Went to start bike and ..? Bike was running three days ago fine. good battery, good starter relay, bike cranks strong, but no plug spark om either cylinder.

1. Bad dyna 3000 ( 5yrs old)?
2. bad rectifier (plugged in different one, no change)?
3. bike is cursed ?


How about some ideas.

I would say the dyna. Do you have a stocker that you can swap it out with Just to check?

+1 on the dyna. R*'s aren't cursed so it can't be that. The rectifier is part of the charging system and wouldn't keep it from starting. Good luck, hope you get it running soon.

Maybe pick-up coil? I'm not familiar with the purpose of this coil, but have read in the past it will effect both ignition coils from firing. Any way, maybe someone else can pick up on this item with more knowledge than me and explain how it affects the starting.

Something else to check if you are using the stock plugs and wires, each sparkplug boot has a 10k resistor inside, they are known to fail, but for all 4 to go bad at the same time, is against the odds.

The "pick up coil" is that part of the ignition system that picks up on, and communicates to the ignitor, how fast the engine is turning over. It mounts inside the clutch housing, where it reacts to the pick up coil timing rotor(I'm interpreting from clymers here ). It then sends a pulse to the ignitor, so the ignitor knows when to send the spark to the plugs.
Clymers has the specifics regarding the test procedure, and what to look for.
Its a white two wire connector, with a grey, and a black/blue wire inside the left side cover. With the positive probe from the ohmmeter in the grey side, and the negative probe in the black/blue side of the connector on the pick up coil side of the connector, you should get a reading of 248 to 372 ohms. If its outside of those parameters, it should be replaced.
If it goes bad, it'd be like an open switch or break in a circuit. The ignitor might be just fine, but it won't send a spark because it doesn't know when to do it.

Skwearpeg,

thanx for the help of more info on the pick-up coil. As far as Clymer test procedure, as long as you disconnect the connector under the cover, really does not make a difference which meter lead goes to which wire, it's only a coil (wire) it will have the same reading in either case of probe leads. Yes, there are some electronic components that are polarity sensitive, coils are not one of them.

Erbman02 wrote:
Skwearpeg,

thanx for the help of more info on the pick-up coil. As far as Clymer test procedure, as long as you disconnect the connector under the cover, really does not make a difference which meter lead goes to which wire, it's only a coil (wire) it will have the same reading in either case of probe leads. Yes, there are some electronic components that are polarity sensitive, coils are not one of them.

Thanks. I wasn't sure if it made a difference here or not. Clymers had it down that way. I wasn't sure if it was a one way thingie. I just bought a brandy new multimeter from Sears awhile back, as insurance against ever needing one