450 Enduro wont start / no spark

[iancp5]

You said that the issue is no spark and the fuses are all ok?

You can only check backwards from the plug. Is power getting to the coil if it is then check ECU is being powered up and that it is getting inputs from sensors such as crank position if it is then it's the ECU and you need to find one to swap to check it.

[Horsepower]

I have the same problem with my bike. When it will start, which is not often, it will only run for a few seconds then die. Talk about frustrated, it would be nice if someone else in the area had one to be able to swap parts. I'll be following your problem, maybe we can help each other out and actually ride these things sometime this summer.

[Vinny]

Now i'm getting a coil error on the diagnostic program. Bought a new coil. Still no spark to the plug. I have two ECUs . Same result w/ both ECUs and both coils.

Any ideas ?

[Nick]

I had one 450 that had a bad wiring harness. The bike would just shut off and it was usually 20 miles from the truck. You want to talk about a pissed off customer, just ask me what the guy had to say. I ended up giving him a new bike, then in time figured out the harness problem and sold that bike which is still going today.

[blitz11]

Originally Posted by Nick

just ask me what the guy had to say. .

What did that guy have to say?

[GasGas]

For the guy with the loose pin connector, just drop a short strand of wire into each pin hole and plug it back in. I had to do this on my 125 and it worked great for years after. It would seem the cdi plugs do not like to be unplugged and plugged back in.

[Vinny]

It was the # 20 pin on the ECU harness. It was loose. Wish I would of found that first instead of spending money and 5 weeks w/o riding. Lesson learned.