these things shuld all be checked
1. main and ignition fuses
3. spark plug
4. ignition spark gap
5. spark plug cap resistance
6. ignition coil resistance
7. main switch
8. engine stop switch
9. crankshaft position sensor resistance
10.lean angle sensor
11.wiring connections (of the entire ignition
All are fine according the manual's specs except the lean angle sensor (don't know how to check it exactly) and possible hidden faults in the wiring. That's why earlier I mentioned some of the voltages I was getting, to ask if they made sense. 12V to the coil, and 12V to the plug? 10V when cranking?
Is the only ground the black wire that goes from the ECU to the negative battery post?
Is it normal to have 12V to (and through) the coil as soon as you turn they key on? Is it also normal to have 12V to (and through) the coil even with the orange lead disconnected? I though the orange lead was power to the coil.
Yeah you pull the plug boot off and stick a screwdriver in it. Place the screwdriver shaft approx 1/8 inch away from a grounding point. Turn the bike over and there should be a spark arcing over to the grounding point!
Got two plugs, one old and one new, neither spark. I can try the screwdriver tomorrow.
Coil resistance readings are fine, so I'm trying to get some input on other symptoms, which is why I keep asking about the voltage readings and such that I'm getting, before jumping to the conclusion that the coil is bad. It's either a "wait while the part is shipped off ebay" or "expensive OEM part from the dealer" kind of situation for me.
well i dont have my raptor manual on this pc but if you pm me your email addy i will email you the manual i have on my laptop which has all of the voltage/resistance numbers you will need for the starter system and ecu
Thanks, but I have a copy of the manual. It only tells me what the resistances of the ignition components should be, and those all check out fine. I'm now trying to check continuity of the wires to the components, which is sometimes easiest by testing for power.
So back to some of my earlier questions:
Does the ignition coil normally have 12V to (and through) it as soon as you turn the key on?
Does the ECU create spark by interrupting power to the coil (orange wire)?
Where is the ignition system's ground, besides the spark plug itself?
It could be a few things, but what comes to mind when I hear that is your flywheel,stator and CPS. These are both in the left hand side case and tell your spark plug when to spark. Either of these could be bad or your gap between the CPS and your flywheel could be too far and its not reading your flywheel at all. Also check your flywheel and take it off and make sure your keyway is fine. Im having a similar pproblem except my spark happens at weird times and it is causing my flywheel to spin off the end of my crank. Im still trying to chase it after a year and I am in the process of changing the coil and stator and CPS assembly. im hoping to have good luck this time.
Edit: I dont think theres anything wrong with your coil if it tests fine according to yamaha, we tested ours and compared it to a bike on the showroom floor at our local dealer and it tested fine, but i think you should check inside your left hand side case. And if you take the upper plug out of the side case you can check the gap between the CPS pick up and the flywheel if you roll the motor over and get a raised bar in line with the CPS.