Just bought a motor for my bike and i had a question about the icm(black box). How do you tell if they go bad? I put new spark plugs in.new wires, new coils. Spark is whitish-yellow color.

 

I don't think that there's a way to tell visually that it's bad. Under normal wear and tear I think it would last many years. If it's been submerged in a flood, or had a significant impact from lets say an accident, or fire then it's probably not going to work. As far as testing, it has to be on the bike. Easiest way would be to put it on a known good bike and see if the bike runs with it on.

 

I was going to take to the place i bought it from just to see!

 

I would check the plugs at the rectifier, or stator first. It could even be a bad battery or fuse.

 

I replaced everything on the bike except the box! What a lesson in checking stuff with the manual and multimeter! That's what it's their for huh.

 

So, what's the status ? Are you saying that it's fixed ? Have you replaced the ICM ?

 

Haven't replaced it yet.When i do,i'll have video of the start up. i'm going to take video of the way the spark is(color=yellow), then also when i get the newer black box. I wont let the tread go without a solution.

 

I have several extra if you need one.