM grounding points. Pretty sure I seen it on Claude’s bike. Others will say not necessary.


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Yes sir!!! I always make frame/engine ground.



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[locogato11283]

I ran ground from motor to chassis but technically it doesn’t need it.

[kawa110]

I ran ground from motor to chassis but technically it doesn’t need it.

You don’t seem to be one that wastes time doing something that’s not needed…..


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[locogato11283]

You don’t seem to be one that wastes time doing something that’s not needed…..


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I only started doing it because I was chasing a problem. It ended up being something electrical.